GM 4L30-E TCC regulator valve sleeve is prone to warping because of the large slots on both sides of the sleeve. Once warped, the valve binds and gets stuck in one position or leads to excessive bore wear and circuit leaks. Sonnax TCC regulator valve sleeve 54754-02 has reinforcement ribs for added stability and is made from wear-resistant aluminum alloy material.

Reinforcement ribs added for sleeve stability
Made of wear-resistant aluminum alloy material
Drop-in Zip Valve™ installs quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

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