Shift Rite Transmissions replacement for 5R55W 5R55S 5R55S REMANUFACTURED PUMP ASSEMBLY TRANSMISSION 5R55S Shift Rite

Shift Rite Transmissions replacement for 5R55W 5R55S 5R55S REMANUFACTURED PUMP ASSEMBLY TRANSMISSION 5R55S Shift Rite

: In stock

: 15724671

: PartLimit

$318.99 Regular price $637.99

Symptoms: Delayed engagement No movement until RPM increased What is the Cause?: The pump flow control canister and plunger valve wear, allowing the plunger valve to stick open...

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Symptoms: Delayed engagement No movement until RPM increased What is the Cause?: The pump flow control canister and plunger valve wear, allowing the plunger valve to stick open and/or leakage to occur. The canister O-ring relaxes and pressure bleeds past it. The OE flow control valve is designed to increase pump efficiency by rerouting excess line pressure back to the suction side of the pump. It is common for the plunger valve to become stuck open, or for the canister to wear. This decreases line pressures and results in delayed engagements. Sonnax pump flow control valve kit 56200-03K eliminates the sticking and wear problems with redesigned and precision-machined parts. Harder canister material resists wear and has improved valve support to prevent sticking. Plunger valve is made from case-hardened steel and has annular grooves to prevent side loading. Larger O-ring eliminates pressure loss at the pump face. Canister restores the regulated line orifice to improve valve and hydraulic stability. (from Sonnax website reference: https://www.sonnax.com/parts/2198-pump-flow-control-valve-kit)

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