Drivetrain› Differentials and Rear-End Components

Sonnax

Pump Slide Spring

$23.99

SKU: 77722-01K

In Stock
In Stock
Ships by Aug 5
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Sonnax Pump Slide Spring (Part No. 77722-01K) is a high-performance upgrade for 4L60, 4L60-E, 4L65-E, and 200-4R automatic transmissions. This precision-engineered spring is built to maintain the pump in its high volume position, even under extreme high RPM conditions. By ensuring consistent pump volume, it helps to prevent issues like 3-4 clutch failures and erratic line pressure, contributing to smoother shifting and extended transmission life. The design is particularly beneficial in high-performance applications where engine speeds can exceed 5800 RPM. The Sonnax 77722-01K is suitable for various GM vehicles equipped with the specified transmissions.

Fitment

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Specifications

BrandSonnax
Part Number77722-01K
CategoryDrivetrain

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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