SKP SK121091 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing for Ford and Mercury

The SKP SK121091 engine coolant thermostat housing assembly is built for select Ford and Mercury applications that use a clip-on style ECT sensor. It features a black PA66-GF30 plastic housing, a 1.25 in. inside diameter, and a gasket or seal included for service replacement.

• Engine coolant thermostat housing assembly for cooling system repair
• Plastic construction: PA66-GF30
• Black finish
• 1.25 in. inside diameter
• Gasket or seal included
• 190 degree start-to-open temperature
• 3 outlet ports
• Fits applications with a clip-on style ECT sensor where noted

Detailed Product Information

SKP SK121091 is a direct-fit thermostat housing assembly for 2001-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac with clip-on style ECT sensor, 2001-2010 Mercury Mountaineer, and 2001-2003 Ford Explorer Sport. This thermostat housing supports coolant flow control at the engine and is specified with a 190 degree start-to-open temperature for the listed applications. The part number SK121091 is also referenced by OE-style interchange numbers used on the same vehicle coverage.

This part cross-references Dorman - OE Solutions 902-860 for the same application.

Common Repair Uses

• Cracked or leaking thermostat housing
• Coolant seepage around the housing or seal area
• Temperature control issues tied to a worn thermostat housing assembly
• Service replacement on Ford Explorer and Mercury Mountaineer cooling systems
• Replacement for vehicles requiring a clip-on style ECT sensor connection

Installation Notes and Tips

Verify engine configuration and sensor style before installation. Confirm the housing matches the original outlet port layout, inside diameter, and thermostat opening temperature for the vehicle. Inspect the mating surface and coolant passages during service, and replace coolant according to the vehicle manufacturer’s procedure after installation.

Quality Assurance

SKP manufactures this thermostat housing assembly in PA66-GF30 plastic for the listed fitments and includes a gasket or seal for service replacement. Confirm part number SK121091 against the vehicle application before ordering.