Dorman 902-5043 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Geo and Toyota

The Dorman 902-5043 engine coolant thermostat housing is designed to provide a durable and precise fit for select Geo and Toyota vehicles. Engineered from metal with a natural finish, this thermostat housing ensures efficient coolant flow and reliable engine temperature regulation.

• Constructed from durable metal material for long-lasting performance
• Natural color finish matching OEM appearance
• Outlet port diameter of 1.188 inches for proper coolant flow
• Includes gasket for a secure, leak-free seal
• Two mounting holes with 0.313-inch diameter for stable installation
• 180-degree housing neck angle to match specific engine configurations
• Compatible with Geo Celica, Toyota Corolla, and Toyota Prizm models
• Thermostat not included; housing only

Product Details and Specifications

The Dorman 902-5043 thermostat housing is crafted from metal to withstand the high temperatures and pressures within the engine cooling system. Its natural finish maintains the OEM look while resisting corrosion. The housing features an outlet port diameter of 1.188 inches, ensuring proper coolant flow to maintain optimal engine temperature. Two mounting holes, each with a diameter of 0.313 inches, provide secure attachment points. The housing neck angle is set at 180 degrees, designed to fit the coolant routing of compatible Geo and Toyota models. This part includes a gasket to help prevent leaks but does not come with bolts or a thermostat.

Compatible Vehicles and Applications

This engine coolant thermostat housing is compatible with the following vehicles:

• Geo Celica
• Toyota Corolla
• Toyota Prizm

Use the Dorman 902-5043 thermostat housing when replacing a worn or damaged housing in these models to maintain proper engine cooling system function.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks caused by cracked or warped thermostat housing
• Engine overheating due to improper coolant flow
• Corrosion damage compromising housing integrity
• Loose or damaged mounting points affecting seal quality
• Replacement of OEM housing during engine repairs or upgrades

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly to ensure a proper seal with the included gasket. Use appropriate torque specifications for the mounting bolts (not included) to prevent leaks or damage. Verify the housing neck angle and outlet port size match your vehicle’s requirements. After installation, refill the cooling system and check for leaks during engine warm-up.

Quality Assurance and Warranty

Dorman manufactures the 902-5043 thermostat housing to meet or exceed OEM standards for fit, form, and function. The metal construction provides durability under normal operating conditions. This part includes a gasket to ensure a reliable seal. While bolts and thermostat are not included, the housing is designed for straightforward replacement. Warranty coverage details can be obtained from the product documentation or Dorman’s official resources.