Lucas Distributor Vacuum Advance Units 1950-89

Description: Lucas distributor vacuum advance units 1948-1989Lucas DVX, DMBZ6, DM2P4, 22D, 25D, 35D, 45D, 36D, 47D We stock many more not listed. $89.95 ea. Below is our list of all the original proper vacuum unit part numbers and advance codes originally installed on you vehicle when new. The O.E. Part number represents the unit type “Hex or cup chamber, link type, threaded or hose fitting and operating advance code. Unit s are not interchangeable unless they have the same code. A hose unit may take the place of a threaded line unit or vice versa, but a unit with the wrong code will effect how the engine runs and may cause damage. Always order units by referring to the O.E. distributor number to assure you receive the proper O.E. unit. All our products have a 2 year warranty. 30 day any reason return policy. When ordering please specify which unit you need in "Note to Seller". Operation of the distributor vacuum advance unit. Vacuum units are not interchangeable unless they carry the same identification number, as each unit is made up to suit a particular engine. Additional control of the spark timing is brought about by the vacuum unit. As the unit is connected to the engine intake manifold, its operation depends on the vacuum present in the manifold. The vacuum effect varies with the engine load. The vacuum unit produces additional advance when the engine revs are high, but mainly when the load is light. At full throttle when the engine is pulling hard the vacuum unit becomes wholly or partly inoperative. The general effect of the vacuum unit is to increase the liveliness or performance of the engine and enhance a noticeable improvement in fuel economy. Proper vacuum advance function depends on a tight vacuum line. Failure due to cracked, chafed pipes or loose unions, result in vacuum advance unit failure to operate! Many units checked for code operating specs are found defected. Most vacuum gauges are calibrated in inches of mercury. The Mityvac vacuum pump can be use to check fairly accurate movement. 1- Check for the correct unit. Units are not interchangeable. 2 - Check the unit holds vacuum. If the unit leaks, it needs replacing. 3 - Check for proper movement. Most over looked, effecting performance, mileage and cooling. The vacuum units operates within the range indicated by the 3 digit code next to the part number. Example; the code 5 12 8 indicates, the unit starts to advance at 5 mercury "vacuum", will reach full advance at 12 mercury "vacuum", with 8 degrees total distributor ignition advance / 16 degrees spark advance at the crank. Units that no longer hold vacuum are obviously bad. It seems most people are under the impression that if the unit holds vacuum, it's considered in good operating condition. This assumption is wrong! Not obvious is a majority of original units are dry, stiff or plugged with condensed fuel vapor restricting proper movement and many operate well above the coded range. This renders the unit inoperable with very little benefit, if any at all. Replacing an original unit with a fresh new unit, often has a significant improvement in overall performance, mileage, cooling and often for much less that expensive engine modifications. Disclaimer:Re-manufactured Lucas® distributor vacuum units by British Vacuum Unit, which is not affiliated with ZF Friedrichshafen AG, the owner the US trademark for Lucas®. For the first time in 60 plus years "British Vacuum Unit" is the only manufacturer in the world of early original type hex chamber distributor vacuum units. Accurate in detail & operation, made for specific vehicles and part number. State the original unit part number you need with your contact information. All shaft units supplied with the full 4 pc micro-adjuster kits. "micro-adjuster parts have not been available for years!" We can manufacture any unit you request, such as our special 1971-76 TR6 vacuum advance. "Not retard" Takes the place of the original retard unit and delivers the performance of the 1960s. All DVX 2 stud and DM units with "large vacuum cap" can be ordered by code. Many early Lucas units were manufactured with only the code for ID. Let us know the unit type and 3 digit code stamped on your brass or aluminum cap. We have all coded units in stock. Jaguar 1948 on Dist type Dist# OE unit Code unit Type 1948-50 MKV DVX 40149 400904 OE unit 7 18 12 2 stud 1948-51 2 1/2 ltr DVX 40156 419073 4 12 8 2 stud 1949-53 XK120 7:1 DVX 40198 400850 OE unit 4 23 12 2 stud 1949-57 XK120 & 140 8:1 1949-54 DVX 40199 400904 OE unit 7 18 12 2 stud 1949-57 XK120 & 140 8:1 1955-57 DVX 40199 419066 7 18 12 2 stud 1953-54 XK120 7:1 DVX 40249 400850 4 23 12 2 stud 1951-53 3 1/2 ltr, MKV, MKVII 7:1 DVX 40263 419309 5 17 10 2 stud 1951-53 3 1/2 ltr MKV, MKVll 8:1 DVX 40276 419309 5 17 10 2 stud 1955-57 XK140 Special EQ 8:1 DVX 40293 419066 7 18 12 2 stud 1954-58 3 1/2 ltr STD, MKV, MKVII DVX 40372 419077 4 18 12 2 stud 1955-57 XK140 7:1,3 1/2 ltr, STD, MKV, MKII, Comp DVX 40435 421710 4 10 8 2 stud 1955-58 XK140 8:1, 3 1/2 ltr MKII, Comp 8:1 DVX 40436 421720 3 13 12 2 stud 1956-62 2.4 ltr 8:1 Saloon DM 40528 423461 3 13 12 Hex / pin 1957-63 2.4 ltr 7:1 Saloon DM 40557 424374 5 14 11 Hex / pin 1957-59 MKVIII 8:1, XK150 8:1 DM 40576 421027 6 17 9 Hex / pin 1961-63 XK150 8:1, 3.4 & 3.8 8:1 & MKII Saloon DM 