Boost Performance On Your Daily Driver With This Slick Cooler Flow Bypass Valve Kit Built For GM 6L80 6L90 8L80 Transmissions Delivers Flawless Heat Management And Reliable Drop In Replacement Quality

Regular price $49.99 Sale price$100.00you save $50.01
Product ID: 1236-8583
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Precision Cooler Flow Bypass Valve Kit For GM Auto Trans
✔️ Replaces STL010. Fits 6L80 8L80 8L90E. Drops temps fast

Your daily hauler will appreciate swapping out that sluggish control valve. This assembly manages transmission fluid heat so you avoid sticky shifts and burnt fluid smell. You drop it into the pan and get immediate relief from summer traffic heat or trailer weight.

✅ Includes one bushing and one sealed piston for quick swaps.
✅ Matches original part number STL010 for direct bolt up.
✅ Keeps transmission fluid near twenty percent cooler under load.
✅ Machined to factory tolerances for lasting seal integrity.

💡 Why replace an old cooler flow bypass valve kit for better transmission oil cooling?
Fixing a worn bypass mechanism is a handy way to stop thermal stress in automatic gearboxes. A clean swap stabilizes pressure and keeps friction surfaces alive longer.
- Channels fluid directly past restricted passages to maintain steady radiator exchange.
- Drops active run temperatures by reducing dead zones inside the valve body.
- Blocks slow bleeds with matched steel balls and molded seals for leak free uptime.
- Preserves shift firmness by guaranteeing uninterrupted lube delivery under stress.

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