Dorman 902-5176 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing for Smart Fortwo

Dorman 902-5176 is a replacement engine coolant thermostat housing assembly for select Smart Fortwo models. It is built to match the original housing’s fit and durability, with a plastic black housing, integrated thermostat, and included gasket for a direct repair on the cooling system.

Key Features

• Replacement engine coolant thermostat housing assembly for select Smart Fortwo applications
• Plastic housing with black finish
• Includes thermostat and standard gasket
• Thermostat opening temperature: 192 degrees F
• Two mounting holes and two outlet ports
• Designed to handle repeated temperature swings in the cooling system
• Part number: 902-5176

Detailed Description

This Dorman thermostat housing assembly is engineered for the Smart Fortwo cooling system where the thermostat and housing are serviced together. The housing uses a regular-grade plastic construction with a standard gasket seal and a two-hole mounting pattern. Dorman 902-5176 is a practical OE-style replacement for 2008-2018 Smart Fortwo models, including 2.5L engine models from 2009 to 2015. This part cross-references Motorad 932-192 and URO 1322000015 for the same application.

Common Repair Uses

• Cracked or warped thermostat housing
• Coolant leaks at the housing or gasket surface
• Engine temperature control problems caused by a worn thermostat
• Cooling system service on a Smart Fortwo with the thermostat housed in the assembly
• Replacement after housing damage from heat cycling

Installation Notes

Verify engine fitment before installation, especially on Smart Fortwo 2.5L models from 2009 to 2015. Transfer no mounting hardware unless your vehicle setup requires it, since mounting hardware is not included. Inspect the mating surfaces, replace coolant as needed, and confirm the gasket seats evenly before tightening the housing.

Quality Assurance

Dorman designs this thermostat housing assembly to match stock fit and durability requirements and to withstand extreme temperature changes for extended service life. Part number 902-5176 is built as a direct replacement for select Smart Fortwo cooling system repairs.