Gates 33921 Engine Coolant Thermostat

OE Type Thermostat for Precise Cooling Control

Gates 33921 is an OE Type Engine Coolant Thermostat built for direct-fit cooling system service. It uses stainless steel and copper construction with an O-ring seal to support leak-free temperature regulation in the engine cooling circuit.

Compatible With 1999-2003 Mitsubishi Galant, 2000-2005 Mitsubishi Eclipse, 2001-2005 Chrysler Sebring, 2001-2005 Dodge Stratus, and 2003 Mitsubishi Outlander. This Gates OE Type Thermostat 33921 is specified for 190/192 degree opening temperatures and OE-style temperature control.

Key Features

• OE Type thermostat for factory-style cooling system operation
• Start-to-open temperature: 190/192 degrees Fahrenheit, or 88/89 degrees Celsius
• Stainless steel and copper construction
• O-ring seal type for a secure sealing interface
• Bottom by-pass design
• OE Performance comparison rating
• Jiggle pin weep hole configuration listed in the product data

Product Details

Gates OE Type Thermostats are built to deliver accurate coolant flow control and an OEM-equivalent fit. Part number 33921 is a bottom by-pass engine coolant thermostat with a sealing flange diameter listed at 2.13 to 2.2 inches, flange height between 1.59 and 1.72 inches, and overall height listed at 2.27 to 2.45 inches. The design supports stable operating temperature management in applications such as Mitsubishi Galant, Mitsubishi Eclipse, Chrysler Sebring, Dodge Stratus, and Mitsubishi Outlander cooling systems.

This part cross-references Stant 48239 and Motorad 422-190 for the same application.

Common Cooling System Issues It Can Address

• Engine running too cool or taking too long to reach operating temperature
• Temperature fluctuation caused by a worn thermostat
• Coolant flow control problems in the thermostat housing circuit
• Leak concerns at the thermostat sealing surface
• Incorrect thermostat opening temperature for OE-style service

Installation Notes and Tips

Verify the thermostat orientation, bypass design, and opening temperature before installation. Clean the housing sealing surfaces thoroughly and inspect the O-ring seat, flange area, and coolant passages for corrosion or debris. Confirm vehicle application by year, make, and model before service on Chrysler Sebring, Dodge Stratus, Mitsubishi Eclipse, Mitsubishi Galant, or Mitsubishi Outlander.

Quality Assurance

Gates engineers this OE Type Thermostat for precise temperature control and OEM-equivalent fit. The part is built to meet OE-style cooling system requirements for direct replacement service.