Dorman 902-993 Engine Coolant Thermostat Housing - Engine Block

Overview of Dorman Engine Coolant Thermostat Housing 902-993

The Dorman 902-993 engine coolant thermostat housing is designed for reliable cooling system performance in select Audi and Volkswagen models. Crafted from durable plastic with a natural finish, this thermostat housing ensures proper coolant flow and engine temperature regulation.

• Material: High-quality plastic construction for corrosion resistance
• Color: Natural finish
• Outlet Port Diameter: 1 inch for standard coolant hose connection
• Mounting Holes: Two holes with 0.28 inch diameter for secure installation
• Includes O-rings for a tight seal, no gasket or bolts included
• Straight housing neck angle for direct coolant flow
• Package contains one water outlet housing

Detailed Product Description

The Dorman 902-993 thermostat housing is engineered to meet the specifications required by Audi and Volkswagen vehicles, including the Audi A3 and S3, as well as Volkswagen Beetle, Derby, Golf, and Jetta models. Its plastic construction offers resistance to corrosion and heat, helping maintain the integrity of the cooling system. The straight housing neck angle facilitates efficient coolant flow, while the included O-rings provide a reliable seal to prevent leaks. This part does not include a thermostat, gasket, bolts, or an air vent bleeder valve, so those components must be sourced separately if needed.

Compatible Vehicles and Common Applications

• Compatible with Audi A3 and S3 models requiring a 1-inch outlet port thermostat housing
• Fits Volkswagen Beetle, Derby, Golf, and Jetta models with matching mounting specifications
• Used to replace worn or damaged thermostat housings that cause coolant leaks or overheating
• Addresses issues such as coolant leaks at the housing, engine overheating, and poor thermostat seating
• Restores proper coolant flow and engine temperature regulation

Installation Notes and Tips

When installing the Dorman 902-993 thermostat housing, ensure the mounting surface is clean and free of old gasket material. Use the included O-rings to create a secure seal, but note that no gasket or bolts are included with this part. It is recommended to inspect and replace the thermostat separately if necessary. Tighten mounting bolts evenly to the manufacturer’s torque specifications to avoid warping or leaks. This housing is designed for a straight neck angle, so verify hose alignment before installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-993 thermostat housing undergoes quality checks to ensure durability and performance in demanding engine cooling applications. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.