Dorman 902-748 Engine Coolant Thermostat Housing - Upper

Overview of the Dorman 902-748 Engine Coolant Thermostat Housing

The Dorman 902-748 engine coolant thermostat housing is a reliable replacement part designed for specific vehicle applications. Constructed from durable black plastic, this thermostat housing provides a straight housing neck angle and a 1-inch outlet port diameter, ensuring proper coolant flow and system integrity.

• Material: Durable black plastic construction
• Outlet port diameter: 1 inch for precise coolant flow
• Straight housing neck angle for direct coolant routing
• Includes one water outlet; gasket, bolts, and thermostat not included
• Mounting hole diameter: 0.25 inches, with no mounting holes included
• No air vent (bleeder valve) or O-rings included

Detailed Product Description

The Dorman 902-748 thermostat housing is engineered to replace the original equipment part in compatible vehicles, providing a secure connection point for the engine coolant thermostat. Its black plastic construction offers resistance to corrosion and heat, contributing to the longevity of the cooling system. The straight housing neck angle facilitates straightforward installation and coolant flow, while the 1-inch outlet port diameter matches OEM specifications for proper fitment. This housing does not include a thermostat, gasket, bolts, or O-rings, so these components should be sourced separately to complete the installation.

Common Applications and Issues Addressed

• Replacement of cracked or leaking thermostat housing
• Resolving coolant leaks around the thermostat area
• Addressing overheating issues caused by faulty housing
• Restoring proper coolant flow in the engine cooling system
• Preventing contamination and coolant loss due to housing damage

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Inspect and replace the thermostat, gasket, and O-rings as needed since they are not included
• Use proper torque specifications for mounting bolts to prevent damage
• Check for leaks after installation by running the engine and monitoring coolant flow
• Consult vehicle-specific service manuals for detailed fitment and installation procedures

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 902-748 thermostat housing undergoes rigorous quality control to maintain consistent fit and function. Warranty coverage details should be confirmed with the product documentation or supplier.