MAZDA 3 Thermostats, Housings & Fillers Cooling & Heating - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Dorman Thermostats

Replace your stock thermostat with new parts from Dorman. These quality components offer solution upgrades for your coolant outlets. Dorman offers thermostats for several applications. Don't wait for your engine to overheat or for the check engine light to illuminate--upgrade to reliable, OE-fitting thermostats from Dorman.

3.14 out of 5 stars ( 29 )

$30.99

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$36.99

Dorman Thermostat Housings

Replace your stock thermostat housing with new parts from Dorman. These quality replacement components offer solution upgrades for your coolant system, and they are available for several applications. Don't wait for your engine to overheat or for the check engine light to illuminate--upgrade to reliable, OE-fitting thermostat housings from Dorman.

4.24 out of 5 stars ( 176 )

$33.99

Four Seasons Outlet and Thermostat Housing Kits

Four Seasons outlet and thermostat housing kits are designed and manufactured from durable materials. These direct-fit engine coolant components meet or exceed OEM standards and include quality gaskets or O-rings. They are 100 percent leak tested to ensure proper sealing and performance.

3.2 out of 5 stars ( 5 )

$24.99

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$26.99

Mishimoto Thermostats

Mishimoto thermostats are effective in noticeably lowering engine coolant temperatures. These thermostats are built with high-quality wax and are shipped with new rubber gaskets (where applicable) for a good, leak-free seal. They are then digitally calibrated for precise operation. Mishimoto thermostats open up at a slightly lower temperature than OEM or standard thermostats once your engine is fully warmed up. This allows the coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether you have a daily driver or a modified and upgraded turbo, Mishimoto thermostats will maintain optimal temperatures to efficiently cool your application.

4.44 out of 5 stars ( 73 )

$91.95

Beck/Arnley Coolant Thermostats

You always get high-quality replacement parts from Beck/Arnley. Their self-cleaning engine coolant thermostats are constructed from high-quality stainless steel and copper to prevent corrosion and have long-stroke capabilities to provide maximum cooling. They allow your engine to reach operating temperature quickly to reduce oil dilution, fuel consumption, and exhaust emissions. Improve the overall efficiency of your heating system with Beck/Arnley coolant thermostats.

4.09 out of 5 stars ( 11 )

$34.99