GM Genuine Coolant Thermostat Housing 12678780 – For 2020-2025 Blazer XT5 XT6

Got an overheating Chevy or GMC?

This genuine GM thermostat housing might be what you need.

Part number 12678780 fits 2020-2025 Blazer, XT5, and XT6 models.

It's brand new, OEM quality, direct replacement.

Comes with a 1-year warranty.

Made by GM, so you know it fits right and works right.

Don't mess with cheap aftermarket parts that leak—stick with genuine.

Easy swap to get your engine cooling properly again.

Note: California Prop 65 warning applies.

Keep your ride running cool with this OEM housing!