MotoRad Spec-R Radiator Caps and Thermostats at Summit Racing: Built to Withstand the Rigors of Racing
The stainless Spec-R racing radiator caps are rated up to 42 psi, and the high-flow Spec-R thermostats open at 160 or 170 degrees F for cooler operation under race conditions

TALLMADGE, OHIO — You can’t enjoy driving or racing a high-performance car if the engine’s cooling system is shooting geysers of coolant in the air. It’s why race-ready MotoRad Spec-R radiator caps and thermostats are a smart choice. They’re built to take on the high pressure and elevated temperatures that standard factory parts simply can’t handle in the heat of competition.
Spec-R Racing Radiator Caps
MotoRad Spec-R Racing Radiator Caps are designed for tuned turbo and high-output engines. Made from stainless steel, the caps maintain optimal pressure levels under sustained high loads, raising the boiling point of the coolant so engines can run at peak efficiency. They also have an EasyGrip design for simple installation and removal.
MotoRad Spec-R Racing Radiator Caps are available in universal-fit sizes with 22, 25, 32, or 42 psi ratings. Direct-fit caps for specific BMW, Dodge, Fiat, Jeep, and Mercedes-Benz vehicles are also available. Radiator caps for late-model Hemi Challengers and Chargers have a safety lever that opens the pressurization valve to vent steam and pressure through the overflow tube before the cap is removed.
Spec-R Racing Thermostats
MotoRad Spec-R Racing Thermostats deliver precise temperature control while holding up to challenging race conditions. Made from copper/steel or copper/stainless steel, the high-flow thermostats open at lower temperatures (160 or 170 degrees F, depending on application) than OEM thermostats for cooler engine operation.
Other features include:
- Black oxide coating for high-temperature tolerance, corrosion resistance, and durability
- Specially formulated Spec-R heat element mixture for faster response time
- Proprietary gasket composition withstands high-pressure cooling systems (gasket not included with all models)
- Thermostats for GM LS and LT engines have an integrated water neck
MotoRad Spec-R Racing Thermostats come in universal-fit models for many domestic and import vehicles. Thermostats are also available for specific Chrysler, Dodge, Ford, Jeep, and RAM truck applications.
Check out the full lineup of MotoRad Spec-R radiator caps and thermostats at Summit Racing Equipment, www.summitracing.com, 1-800-230-3030.
Media contact
Alan Rebescher, Summit Racing EquipmentThis release was issued by Summit Racing and is republished here with a link to the original. Brand representatives can request an edit or removal.
