Thermostat Assembly Fit OEM Cadillac Chevrolet GMC Silverado Tahoe Sierra Yukon


Verify Your Fitment

Ensure total system compatibility by checking your vehicle's Year, Make, and Model in the eBay Compatibility Table above.

Manufacturer / BrandT.R.E. Thermal Systems Inc
Part NumberTA78504097
CategoryThermostat Assembly
Operating Temp207F
ConditionPrecision Grade / New Item
T.R.E: Thermal Regulation Engineering
The T.R.E. Thermal TA78504097 is a complete, high-performance thermostat assembly designed to provide a comprehensive solution for cooling system management.
  • Manufactured by: T.R.E. Thermal Systems Inc. world-leading engine coolant components manufacturer. 
  • Direct OEM Replacement: Expertly designed to replace the original water outlet and housing on specific vehicle years, makes, and models.
  • Engineered for Durability: Forged to withstand extreme thermal fluctuations and high-pressure cycles without cracking or leaking.
  • Advanced Component Integration: Manufactured to meet original equipment standards, providing a perfect seal and seamless integration with existing coolant lines.
  • 100% Factory Tested: Each unit undergoes rigorous pressure and thermal calibration testing to ensure long-term reliability.
Please note: Outer packaging may vary from the images shown. We are constantly upgrading our materials to ensure the best possible protection for your order during transit.
Ensuring Professional Compatibility:
  • For the best results, please compare your original unit with our photos before purchasing.
  • Please check the Compatibility Table above to ensure a seamless fit for your specific vehicle.
Technical Cross-Reference Guide: OE/OEM Part Numbers
General Motors 12650534
General Motors 12650536
General Motors 12657137
General Motors 12666569
General Motors 12671393
General Motors 12674639
Interchange Part Numbers
MotoRad 815-207
Stant 15632
Autozone 81507
Dorman 902-2090
ACDelco 15-11112
Gates 34836
Mahle TI26797
Return Policy:
We offer a 30-day return window for all parts. To qualify for a full refund, items must be returned in their original, unopened condition with all manufacturer packaging intact and undamaged. Please note that the manufacturer’s box is considered part of the product; returns received with torn, labeled, or taped-over original packaging may be subject to a deduction for loss in value per eBay seller guidelines. We are committed to your satisfaction. If something isn’t right with your order, please reach out to us via eBay messages so we can make it right.