40576 54413188 6 17 9 screw type pin 1957-63 XK150 7:1, 3.4 Saloon, MKVII & MKIII 7:1 DM 40578 424374 5 14 11 Hex / pin 1959-61 1959-61 XK150 9:1,S & 3.4 XK150 9:1,S & 3.4 DM DM 40616 40616 423461 421642 OE unit 3 13 12 4 13 12 Hex / pin Hex / pin 1959-60 XK150 9:1, S, 3.4 & 3.8, Saloon, 59 MKII DM 40617 54410415 7 14 8 Hex / pin 1961-63 XK150 9:1, S, 3.8 9:1, Saloon, 59 MKII DM 40617 54412348 7 14 8 screw type pin 1961 XKE 3.8, From Eng R1001-R9999 & RA1001-RA161 DM 40617 54410415 7 14 8 Hex / pin 1959-60 XK150 3.8 8:1, MKI, MKIV 3.8 8:1 DM 40640 54410709 8 18 7 Hex / pin 1961 XK150 3.8 8:1,MK, MKIV 3.8 8:1I DM 40640 54412438 8 18 7 screw type pin 1959-61 MKIX 9:1 DM 40665 421189 5 12 8 Hex / pin 1961-65 XK150 3.8 9:1, Saloon MKII DM 40665 54412033 5 12 8 screw type pin 1961-63 XK150 S 3.4 8:1 DM 40670 423461 3 13 12 Hex / pin 1962-63 MKX Saloon DM 40828 54412348 7 14 8 screw type pin 1963-65 2.4 7:1, MKII 22D6 40883 54410946 5 14 11 screw type Replacement 22D6 40883 54414517 5 14 11 push on 1963-65 2.4 8:1 22D6 40884 54411979 3 13 12 push on 1963-65 3.4, 3.8, 7:1, 8:1 & S 22D6 40885 54412145 8 18 7 push on 1965 3.4, 3.8, 7:1, 8:1, 9:1 & S 22D6 40886 54411969 5 12 8 push on 1963-64 XKE from Engine RA 1382 on 22D6 40887 54415894 7 14 8 push on 1963-64 MKX Saloon 22D6 40888 54415894 7 14 8 push on 1965-69 XKE 4.2, MKII 4.2, 420 & G, XJ6 22D6 41060 54415894 7 14 8 push on 1965-66 4.2 MKII 7:1 22D6 41061 54410946 5 14 11 screw type Replacement 22D6 41061 54414517 5 14 11 push on 1965-66 2.4 MKII 8:1 22D6 41062 54411979 3 13 12 push on 1965-68 3.4, 3.8, 7:1, 8:1 MKII , S & 340 22D6 41063 54412145 8 18 7 push on 1965-68 3.4, 3.8, 9:1 MKII, S, 340 22D6 41064 54411969 5 12 8 push on 1968-70 420, 420G, XJ6 4.2 Automatic 22D6 41065 54415894 7 14 8 push on 1969 Distributor Micro-adjuster Blank 22D6 41060 54413770 Blank Micro-adjuster 1969 E Type 4.2 22D6 41207 54413770 Blank Micro-adjuster 1968 240 MKII 25D6 41208 54415088 5 17 10 push on 1970 XJ6 4.2 22D6 41296 54413770 Blank Micro-adjuster 1970 XJ6 4.2 22D6 41297 54413770 Blank Micro-adjuster 1970 XJ6 2.8 25D6 41275 54411985 5 13 10 push on 1971-72 XKE Series III V12 36DE12 41321 54422166 2 7 8R vacuum on casting 1969-71 XKE Series II 2+2 STD trans and XJ6 22D6 41322 54422224 4 8 5R vacuum on casting 1969-71 XKE Series II 2+2 Automatic and XJ6 4.2 22D6 41323 54422224 4 8 5R vacuum on casting 1969 -73 25D6 41366 54413772 5 16 8/2 8 5R duel unit 1973 22D6 41367 54415894 7 14 8 push on 1973 22D6 41368 54415894 7 14 8 push on 1973 XJ12 36DE12 41387 54424317 5 8 7R push on 1973-74 XJ6 22D6 41388 54424370 5 8 4R vacuum on casting 1973-74 XJ6 US 22D6 41523 54424370 5 8 4R vacuum on casting 1972-75 XKE Series III V12 36DE12 41387 54424317 5 8 7R vacuum on casting 1977 XJS 36DE12 41591 54424317 5 8 7R vacuum on casting 1975 XJ6 45DE6 41617 54427371 5 8 4R vacuum on casting 1975 XJS V12 36DE12 41622 54427091 6 10 4 cap / link 36DE12 41640 54427091 6 10 4 cap / link 36DE12 41641 54427091 6 10 4 cap / link 1976-77 XJ6 45DE6 41649 54429113 7 12 9 cap / link 1976-77 XJ12 XJS 36DE12 41677 54429459 6 10 8 cap / link 1976-79 Later Fed XJ12 / XJS ENG # XJ12-7P37048- on 36DE12 41742 54429459 6 10 8 cap / link 1978-79 XJ6 45DE6 41745 54400410 need code and type 1978-79 Cal XJ12 ENG 36DE12 41770 54429628 6 10 4 5 8 7R NA 1976-80 XJ6 1976-80 RTC1489 / AAU6704 45DM6 41798 54401709 4 8 5 tin XJ6 1976-80 45DM6 41817 54401708 7 12 9 tin XJ6 1976-80 RTC1489 / AAU6704 45DM6 41819 54401709 4 8 5 tin 1980-83 XJS 8S11262 on 36DE12 41825 54401887 5 15 12 cap link 1981-89 XJS V12 Original unit w/ adjustable limit 36DM12 41879 54405202 5 15 12 cap link Note OE 54405202 set to 8 degrees advance. Range from 8 to 12 degrees with adjustable advance as original 1981-89 XJS V12Superseded to JLM519 replacement factory unit 36DM12 41879 54402504 5 15 12 cap / link 1981-82 XJ6 45DM6 41886 54402900 4 8 8 tin 1983 XJ6 45DM6 41912 54402900 4 8 8 tin 1984-86 XJS XJC 45DM6 41922 54403581 4 10 6 tin Austin Healey 100-4 to BJ8 Dist type Dist# OE unit Code unit Type 1954-56 1004 DM 40320 420006 7 18 12 Hex pin 1954-56 Later 100-4 DM 40495 421943 7 18 12 Hex spring 1956 100-M DM 40422 420755 5 17 10 Hex pin 1956 Later 100-M DM 40520 421944 5 17 10 Hex spring 1957-62 100-6 to BT7 29FH3562 DM 40532 421189 5 12 8 Hex pin " " DM 40581 421189 5 12 8 Hex pin " " DM 40662 421189 5 12 8 Hex pin 1963-68 BT7 & BJ8 from 29FH3563 25D6 40920 54413360 5 12 8 screw type 1963-68 BT7 & BJ8 from 29FH3563 Later BJ8 25D6 40966 54411969 5 12 8 push on TR2, TR3, TR4, TR5,TR6 1954-56 TR2 DM 40403 421221 4 11 7 Hex pin 1956-61 TR3 DM 40480 421953 4 11 7 Hex spring 1960-62 TR3 DM 40698 54411480 4 11 7 screw type 1963-64 TR3-TR4, 86mm DM 40735 54413565 2 6 3 screw type Replacement unit for 54413565 screw fitting DM 40735 54415328 2 6 3 push on Replacement distributor 25D4 41264 54415625 5 11 8 push on 1960-62 with Vanguard engine DM 40708 54411239 7 18 8 screw type Replacement distributor 25D4 40783 54412170 5 11 7 screw type 1963-67 TR4 and TR4A High compression TR4 and TR4A High Compression Replacement unit push on hose 25D4 25D4 40795 40795 54413565 54415328 2 6 3 2 6 3 screw type push on TR4 and TR4A Low compression 25D4 40842 54411588 5 11 7 screw type Replacement unit 25D4 40842 54412170 5 11 7 push on 1963-67 TR3 and TR4 special order 83mm 25D4 40850 54411462 4 7 7 screw type 1964-67 25D4 40927 54415926 