Cooling System Upgrade Kit for 6L80 6L90 and 8L90 Transmissions in Chevy GMC and Cadillac Trucks Prevents Overheating Improves Coolant Flow Reduces Transmission Fluid Temperature Eliminates Thermostatic Assembly and Quick Fluid Level Check
✔️ Reduces trans fluid temp, bypasses thermostatic, quick install
This cooling system upgrade kit is a drop-in solution for GM 6L80, 6L90, and 8L90 transmissions in Chevy, GMC, and Cadillac trucks. It eliminates the thermostatic assembly and ensures steady coolant flow, helping prevent overheating and making after-install fluid checks quick and simple.
✅ Prevents overheating by maintaining continuous cooler flow
✅ Reduces trans temp for consistent operation
✅ Eliminates thermostatic assembly for quick fluid checks
✅ Drop-in Cooler Flow Bypass Delete Kit for GM 6L80, 6L90, 8L90 and Allison transmissions
✅ Fits 2014-on 6L80, 6L90, 2015-on 8L90, 2017-19 Allison
💡 What is a cooling system upgrade kit for GM 6L80/6L90/8L90 transmissions and how does it improve performance?
It’s a handy upgrade that keeps temps in check and makes maintenance easier.
- Improves coolant flow and lowers transmission fluid temperature for 6L80/6L90/8L90
- Eliminates thermostatic assembly for quick, reliable fluid level checks after install
- Drop-in, cost-effective upgrade compatible with GM and Allison transmissions
- Fits 2014-on 6L80/6L90, 2015-on 8L90, and 2017-19 Allison units