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July 19, 2026 1 min read

Cooling systems are only as strong as their weakest component. On the 6.7 Powerstroke, aging rubber hoses, factory quick-connect fittings, and the stock thermostat all become potential failure points over time. This kit upgrades the entire system at once with 5-ply silicone radiator hoses, billet aluminum connections, and a low-temperature, high-flow thermostat, giving your truck a more durable cooling system built for towing, daily driving, and high-performance use.

Check them out: 

Upper & Lower Radiator and Thermostat Kit- Fits 11-16 6.L Powerstroke: https://www.spemotorsport.com/collections/powerstroke-cooling-system/products/spe-motorsport-upper-lower-radiator-and-thermostat-kit-fits-11-16-6-l-powerstroke

Upper & Lower Radiator and Thermostat Kit- Fits 2017+ 6.7L Powerstroke: https://www.spemotorsport.com/collections/powerstroke-cooling-system/products/spe-motorsport-upper-lower-radiator-and-thermostat-kit

Features and Benefits: 
Thermostat:
•  Opens at 175/180°F— a 19-21 degree difference
•  Up to 30°F temp drops
•  Lowers coolant temp
•  Lowers oil temp
•  Lowers transmission temp on 17-19 models
Radiator Hoses: 
•  5-ply polyester reinforced silicone
•  Billet aluminum engine and radiator connections
•  Eliminates quick connect on engine side of the radiator hose which is prone to leaking
•  Designed to outlast and outperform brittle factory rubber hoses

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