6 17 7 push on 1968 TR250 anti pollution early distributor 22D6 41202 54411985 5 13 10 push on Later 41202 w/ advance & retard 22D6 41202 54415212 3 7 8 push on Retard for above early 41202 22D6 41202 54419350 3 8 5 R push on 1969-71 TR250 and TR6 Later distributor 22D6 41202 54415212 3 7 8 push on O.E. unit found on 22D6 41202B 54420217 4 7 8 push on Retard for above later 41202 & 41202B 22D6 41202B 54420219 3 10 8 R push on 1968 TR4A Europe 25D4 41212 54418074 4 14 8 push on 1968-69 TR250 & TR6 Micro-adjuster Blank 22D6 41219 54413770 BLANK Micro-adjuster 1969-71 TR6 22D6 41306 54415212 3 7 8 push on Retard for above 41306 22D6 41306 54420219 3 10 8 R push on 1971-73 TR6 22D6 41352 54423098 2 4 4R push on 22D6 41385 54424200 3 10 7R push on 22D6 41558 54424200 3 10 7R push on 1973-76 TR6 22D6 41558 54429013 3 10 7R push on 22D6 41558 54400201 3 10 7R push on 1971-76 TR6 Special Advance unit for retard type distributors Use rear carburetor ported vacuum. 41352, 41385, 41558 22D6 01816 adv 6 18 10 push on 41352, 41385, 41558 22D6 01315 adv 5 13 10 push on Herald & 2000 1960 Sedan DM4 40637 421957 5 13 10 Hex spring 1961-63 later DM4 40637 54411230 5 13 10 screw spring 1960 Coupe & conv DM4 40638 54410450 4 18 12 Hex spring 1961 later DM4 40638 54411589 4 18 12 screw spring 1961 S1000 LC DM4 40658 54411101 3 13 12 screw spring 1961 T 1200 HC DM4 40743 54413516 3 18 7 screw spring 1961 T 1200 LC DM 40755 54414263 4 13 12 screw spring -1963 S1000 25D4 40788 54411230 5 13 10 screw spring 1964-66 1200 twelve fifty 25D4 40791 54413516 3 18 7 push on 1964-65 1200 high performance special order 25D 40847 54414923 4 8 5 push on 1963 Vitesse 25D6 40865 54415212 3 7 8 push on 1964 Vitesse 22D6 40961 54415212 3 7 8 push on 1966 2000 25D4 40967 54411985 5 13 10 push on 1956-57 TR10 DM 40478 421958 4 12 8 Hex spring 1958-59 TR10 DM 40598 421957 5 13 10 Hex spring Spitfire and GT6 1964 Spitfire alternative 22D4 40902 54415011 6 18 10 screw type 1975 1500 Spitfire 23D4 41645 54427198 5 10 6R vacuum on casting 1976 45DE4 41646 54427198 5 10 6R vacuum on casting 45DM4 41805 54427198 5 10 6R vacuum on casting 45DM4 41808 54427198 5 10 6R vacuum on casting 1975-76 1500 Spitfire 45DE4 41593 54426551 2.5 15 6R vacuum on casting 45DE4 41656 54426551 2.5 15 6R vacuum on casting 1977-80 1500 Spitfire 45DE4 41697 54429788 5 10 11 push on 1977-79 1500 Spitfire 45DE4 41698 54429508 5 10 6R vacuum on casting 1967-71 GT6 with Lucas distributor 22D6 41168 54418973 6 18 10 vacuum on casting TR7& TR8 47DE4 41601 54427198 5 10 6R vacuum on casting 47DE4 41603 54427198 5 10 6R vacuum on casting 1978-80 35DE8 41682 54423985 5-17-8/2-8-6R 1977-79 47DE4 41700 54429508 5 10 6R vacuum on casting 1980-81 35DE8 41794 54429985 5 17 8 Note 41805, 41808, 40189, 41810, 41811 45& 47DM4 54401650 5 10 6R vacuum on casting Stag 1970 35D8 41276 & 41336 54421965 6 20 7 Tin unit 1971 35D8 41337 54422902 6 20 7/1 12 8R 1972-73 35D8 41384 54424241 4 10 7R vacuum on casting Stag Stag 35D8 35D8 41500 41525 54424241 54425692 4 10 7R 5 11 6 vacuum on casting Tin unit 1973 MGA - MGB Dist type Dist# OE unit Code unit Type 1955-61 MGA DM 40488 423284 7 14 10 Hex pin DM 40510 423438 7 14 10 Hex spring 1961-62 MGA DM 40510 54411301 7 14 10 screw type DM 40761 54411301 7 14 10 screw type 1963-69 MGB 25D4 40897 54411230 5 13 10 screw type 1964-69 MGB 25D4 40916 54411480 4 11 7 screw type 25D4 41156 54411480 4 11 7 screw type 1967-69 MGB 25D4 41155 54411230 5 13 10 screw type Replacement 25D4 41155 54411985 5 13 10 push on 1969 MGB 25D4 41210 54411100 5 12 6 screw type 1968-69 MGB CAV book CCE900/68 & 69 OE unit 25D4 41220 54411333 5 11 7 screw type Later listing 25D4 41220 54411090 5 11 8 screw type 1969 MGB 1969 changed to, 25D4 41220 54411100 5 12 6 screw type 1969 MGB 25D4 41264 54415625 5 11 8 push on 1970-71 MGB 25D4 41288 54411985 5 13 10 push on 1970 MGB O. E. unit CAV 1970 book CCE900/70 25D4 41290 54411480 4 11 7 screw spring 1970 MGB automatic 25D4 41156 54411480 4 11 7 screw type 1971 MGB 25D4 41339 54414868 7 13 5 push on 1972 MGB 25D4 41370 54423989 7 13 3 push on 1973-74 MGB New center hose, improved diaphragm 25D4 41491 54425359 10 15 5 push on 1975 MGB 45D4 41599 54425516 10 15 5 push on 1977-80 MGB 45DE4 41693 54429339 3 11 12 push on changed to 45DE4 41693 54429506 5 11 7 push on 1977-79 MGB 45DE4 41695 54429506 5 11 7 push on changed to 45DE4 41695 54429699 5 11 7 tin unit 1977-80 MGB 45DM4 41813 54428147 3 11 12 tin unit 1977-80 MGB 45DM4 41814 54424165 5 11 7 tin unit 1980 MGB 45DM4 41851 54428147 3 11 12 tin unit 1980 MGB MGB V8 45DM4 35D8 41853 54424165 54424497 5 11 7 5 17 8 tin unit Tin unit 1968-69 MGC 25D6 41201 54415328 2 6 3 push on 1969 MGC & MGCGT 25D6 41224 54418274 5 8 3 push on 1958-60 Bug Eye DM 40561 421955 5 12 6 Hex spring 1961 Bug Eye DM 40561 54411100 5 12 6 screw type 1959-60 Bug Eye DM 40643 421944 5 17 10 Hex spring 1961 Bug Eye Later DM 40643 54411233 5 17 10 screw type 1960 Spriget DM 40648 54411478 7 13 5 screw type 1960-61 Special order DM 40656 425700 7 14 8 Hex spring 1961-62 MKII DM 40752 54411100 5 12 6 screw type 1962 MKI 25D4 40773 54411100 5 12 6 screw type 1963-65 Spriget 25D4 40853 54411462 4 7 7 screw type 1965-67 1098 25D4 40919 54411354 4 13 10 screw type 1968-69 1275 25D4 41198 54415500 5 8 3 screw type 1968-69 1275 25D4 41229 54415500 5 8 3 screw type Later Replacement 41229 54418274 