Facet 7.9651 Engine Coolant Thermostat Gasket

Facet 7.9651 Engine Coolant Thermostat Gasket

Facet 7.9651 is an engine coolant thermostat gasket for select Mercedes-Benz diesel applications. It provides the sealing interface needed when servicing the thermostat housing on compatible 300D, 300SD, and 300TD models.

Key Features

• Engine coolant thermostat gasket for thermostat housing sealing
• Compatible with select Mercedes-Benz 300D, 300SD, and 300TD diesel models
• Direct fitment for listed applications when the part number matches
• Facet part number 7.9651 for catalog and service reference

Detailed Description

This thermostat gasket is used in the cooling system to create a proper seal between the thermostat housing and mating surfaces. It is listed for 1982-1985 Mercedes-Benz 300D, 1980-1985 Mercedes-Benz 300SD, 1981-1985 Mercedes-Benz 300TD, and 1980-1981 Mercedes-Benz 300D. For Mercedes-Benz 300D, Mercedes-Benz 300SD, and Mercedes-Benz 300TD service work, verify the part number before purchase to confirm application match. This part number, 7.9651, is the reference to use when matching the gasket to the vehicle and cooling system service needs.

What It Helps Address

• Coolant seepage at the thermostat housing
• Sealing issues after thermostat replacement
• Leak paths caused by an aged or damaged gasket
• Cooling system service on listed Mercedes-Benz diesel models

Installation Notes

Clean both sealing surfaces before installation and inspect the thermostat housing for corrosion, pitting, or warpage. Confirm the thermostat and gasket orientation against the vehicle service information, and verify Facet 7.9651 against the existing part number before assembly. Proper surface preparation helps the gasket seat evenly and maintain a reliable seal.

Quality Assurance

Facet supplies service parts for cooling-system repairs, and this gasket is cataloged for direct fitment on the listed Mercedes-Benz applications. Cross-reference part numbers are not provided in the source data for this item.