Motorad CH6031 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Nissan

The Motorad CH6031 engine coolant thermostat housing is built for OE-style cooling system service on select Nissan applications. It is a metal housing with a silver finish, a paper gasket/seal included, and a 2-bolt mounting design for a direct replacement on listed vehicles.

Compatible With 1981-1989 Nissan 720, 1984-1988 Nissan 200SX, 1986-1989 Nissan D21, and 1987-1988 Nissan Pathfinder applications that use an engine coolant water outlet with housing. The Motorad CH6031 is made to meet OEM standards and is thermal shock validated and 100% leak tested.

Key Features

• Engine coolant thermostat housing for select Nissan cooling systems
• Metal construction with silver finish
• Paper gasket/seal included
• 2 mounting holes for OE-style fitment
• 1 outlet port
• Manufactured to OEM quality standards by an OE supplier
• Thermal shock validated and leak tested

Detailed Description

The Motorad CH6031 thermostat housing is designed for Nissan D21, 200SX, Pathfinder, and 720 models listed in the fitment data. It serves as the engine coolant water outlet with housing, helping maintain a secure seal at the thermostat location and supporting proper coolant flow through the engine cooling system. The metal body and included paper gasket/seal provide a service-ready replacement for worn, corroded, or leaking housings.

This part cross-references Dorman OE Solutions 902-5031 and Dorman HELP 84942 for the same application. Motorad CH6031 is also referenced by 9CH6031 and 11060W7001 in interchange data.

Common Problems This Part Can Address

• Coolant seepage at the thermostat housing
• Cracked or corroded water outlet housing
• Failed gasket seal at the coolant outlet
• Improper sealing after prior cooling system service
• Housing wear on older Nissan cooling system components

Installation Notes and Tips

Verify the existing housing matches the 2-bolt, 1-outlet-port design before installation. Clean the mating surface thoroughly, inspect the thermostat and adjacent coolant hoses, and replace any damaged sealing surfaces before assembly. Use the included gasket/seal during installation and torque fasteners evenly to help prevent leaks.

Quality Assurance

Motorad manufactures this thermostat housing to OEM quality standards as an OE supplier. The CH6031 is thermal shock validated and 100% leak tested to support dependable cooling system service on the listed Nissan applications.