5 8 3 push on 1968 Catalog # 841/68 Europe 41229 54419606 3 10 10 screw spring 1969-70 1275 25D4 41270 54418274 5 8 3 push on 1969-71 1275 25D4 41271 54418274 5 8 3 push on 1972 1275 25D4 41369 54423851 4 9 8 push on 1973-74 1275 New center hose, improved diaphragm 25D4 41400 54425359 10 15 5 push on 1975-76 Midget 1500 45DE4 41593 54426551 2.5 15 6R vacuum on casting 1975-76 Midget 1500 41645, 41646 45DM4 54427198 5 10 6R vacuum on casting 1975-76 Midget 1500 45DE4 41656 54426551 2.5 15 6R vacuum on casting 1977-80 Midget 1500 45DE4 41697 54429788 5 10 11 push on 1977-79 Midget 1500 45DE4 41698 54429508 5 10 6R vacuum on casting Midget 1500 41805 & 41808 45DM4 54427198 5 10 6R vacuum on casting 40853 MG 1100 25D4 40853 54411462 4 7 7 screw type 1954-55 Metropolitan DM 40284 420755 5 17 10 Hex pin 1956-59 DM 40499 421947 6 14 8 Hex spring 1960-61 DM 40499 54411241 6 14 8 screw type 1958-59 DM 40600 421944 5 17 10 Hex spring 1960-61 DM 40600 54411233 5 17 10 screw type 1954-55 Magnette DM 40414 421456 3 9 8 Hex pin 1956 DM 40509 421954 3 9 8 Hex spring 1957 ZA DM 40510 423438 7 14 10 Hex spring 1958-59 ZB DM 40587 421947 6 14 8 Hex spring 1959-61 DM 40644 54411241 614 8 screw type 1962-67 MKIV 25D4 40823 54411587 6 1612 screw type 1968 MKIV 25D4 41156 54411587 6 16 12 screw type 1951-54 Morgan DV 40201 419070 7 18 12 2 stud 1955-57 DM 40403 421221 4 11 7 Hex pin 1951-54 PLus 4 DM 40479 525682 7 18 12 Hex spring 1958-60 Early DM 40480 421953 4 11 7 Hex spring Later DM 40480 54411480 411 7 screw type 1958-60 DM 40559 54411239 7 18 8 screw type 1955-60 TR2 engine DM 40698 421953 4 11 7 Hex spring DM 40735 54413565 2 6 3 screw type 1960-62 Vanguard engine DM 40708 54411239 7 18 8 screw type 1963-67 25D4 40795 54413565 2 6 3 screw type 1963-67 25D4 40842 54411588 5 11 7 screw type 1963-67 25D4 40850 54411462 4 7 7 screw type 1966 Four Four OE type 25D4 40857 54415088 5 17 10 push on 1966 Four Four Replacement 25D4 40857 54415926 6 17 7 push on 1963-67 4 plus 4 with English Ford engine 25D4 40984 54415089 5 16 12 screw type 1964-67 Four Four GT 25D4 40927 54415926 6 17 7 push on 1967 25D4 41146 54415926 6 17 7 push on Rover 1948 on Dist type Dist# OE unit Code unit Type 1948 DVX 40103 400904 7 18 12 2 stud “75” DVX 40105 400904 7 18 12 2 stud “60” DVX 40154 400904 7 18 12 2 stud 1949 1949 "75" "75" Later unit number DVX DVX 40155 40155 400904 419066 7 18 12 7 18 12 2 stud 2 stud 1950-52 "75" DVX 40200 419077 4 18 12 2 stud 52-53 52-53 "75" "75" DVX DM 40230 40283 400904 419681 419066 4 18 12 2 stud Hex pin 1953-54 Land Rover DM 40330 420006 7 18 12 Hex pin 1954-55 "90" DM 40408 421362 4 17 6 Hex pin 1954-59 "60" DM DM 40454 40410 422673 419681 5 17 10 4 18 12 Hex pin Hex pin 1955-59 "75" DM 40459 421362 4 17 6 Hex pin "75" Replacement DM 40459 54413040 4 17 6 screw type pin 1956-59 "90" DM 40485 419681 4 18 12 Hex pin 1948-59 "60" and Land Rover DM 40504 425682 7 18 12 Hex spring "60" and Land Rover Replacement DM 40504 54411727 7 18 12 screw type 1957-59 "105" DM 40577 419681 4 18 12 Hex pin 1959-61 3 LTR DM 40613 421362 4 17 6 Hex pin 1960 3 LTR 7:5 DM 40559 54413040 4 17 6 screw type pin 1959-62 "80" and Land Rover DM 40609 54410164 4 18 12 Hex spring "80" and Land Rover Replacement DM 40609 54411598 4 18 12 screw type 1960-62 "100" and 1960 3 LTR 8:75 DM 40613 421362 4 17 6 Hex pin 1960-62 "100" and 1960 3 LTR 8:75 DM 40613 54413040 4 17 6 screw type pin 1955-61 "75" and 3 LTR 7:5 DM 40720 421363 4 17 6 Hex pin 1960-61 3 LTR 7:5 DM 40720 54413040 4 17 6 screw type pin 1957-62 "100" and "105" DM 40721 421362 4 17 6 Hex pin 3 LTR 8:75 DM 40721 54413040 4 17 6 screw type pin 1962-63 Land Rover DM 40817 54411598 4 18 12 screw type 1967 Station Wagon 25D6 40894 54413882 4 17 6 screw type Replacement 25D6 40894 54414411 4 17 6 push on 1963-65 3 LTR High Compression STD trans 25D6 40895 54413882 4 17 6 screw type Replacement 25D6 40895 54414411 4 17 6 push on 1963-65 3 LTR Low Compression Automatic trans 25D6 40896 54411598 4 18 12 screw type Replacement 25D6 40896 54413308 4 18 12 push on 1964-68 Land Rover 2.6 25D6 40923 54413882 4 17 6 screw type Later number Land Rover 2.6 25D6 40923 54414411 4 17 6 push on 1968 Land Rover station Wagon, wagon 11A 2.6 25D6 40923 54413602 3 7 8 screw spring 1964 "2000" 25D4 40933 54411598 4 18 12 screw type 1964-65 Land Rover 25D4 40944 54411598 4 18 12 screw type 1965 "2000" 25D4 40992 54413602 3 7 8 screw type 1965 "2000" 25D4 41036 54413602 3 7 8 screw type 1966 2000 25D4 41085 54411462 4 7 7 screw type 1966-67 2000 22D6 41119 54411589 4 14 8 screw typy 1968 2000 later 22D6 41119 54418074 4 14 8 push on 1967 25D4 41146 54415926 6 17 6 push on 1967-68 2000 TC 25D4 41199 54411983 4 7 6 push on 1968-69 2000 25D4 41200 54418074 4 14 8 push on 25D4 41216 54411983 4 7 6 push on 1969 Land Rover 25D4 41240 54411598 4 18 12 screw spring 1970-71 3500 S 35D8 41277 54421060 2 4 4R vacuum on casting 1970 2000 and automatic 25D4 41307 54421817 8 20 8 push on 1970 2000 TC 25D4 41309 54411983 4 7 6 push on 1970-71 Land Rover 25D4 41315 54411598 4 18 12 screw spring 1970 25D4 41316 54411817 8 20 8 push on 1971 2000 TC 25D4 41319 54421494 4 7 6/1 4 5R 1972 Series III 25D4 41353 54423128 1 3 3R push on 1964-68 2.25 LTR 25D4 41363 54411598 4 18 12 screw type 1969-74 2.25 LTR 25D4 41527 54423128 1 3 3R push on Rover V8 with 35D8 using 5 17 8 Advance 35D8 54429985 