Description: TH400, TH425 Transmission Pump Boost Valve Kit Part No. 34910-01K O-Ring Style Vehicles with a GM 400 and 425 transmissions frequently have poor line rise, soft 1-2 and/or 2-3 shifts and/or Reverse engagement difficulties. These problems can be caused by the reciprocating boost valve wearing the I.D. of the boost sleeve. When this occurs, oil that enters the modulated throttle valve orifice leaks past the boost valve and exhausts through the Reverse orifice or to the sump, resulting in poor line rise. Reverse oil also can exhaust both to the sump and back through the modulated TV orifice. The O.D. of the boost sleeve also allows some leakage through the pump body, which can increase boost oil loss. Sonnax boost valve kit 34910-01K eliminates the above problems by restoring hydraulic integrity and providing a positive seal with the pump bore. Valve and sleeve manufactured from high-quality steel O-Rings provide additional protection against leakage through the pump body to assist in maintaining pressure in the circuits which supply the boost valve Uses the same valve spool diameters as the OE version to retain factory shifts Contents Valve Sleeve O-Rings (2)
Price: 32.5 USD
Location: Columbus, Ohio
End Time: 2024-10-25T16:30:31.000Z
Shipping Cost: N/A USD
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Item Specifics
Return shipping will be paid by: Seller
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Return policy details:
Brand: Sonnax
Other Part Number: S34507RK
Type: Line Pressure Boost Valve
Interchange Part Number: S34507RK
Items Included: Boost Valve and Sleeve Kit
Manufacturer Part Number: 34910-01K
Material: Steel
Universal Fitment: Yes
Vintage Part: No
Performance Part: Yes
