Gates 33615 Engine Coolant Thermostat Seal

Thermostat Seal for Honda and Acura Cooling Systems

The Gates 33615 thermostat seal is a grooved, molded seal built to sit securely around the thermostat valve and help prevent coolant leakage. With an inside diameter of 1.84 in., outside diameter of 2.4 in., and height of 0.21 in., it is sized for a precise sealing fit in supported Honda and Acura applications.

Key Features

• Gates Thermostat Seal, part number 33615
• Grooved, molded style for secure thermostat valve sealing
• Inside diameter: 1.84 in.
• Outside diameter: 2.4 in.
• Height: 0.21 in.
• Green Stripe Heavy-Duty thermostat seal construction

Product Details

Gates 33615 is an engine coolant thermostat seal used in cooling system service where a tight seal around the thermostat valve is required. The molded, grooved profile helps the seal seat properly and maintain contact at the thermostat housing interface. This part is used across a wide range of Honda Civic, Honda Accord, Honda CR-V, Honda Fit, Honda Insight, Honda Odyssey, Honda Prelude, Honda CRX, Honda City, Honda CR-Z, Acura Integra, Acura Legend, Acura CL, Acura EL, Acura ILX, and Isuzu Axiom applications.

This part cross-references Dorman - HELP 82512 for the same application. The Gates Green Stripe Heavy-Duty thermostat seal line focuses on secure fitment around the thermostat valve to reduce leakage at the sealing surface.

What It Helps Address

• Coolant seepage at the thermostat valve
• Leakage at the thermostat housing sealing surface
• Loss of sealing integrity during thermostat service
• Improper seal fit from worn or damaged original seals
• Cooling system maintenance on Honda and Acura engines

Installation Notes and Tips

Verify the thermostat seal dimensions against the original part before installation. Clean the sealing surfaces thoroughly and inspect the thermostat housing for wear, corrosion, or distortion that could affect sealing. Use this seal with the correct thermostat assembly for the listed Honda and Acura fitments, including 1984-2015 Honda Civic, 1984-2002 Honda Accord, and 1997-2001 Honda CR-V applications.

Quality Assurance

Gates manufactures this thermostat seal as part of its cooling system sealing lineup, with dimensions and molded construction specified for direct replacement use in supported vehicles. Part number 33615 is cataloged for broad Honda and Acura coverage from 1983-2021 model years.