5 17 8 push on 1980-81 Rover V8 Rover 3500 V8 with 35D8 using 5 17 8 Advance Rover V8 Early Rover V8 OE unit 35D8 35DE8 35D8 35D8 41681 41779 41873 54423981 54429985 54423981 54424497 5 17 8/2 8 6R 5 17 8 5 17 8/2 8 6R 5 17 8 push on push on push on Tin unit Austin Morris Mini 1950-51 A40 and A70 DVX 40257 419171 4 19 12 2 stud 1951-52 DVX 40258 419171 4 19 12 2 stud 1952-54 A40 DM 40284 420755 5 17 10 Hex pin 1952-54 A30 DM 40299 419832 3 13 12 Hex pin 1960 DM 40308 421189 5 12 8 Hex pin 1949-52 A90 DM 40320 420006 7 18 12 Hex pin 1955-56 A50 DM 40427 420537 6 14 8 Hex pin 1956-59 A90, A95, A105 DM 40442 421189 5 12 8 Hex pin 1960 DM 40472 421189 5 12 8 Hex pin 1952-59 A30, Minor and Morris DM 40494 421947 3 13 12 Hex spring 1960-61 Morris DM 40494 54411101 3 13 12 screw type 1960 DM 40496 421946 6 16 12 Hex spring 1952-54 A40 DM 40497 421944 5 17 10 Hex spring 1957-61 A55, Morris, Austin DM 40499 421947 6 14 8 Hex spring 1960-62 A55, Morris, Austin DM 40499 54411241 6 14 8 screw type 1952-53 Austin A40 Sports DM 40538 421940 4 19 12 Hex spring 1952-55 Austin A70 DM 40539 421940 4 19 12 Hex spring 1960 DM 40556 424340 5 12 8 1957-61 A35, A40 HC and Morris 1000 DM 40561 421955 5 12 6 Hex spring Mini and A2S6 DM 40561 54411100 5 12 6 screw type 1957-60 A40, A35 LC and Mini DM 40569 423438 7 14 10 Hex spring 1960-62 Morris 1000 DM 40569 54411301 7 14 10 screw type 1957-60 A55, Austin, Morris DM 40570 421943 3 13 12 Hex spring Replacement DM 40570 54411101 3 13 12 screw type 1958-60 Austin DM 40583 425682 7 18 12 Hex spring 1958-62 A55 DM 40600 421944 5 17 10 Hex spring Replacement DM 40600 54411233 5 17 10 screw type 1954-62 A55 LC and Morris DM 40624 421947 6 14 8 Hex spring Replacement DM 40624 54411241 6 14 8 screw type 1957-59 Austin DM 40635 421189 5 12 8 Hex pin 1959-60 A55 HC, Morris DM 40643 421944 5 17 10 Hex spring 1960-62 A55 HC, Morris DM 40643 54411233 5 17 10 screw spring 1959-61 850 Mini, Austin, Morris DM 40648 54411478 7 13 5 screw type 1960-61 A99 DM 40661 421189 5 12 8 Hex pin Replacement DM 40661 54412033 5 12 8 screw type pin 1960 DM 40673 421189 5 12 8 Hex pin 1960-61 A40 LC DM 40674 423438 7 14 10 Hex spring Replacement DM 40674 54411301 7 14 10 screw type 1960-62 A40 HC, A2S6 DM 40675 421955 5 12 6 Hex spring Replacement DM 40675 54411100 5 12 6 screw type 1960 DM 40705 421945 4 13 12 Hex spring 1959-62 850 Mini, Austin, Morris DM 40707 54411090 5 11 8 screw type 1959-62 850 Mini, Austin, Morris DM 40752 421955 5 12 6 Hex spring Replacement DM 40752 54411100 5 12 6 screw type 1962 Mini DM 40760 54414316 3 8 7 screw type 1960-70 A35, Mini and Moke 25D4 40767 54411090 5 11 8 screw type Replacement 25D4 40767 54415625 5 11 8 push on 1963-69 Mini, Moke, Minor 25D4 40768 54411478 7 13 5 screw type 1962 Morris 25D4 40770 54411100 5 12 6 screw type 1962 A35, A40 LC 25D4 40771 54411301 7 14 10 screw type 1962 A35, A40 HC 25D4 40772 54411100 5 12 6 screw type 1962-64 Mini 25D4 40774 54414316 3 8 7 screw type 1962 A110 25D6 40816 54412033 5 12 8 screw type pin 1962-69 Morris, A60 LC 25D4 40821 425682 7 18 12 Hex spring 1962-70 Morris, A60 HC 25D4 40822 54413882 4 17 6 screw type 1963-66 Morris 1000, A35, A40 HC 25D4 40849 54414973 6 13 7 screw type 1963-65 A110 25D6 40866 54413602 3 7 8 screw type 1966-68 A110 25D6 40866 F 54418274 5 8 3 push on 1963-64 Mini LC 25D4 40873 54411462 4 7 7 screw type 1964-66 A35, A40 25D4 40899 54411233 5 17 10 screw type 1964-70 FL2 Taxi 25D4 40903 425682 7 18 12 Hex spring 1963-66 25D4 40919 54411354 4 13 10 screw type 1964-67 25D4 40931 54411333 5 11 7 screw type 1968-69 Mini 1100 25D4 40931 54412170 5 11 7 push on 1965-69 Mini 25D4 40955 54414316 3 8 7 screw type 1965-69 Mini 25D4 40958 54413602 3 7 8 push on 1965-67 1800 HC 25D4 40969 54416354 3 10 10 push on 1965-68 1800 HC 25D4 40970 54413360 5 12 8 screw type Replacement 25D4 40970 54411969 5 12 8 push on 1970 Mini 25D4 41007 54411333 5 11 7 screw type Replacement 25D4 41007 54412170 5 11 7 push on 1967-69 A40, 1100 & 1300 LC 25D4 41025 54411233 5 17 10 screw type Replacement 25D4 41025 54415088 5 17 10 push on 1963-67 Mini 25D4 41026 54411478 7 13 5 screw type 1970 Mini, 1100 & 1275 25D4 41030 54411333 5 11 7 screw type Replacement 25D4 41030 54412170 5 11 7 push on 1968-69 Mini, 1800 HC 25D4 41034 54416354 3 10 10 push on 1966-67 Morris / Minor 1100 HC 25D4 41124 54415500 5 8 3 screw type 1966 Austin 1100 25D4 41134 54411589 4 18 12 screw type 1967-70 1100 HC 25D4 41142 54414973 6 13 7 screw type 1968-69 1100 & 1300 HC 25D4 41147 54414973 6 13 7 screw type 1967-69 A60 LC and Morris 25D4 41149 425682 7 18 12 Hex spring 1967-69 A60 HC and Morris 25D4 41150 54413882 4 17 6 screw type 1967-69 FL2 Taxi 25D4 41157 425682 7 18 12 Hex spring 1967-68 A60 25D4 41165 425682 7 18 12 Hex spring 1967-70 1100 Automatic 25D4 41181 54411101 3 13 12 push on 1972 1622 25D4 41187 54412170 5 11 7 push on 1968-70 3 LTR 25D6 41201 54415328 2 6 3 push on Mini 25D4 41212 54418074 4 14 8 push on 1968-69 1300 HC Automatic 25D4 41214 54419606 3 10 10 screw type 1969 1300 LC 25D4 41215 54419606 3 10 10 screw type 1968-69 1300 USA 25D4 41220 54411333 5 11 7 screw type Replacement 25D4 41220 54412170 5 11 7 push on 1968-69 1300 LC 25D4 41233 54411587 6 16 12 screw type 1969-70 1800 HC 25D4 41234 54411969 5 12 8 push on 1969-70 Austin, Morris, S, 1300 GT 25D4 41238 54412170 5 11 7 push on 1969-70 Mini 