Description: Common problems in vehicles with GM 4L80-E and 4L85-E transmissions are uncontrollable line rise (upward of 500-600 psi), high line pressure in Reverse, buzzing noise, broken direct clutch drums and/or broken cases. These problems are usually caused by Reverse boost oil that enters the torque signal circuit due to a wear-created cross leak at the sleeve. High line pressure and buzz is created by oil leakage past the aluminum balance plug. Sonnax boost vavle kit 34200-03K eliminates these problems.Hardened steel boost valve with over 20% wider spools to provide better durability and increased sealing contact areaBoost valve spools have annular grooves to reduce side-loading that causes wearValve and sleeve are manufactured to close tolerances to restore proper clearance and hydraulic integrityKit includes a replacement aluminum balance oil plug with an O-ring to ensure proper sealing and adequate back pressure on the pressure regulator valveDrop-in Zip ValveĀ parts install quickly and easily
Price: 37.48 USD
Location: Wichita, Kansas
End Time: 2025-01-08T21:33:38.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Brand: Sonnax
Items Included: Sonnax Transmission Components
Type: Boost Valve Kit
Manufacturer Part Number: 34200-03K
Performance Part: No
Universal Fitment: No
Vintage Part: No
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