Motorad CH3098 Engine Coolant Thermostat Housing - Upper

Engine Coolant Thermostat Housing

The Motorad CH3098 engine coolant thermostat housing is built for upper cooling-system applications on select Mazda vehicles. It uses a plastic housing design with a black finish and is manufactured to OEM quality standards by an OE supplier.

Key Features

• Plastic thermostat housing with a standard-grade construction.
• Thermal shock validated for demanding cooling-system conditions.
• 100% leak tested for sealing verification before use.
• Single outlet design with one hose connector.
• Two mounting holes with a 2.97 in bolt-hole center spacing.
• Motorad CH3098 is a direct-fit cooling replacement for select Mazda upper applications.

Detailed Description

Motorad CH3098 is an engine coolant thermostat housing engineered for upper mounting locations in the Mazda CX-30, CX-50, Mazda 3, CX-5, CX-9, and Mazda 6. The housing is made from plastic and finished in black, with a single outlet, one hose connector, and no gasket, seal, sensor, or bleeder screw included. Its dimensions and mounting layout support a precise replacement for the listed applications, and the part number CH3098 is useful when matching the correct housing for these Mazda cooling-system repairs. This part cross-references Gates CO35081 for the same application.

What It Is Used For

• Replacing a cracked or leaking thermostat housing.
• Restoring proper coolant routing through the cooling system.
• Addressing seepage at the housing-to-engine connection.
• Correcting fitment issues caused by worn mounting points or damaged ports.
• Supporting repair of overheating concerns tied to housing failure.

Installation Notes and Tips

Confirm upper-position fitment against the vehicle application before installation. Inspect the mating surfaces, hose connection, and mounting holes for wear or damage, and verify that the required gasket or seal is sourced separately if needed. Use the part number CH3098 to match the correct housing for the specific Mazda application.

Quality Assurance

Motorad manufactures this housing to OEM quality standards as an OE supplier. It is thermal shock validated and 100% leak tested to verify performance under demanding cooling-system conditions.