1100 Automatic 25D4 41242 54410674 3 15 9 push on 1969-70 Maxi 25D4 41246 54411981 6 14 8 push on 1969 Mini 25D4 41249 54414868 7 13 5 push on 1969 Moke 25D4 41250 54415625 5 11 8 push on 1969-70 Mini 25D4 41251 54410674 3 15 9 push on 1969 Mini 1100 25D4 41254 54412170 5 11 7 push on 1969 Mini 25D4 41255 54415212 3 7 8 push on 1969 Mini 25D4 41256 54415212 3 7 8 push on 1969-70 1275 and 1300 Automatic HC 25D4 41257 54416354 3 10 10 push on 1972 1300 France 25D4 41258 54416354 3 10 10 push on 1969-70 1300 LC 25D4 41259 54415089 5 16 12 push on 1969-70 1100 & 1300 HC, 1800 LC 25D4 41260 54412170 5 11 7 push on 1969-70 1100 Automatic 25D4 41261 54411979 3 13 12 push on 1969-70 1100 & 1300 LC, 1098 25D4 41262 54415088 5 17 10 push on 1969-71 1300 and america 25D4 41264 54415625 5 11 8 push on 1970 1098 & 1100 HC 25D4 41269 54418274 5 8 3 push on 1970 Morris LC 25D4 41279 54419606 3 10 10 screw type Replacement 25D4 41279 54416354 3 10 10 push on 1972 Austin / Morris pick up 25D4 41279 54419606 3 10 10 screw type 1972 van and pick up 25D4 41286 54418074 4 14 8 push on 1972 25D4 41338 425682 7 18 `12 Hex / spring 1972 Maxi 1500 LC 25D4 41391 54420500 4 12 8 push on 1972 Mini 1000 Man trans Canada 25D4 41395 54418274 5 8 3 push on Alvis Dist type Dist# OE unit Code unit Type 1950-52 DVX 40207 A,B 418958 4 23 12 2 stud DVX 40207 D,E 419066 7 18 12 2 stud 1951-53 TA & TB21 DVX 40216 419070 7 18 12 2 stud 1954 TC21 DVX 40411 419070 7 18 12 2 stud 1958-60 TD21 DM 40641 424277 7 18 12 Hex Alfa Giulietta, Sprint, Spyder, Berlina 753CI DM 40431 423380 11 16 6 Hex pin " " DM 40649 54410912 11 16 6 screw type pin Allard 1953-54 21C DM 40244 419254 3 15 9 Hex pin 1953-54 21Z DM 40252 419480 5 20 12 Hex pin 1953-55 DM 40512 421937 3 15 9 Hex spring Replacement DM 40512 54411479 3 15 9 screw type Aston Martin 1951-59 DB2, DB3, DB4, S & MKIII Saloon DVX 40125 E,F 419073 4 12 8 2 stud DVX 40264 A,B 419073 4 12 8 2 stud 1952 Lagonda 2 1/2 LTR DVX 40375 419073 4 12 8 2 stud DVX 40484 A 419073 4 12 8 2 stud 1959-60 DB4 DM 40671 A 419681 4 18 12 Hex pin 1960 DB4 GT DM 40697 A 54412119 4 18 12 screw type pin 1966-68 DB6 DB6 Vantage and Volante 25D6 41083 54413770 BLANK Micro-adjuster 1970-71 DB5 25D6 41247 54414923 4 8 5 push on 1969 DBS 35D8 41311 54413630 5 9 5R vacuum on casting 1971 35D8 41359 54422224 4 8 5R push on 1971-74 DBS V8 35D8 41383 54413630 5 9 5R vacuumon casting 54423626 1975-76 OE Tin Unit 35D8 41606 54428626 2 5 5R Tin unit Marina Austin / Morris 1972 1.8TC 25D4 41032 54414316 3 8 7 screw spring 1972 1.8 25D4 41234 54411969 5 12 8 push on 1972 25D4 41371 54414721 5 10 5 push on 1973 25D4 41401 54425359 10 15 5 push on Bentley 1965-66 All models 20D8 40898 54415488 8 20 8 tapered casting / screw 1968-69 T Series 20D8 41203 54415488 8 20 8 tapered casting / screw Later 20D8 with hose fitting 41203 54424997 8 20 8 tapered casting/push on 1970-71 T Series 35D8 41300 54421585 4 12 9R vacuum on casting 1966-69 unit installs into aluminum 35D bracket 35D8 41521 54425973 8 20 8 push on 1970-72 unit installs into aluminum 35D bracket 35D8 41379 54422110 4 12 9 push on 1973 unit installs into aluminum 35D bracket 35D8 41397 54422110 4 12 9 push on 1973-74 unit installs into aluminum 35D bracket 35D8 41530 54425859 4 7 5 push on 1975 OE Tin Retard unit 35D8 41606 54428626 2 5 5 Tin unit Lotus 1963-67 Super Seven Factory O.E. work shop unit 25D4 40984 54415088 5 17 10 push on Replacement 25D4 40984 54415089 5 16 12 push on 25D4 41223 54411983 4 7 6 push on 1969-75 Elan, Europa, S3 & S4 Sprint Plus 2 & 2S O.E. 25D4 41225 54420293 2 4 3 push on Replacement 25D4 41225 54415328 2 6 3 push on 25D4 41584 54427140 4 6 4 push on 1977-80 45D4 41626 54428191 4 6 4R push on 1977-79 25D4 41634 54428619 4 6 4R push on Sunbeam 1959-68 1948-50 90 DVX 40114 418958 4 23 12 Hex 2 stud 1951-53 90 DVX 40217 419189 7 18 8 Hex 2 stud 1954 90 & Alpine DM 40396 420918 5 14 11 Hex pin 1955-58 90 & Alpine DM 40430 420918 5 14 11 Hex pin 1956-59 Rapier DM 40490 423389 5 11 7 Hex spring Replacement DM 40490 54411333 5 11 7 screw type 1959-61 Rapier & Alpine DM 40683 54411463 4 8 5 screw type 1959-63 Alpine MKII DM 40766 54411463 4 8 5 screw type 1963-64 MKIII 25D4 40799 54411463 4 8 5 screw type 1963-65 Alpine Rapier Scaptre MKIV 25D4 40942 54414973 6 13 7 screw type 1966-68 GT 1.7 25D4 41077 54412923 4 8 5 push on 1966-70 Minx, Arrow 25D4 41043 54412170 5 11 7 push on 1969 Alpine GT 25D4 41077 54414923 4 8 5 push on 1966 Imp 25D4 41122 54418074 4 14 8 push on 1968-70 Alpine Coupe 25D4 41237 54412170 5 11 7 push on 1969 Alpine Coupe 25D4 41291 54414923 4 8 5 push on 1970 Alpine GT 25D4 41267 54414316 3 8 7 screw type replacement 25D4 41267 54415212 3 7 8 push on Humber Super Snipe DVX 40135 418958 4 23 12 Hex 2 stud 1953-54 DM 40401 421189 5 12 8 Hex pin 1955-57 DM 40471 419786 6 14 8 Hex pin Replacement DM 40471 54412958 6 14 8 screw type pin DM 40531 419786 6 14 8 Hex pin Replacement DM 40531 54412958 6 14 8 screw type pin 1959 DM 40601 419890 8 18 7 Hex pin 1959-60 DM 40660 419890 8 18 7 Hex pin later DM 40685 54412438 8 18 7 screw type pin 1962-61 DM 40713 54412438 8 18 7 screw type pin 1962 25D6 40824 54411692 8 18 7 screw type 1963-65 LC 25D6 40900 54412145 6 18 7 screw type 1963-65 HC 25D6 40901 54413565 2 6 3 push on 1966 25D6 41050 54415328 2 6 3 push on Humber Hawk Dist type Dist# OE unit Code unit Type 1951-52 