Heavy Duty Transmission Cooler Flow Bypass Valve Kit Ultimate Drop In Upgrade For GM 6L80 6L90 8L80 8L90 10L90 Cadillac Chevy GMC Automatic Transmissions Keeps Coolant Chillin And Shifting Sweet 2014 Plus

Single unit heavy duty transmission cooler bypass valve
✔️ Kit replaces STL010 valve reduces heat across all gears

This single transmission cooler flow bypass valve kit drops straight into late model GM powertrains. You will mount it directly onto Cadillac, Chevrolet, and GMC frames built after twenty fourteen. Keeping coolant circulating stops hot spots from warping your internal seals. You will drive heavier loads up mountain passes without chasing shifting delays. The complete assembly arrives preloaded so you can finish the swap over lunch. Just align the steel piston with the existing housing and torque everything down tight.

✅ Replaces exact OEM STL010 thermostat control valve
✅ Includes hardened steel piston bushing cone spring
✅ Preinstalled rubber seals prevent leak during installation
✅ Drops engine bay temperatures by roughly twenty percent

💡 What happens when a factory transmission thermostat fails on heavy trucks? A broken control valve locks coolant circulation until your engine hits idle temperature. - Upgrading your unit keeps coolant moving constantly through external radiators - You prevent sludge buildup inside the valve body during stop driving - Your drivetrain stays ready for heavy trailers without sudden slip events - The handy design matches OEM mounting holes for fast garage swaps

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