Gates 33338 Engine Coolant Thermostat

Reliable Engine Cooling with Gates OE Type Thermostat 33338

The Gates OE Type Thermostat 33338 is engineered to maintain optimal engine temperature for vehicles including Ford Escape, Mazda RX-7, and Toyota 4Runner. Designed with durable stainless steel and copper materials, this engine coolant thermostat ensures consistent performance and longevity.

• Constructed from stainless steel and copper for durability
• Bottom by-pass design for efficient coolant flow
• Start to open temperature at 180°F (82°C) for precise temperature regulation
• Sealing flange outside diameter of 2.05 inches for secure fit
• Compatible with Ford, Mazda, Mercury, and Toyota models

Detailed Features and Specifications

This OE Type Thermostat from Gates features a bottom by-pass design that allows coolant to circulate even when the thermostat is closed, helping to prevent engine overheating. The thermostat’s height ranges between 1.37 and 2.17 inches depending on measurement points, with a flange thickness of 0.05 inches ensuring a tight seal. It includes a jiggle pin weep hole to release trapped air, improving cooling system efficiency. The thermostat opens at 180°F (82°C), which is critical for maintaining the correct engine operating temperature. The part number 33338 is designed without gaskets or installation tools, requiring standard installation procedures.

Compatible Vehicles and Applications

This engine coolant thermostat is compatible with a range of vehicles, including Ford Escape, Taurus, and Focus; Mazda RX-7 and Tribute; Mercury Cougar and Mystique; and Toyota 4Runner and T100. It is ideal for replacing worn or faulty thermostats in these models to restore proper engine temperature control.

• Prevents engine overheating and coolant leaks
• Resolves inconsistent engine temperature readings
• Eliminates poor heater performance due to thermostat failure
• Addresses coolant circulation issues in Ford Escape and Mazda RX-7
• Improves engine warm-up time in Toyota 4Runner and Mercury Cougar

Installation Notes and Tips

The Gates OE Type Thermostat 33338 does not include an installation tool, so standard thermostat removal and installation tools are required. Ensure the cooling system is fully drained before removal. Verify the sealing flange diameter of 2.05 inches matches the vehicle’s housing for proper fitment. Check for the presence of a jiggle pin weep hole to allow air to escape during installation. Follow manufacturer torque specifications when securing the thermostat housing.

Quality Assurance and Warranty

Gates OE Type Thermostats are manufactured to meet original equipment (OE) performance standards, ensuring reliable operation and durability. The part number 33338 undergoes rigorous quality control to maintain consistent opening temperatures and material integrity. While specific warranty details are not provided, Gates products typically come with a limited warranty against defects in materials and workmanship.