DKY 40218 400881 3 6 8 Hex 2 stud 1953-54 DM 40376 420790 3 6 6 Hex pin 1960 DM 40560 425513 6 14 8 Hex spring 1960 DM 40560 54411241 6 14 8 screw type 1961-63 DM 40723 54411241 6 14 8 screw type DM 40724 54410946 5 14 11 screw type 25D4 40800 54411241 6 14 8 screw type 25D4 40801 54410946 5 14 11 screw type Riley 1953-54 2 1/2 LTR DM 40336 419832 3 13 12 Hex pin 1958 One Point Five DM 40510 423438 7 14 10 Hex spring 1958-59 Two Point Six DM 40581 A 421189 5 12 8 Hex pin 1958-59 One Point Five DM 40587 A,B,D 421947 6 14 8 Hex spring 1960-62 One Point Five DM 40587 D,H 54411241 6 14 8 screw type 1959 Four Sixty Eight DM 40644 A,B 421947 6 14 8 Hex spring 1960 Four Sixty Eight DM 40644 F,H 54411241 6 14 8 screw type 1962 Elf DM 40648 K 54411478 6 14 8 screw type Elf Low grade fuel DM 40707 E 54411090 5 11 8 screw type 1963-66 Elf Low grade fuel 25D4 40767 54411090 5 11 8 screw type 25D4 40767 F 54411333 5 11 7 screw type 1963 Elf 25D4 40768 A 54411478 7 13 5 screw type 1963-65 One Point Five 25D4 40781 B 54411241 6 14 8 screw type 1962-67 Four Seventy Two 25D4 40823 54411587 6 16 12 screw type 1966-67 Kestrel 25D4 40853 54411462 4 7 7 screw type 1965-69 Elf 25D4 40931 D,E,F 54411333 5 11 7 screw type 1968 Kestrel 25D4 41028 54411462 4 7 7 screw type 1968-69 Elf Automatic 25D4 41134 54411589 4 14 8 screw type 1968-69 Four Seventy Two 25D4 41154 54411587 6 16 12 screw type 1968 Kestrel 25D4 41214 54419606 3 10 10 screw type 1969 Kestrel 25D4 41238 54412170 5 11 7 push on 1969 Elf Later Automatic 25D4 41251 54420674 3 13 9 push on 1969 Elf 25D4 41254 54412170 5 11 7 push on Wolseley 1949-54 Six Eighty DVX 40157 A 419066 7 18 12 2 stud 1949-54 Six Eighty DVX 40157 B,D,E 419067 7 15 10 2 stud 1949-53 Four Fifty DVX 40158 419067 7 15 10 2 stud 1953-54 Four Forty Four DM 40355 A 420537 6 14 8 Hex pin 1958 Six Ninety Export DM 40470 A 419681 4 18 12 Hex pin 1958-59 Fifteen Hundred and Fifteen Fifty LC DM 40499 A,B,D 421947 6 14 8 Hex spring 1960-62 Fifteen Hundred DM 40499 D,H 54411241 6 14 8 screw type 1958-59 Fifteen Fifty DM 40570 A,B,D 421941 4 13 12 Hex spring 1958-59 Six Ninety DM 40580 A 421189 5 12 8 Hex pin 1959-60 Fifteen Hundred and Fifteen Sixty LC DM 40624 421947 6 14 8 Hex spring 1961-62 Fifteen Hundred and Fifteen Sixty LC DM 40624 54411241 6 14 8 screw type 1959-61 Fifteen Sixty HC DM 40643 421944 5 17 10 Hex spring 1959-61 Fifteen Sixty HC DM 40643 54411233 5 17 10 screw type 1962 Hornet DM 40648 54411478 7 13 5 screw type 1960 Six Ninety DM 40661 D 421189 5 12 8 Hex pin 1962 Hornet Low grade fuel DM 40707 54411090 5 11 8 screw type 1963-68 Hornet Low grade fuel DM 40767 54411090 5 11 8 screw type 1963 Hornet DM 40768 54411478 7 13 5 screw type 1963-65 Fifteen Hundred and 1965 LC DM 40775 A 54411241 6 14 8 screw type 1964-65 Fifteen Hundred 25D4 40778 54411233 5 17 10 screw type 1964-65 Fifteen Hundred 25D4 40782 A 54411233 5 17 10 screw type 1962 Six One Hundred Ten 25D6 40816 54411969 5 12 8 push on 1962-69 Sixteen Sixty 25D4 40822 54413882 4 17 6 screw type 1966-67 Eleven Hundred 25D4 40853 54411462 4 7 7 screw type 1963-65 Six One Hundred Ten 25D6 40866 54415212 3 7 8 push on 1966-68 Six One Hundred Ten MKII Later 25D6 40866 54418274 5 8 3 push on 1964-69 Hornet 25D4 40931 54411333 5 11 7 screw type 1968 Eleven Hundred 25D4 41028 54411462 4 7 7 screw type 1968 Eightteen Eighty Five 25D4 41034 54416354 3 10 10 push on 1968-69 Hornet Automatic 25D4 41134 54411589 4 14 8 screw type 1968-69 Thirteen Hundred MKII 25D4 41214 54419606 3 10 10 screw type 1969-70 Eightteen Eighty Five 25D4 41234 54411969 5 12 8 push on 1970 Eightteen Eighty Five 25D4 41238 54412170 5 11 7 push on 1969-70 Thirteen Hundred Later 25D4 41242 54420674 3 15 9 push on 1969 Hornet Later Automatic 25D4 41251 54420674 3 15 9 push on 1969 Hornet Later 25D4 41254 54411333 5 11 7 screw type 1970 Thirteen Hundred Automatic 25D4 41257 54416354 3 10 10 push on 1970 Sixteen Sixty 25D4 41282 54414411 4 17 6 push on Daimler SP250 and Limo 20D8 40676 54411675 6 17 9 tapered casting/screw Majestic and Major 20D8 40715 54412403 4 17 6 tapered casting/screw Majestic DM6 40614 423040 3 15 9 Hex pin Saloon DM6 40716 423040 3 15 9 Hex pin 22D6 41367 54411594 7 14 8 push on 1973 22D6 41368 54411594 7 14 8 push on Rolls Royce and Bentley 1963-66 20D8 40898 54415488 8 20 8 tapered casting / screw 1967-69 Silver Shadow and Phantom V 20D8 41203 54415488 8 20 8 tapered casting / screw Later 20D8 with hose fitting 41203 54424997 8 20 8 tapered casting/push on 1970-71 Silver Shadow Phantom V1, Corniche 35D8 41300 54421585 4 12 9R vacuum on casting 1972 Corniche & Silver Shadow 35D8 41379 54422110 4 12 9R unit rebuild only 1973 Corniche & Silver Shadow later 35D8 41530 54425859 4 7 5R Tin unit rebuild only 1977-81 OE Tin Retard unit Camargue, Corniche, Silver Shadow, Phantom 35DE8 41709 54428626 2 5 5 Tin unit 1981-82 Camargue, Silver Spirit, Silver Spur 35DE8 41832 54429817 5 17 6/2 8 6R unit rebuild only Vander Plas Dist type Dist# OE unit Code unit Type 1961 4 ltr Princess DM6 40371 54412348 5 12 8 screw pin 1961 3 ltr Princess DM6 40661 421189 5 12 8 Hex pin 1965-66 Princess 1100 25D4 40853 54411462 4 7 7 screw spring 1963-64 3 ltr Princess MKII 25D6 40866 54415212 3 7 8 push on 1965-66 Princess R 25D6 40882 54416810 6 20 7 screw spring 1967-68 25D6 40949 54415502 7 15 10 screw spring 1968 25D4 41028 54411462 4 7 7 screw