Gates only partners with prime OE thermostat manufacturers to provide OE Exact or OE Type construction for use on heavy-duty trucks, buses and tractors.

• OE-exact designed for customers that demand the exact OEM thermostat as a replacement product.
• Fits applications with 3/4" deep filler necks.
• OE Type - Quality controlled factory calibration assures accuracy of opening and closing, regardless of pressure changes.
• Matches the OEM product fit, function and design.
• Temperature sensitive heat motor provides consistent valve response for smooth performance and precise engine cooling.
• Features including jiggle pins and check valves for air venting, seals, and gaskets make these thermostats equivalent to the original equipment parts.

Which Thermostat Is Right For You?

What Temperature Thermostat Do I Need?

Thermostats have a “rated” temperature (such as 180F or 195F). This is the temperature the thermostat will start to open, releasing heated coolant from the engine into the radiator. The thermostat will fully open once the coolant gets another ten or fifteen degrees warmer.

Cooling System Maintenance | Tips & Tools

Without regular maintenance, cooling system components will degrade and fail prematurely, which can lead to costly engine damage. Protect your engine with simple preventative maintenance:

• Completely drain and flush the system using Cooling System Flush prior to installation. Flushing the system is critical to prevent system contamination and failure.
• Consider replacing the Radiator Hoses (and Hose Clamps) and Radiator Cap as part of routine preventative maintenance. System contamination can cause these parts to degrade and fail over time, which can lead to severe engine damage from overheating.
• Refill radiator with fresh Coolant / Antifreeze according to the volume and formula specified in your Owner's Manual. Inspect levels and condition every year.

Additional Resources