spring 1965-66 25D6 41128 54416810 6 20 7 screw spring 1972 25D4 41242 54420674 3 15 9 push on 1972 automatic 25D4 41257 54416354 3 10 10 push on Hillman 1956-60 Minx Husky DM4 40492 421948 5 14 11 Hex spring 1957-59 Minx DM4 40530 423389 5 11 7 Hex spring 1960 Husky HC DM4 40530 54411333 5 11 7 screw spring 1959-60 Minx DM4 40681 423389 5 11 7 Hex spring 1960 Husky Series II Minx LC DM4 40682 421948 5 14 11 He spring 1960 Husky DM4 40530 423389 5 11 7 Hex spring 1960 Husky Series II Minx HC DM4 40681 423389 5 11 7 Hex spring DM4 40681 54411333 5 11 7 screw spring 1963 Husky Minx 25D4 40798 54411333 5 11 7 screw spring 1964-65 Husky Minx 25D4 40934 54412170 5 11 7 push on 1964-65 Imp 25D6 40905 54415625 5 11 8 push on Ford 1960 Anglia DM 40652 54411090 5 11 8 screw spring 1961-62 Anglia DM 40814 54411233 5 17 10 screw spring 1966 Anglia 25D4 40855 54415088 5 17 10 push on 1951-56 Consul DM 40244 419254 3 15 9 Hex pin 1956-59 Consul DM 40543 424027 5 17 8 Hex spring 1960-62 Consul DM 40631 54411064 5 17 8 screw spring 1961-62 Classis Capri DM 40744 54411233 5 17 10 screw spring 1962-66 Cortina 25D4 40857 54411233 5 17 10 screw spring 1966 Cortina GT 25D4 40927 54415088 5 17 10 push on later 25D4 40927 54415926 6 17 7 push on 1970 Cortina 25D4 40984 54415088 5 17 10 push on Singer 1954-55 4AC 4AD DM 40363 420583 5 14 11 Hex spring 1958-59 Gazelle DM 40530 423389 5 11 7 Hex spring 1960-61 Gazelle HC DM 40681 423389 5 11 7 Hex spring DM 40681 54411333 5 11 7 screw spring 1960 Gazelle LC DM 40682 421948 5 14 11 Hex spring Standard 1960 Companion DM4 40606 421957 5 13 10 Hex spring 1961 Companion DM4 40606 54411230 5 13 10 screw spring 1960 Atlas DM4 40622 421941 3 13 12 Hex spring DM4 40622 54411101 3 13 12 screw spring 1961 DM4 40658 54411101 3 13 12 screw spring 1960 Vanguard Early distributor pin link DM4 40559 421943 7 18 12 Hex pin 1960 Vanguard later distributor spring link DM 40559 54411239 7 18 8 screw spring 1960 Ensign DM 40588 425417 7 12 6 Hex spring 1961 Vanguard & Ensign 85mm DM 40708 54411239 7 18 8 screw spring 1961 Ensign 76mm DM 40709 54411303 7 12 6 Hex spring Armstrong Siddeley 1960 Star Sapphire DM 40650 424017 4 13 10 Hex pin 1960 Star Limo DM 40719 54412504 7 16 8 screw pin BMC 1960 Princess 4 ltr DM 40371 421189 5 12 8 Hex spring 1960 Princess 3 ltr DM 40661 421189 5 12 8 Hex spring Jensen Healey 1973 25D4 41497 54425576 7-14-4R push on 1974 25D4 41584 54427140 4-6-4R push on 1975 25D4 41634 54428619 4-6-4R push on Australian Desoto DM6 40506 420974 6 14 8 Hex/pin reverse Understanding the Distributor Vacuum Unit Used to control fuel efficiency, running temperature and power when not under load. Old vacuum diaphragms are most likely dried out and stiff, coated with gummed up fuel vapor or leaking. A loss of significant performance! The “mechanical advance distributor” is totally different from the “vacuum advance distributor”. The mechanical advance distributor controls ignition for performance under load and is usually installed on high performance engines. The vacuum advance distributor is used on most vehicles to enhance performance when not under load. Once up to cruising speeds and/or steady RPMs, the vacuum safely advances ignition to enhance mileage, power and running temperature. The vacuum unit is most often overlooked and because of its age should be checked during regular tune-ups. Ignition timing is greatly affected by any worn or loose linkage to the point plate from the vacuum unit. Frozen or leaky diaphragms are easy to check by installing a vacuum pump or a simple vacuum hose to the unit and create vacuum. The point plate should move with a good operating unit. If the unit needs constant vacuum or has no movement at all the unit is in need of replacement. Replacing a worn out vacuum unit will usually result in a noticeable increase in power and performance. Note that when you simply disconnect the vacuum unit, it fixes nothing. The mechanical advance on a vacuum advance distributor is calibrated for under load conditions only. You lose peak performance the other 95% of the time you are not under acceleration. Vacuum units are unique to the vehicle. The code shows the specification of vacuum advance. Example; 7-18-12 code indicates 7 lbs of vacuum, the amount of vacuum the unit starts to advance, 18 indicates the lbs of vacuum at full advance and the 12 is the degrees the unit advances. If you are assuming this makes little difference, consider the distributor turns half the speed of the crankshaft. This amounts to a total loss of 24 degrees of ignition timing when not under load. British Vacuum Unit stocks vacuum units for all British vehicles 1950 through 1970. Manufactured to original appearance and exceeds OEM specs. Any units not stocked can be built. State year, vehicle type, model, engine size. To build any unit by request, we need to know the type: hex chamber or cup, spring or pin link, part number and code. Lucas distributor vacuum unit Lucas vacuum unit Lucas distributor vacuum advance unit Lucas DMBZ6 vacuum unit Lucas DM vacuum unit Lucas DM2P4 vacuum unit Lucas 22D6 vacuum unit Lucas 25D4 vacuum unit Lucas 25D6 vacuum unit Lucas Dm2p4 distributor Lucas 25D4 distributor Lucas 25D6 distributor Lucas distributor parts

Price: 89.95 USD

Location: Canterbury, New Hampshire

End Time: 2024-09-09T21:56:05.000Z

Shipping Cost: N/A USD