Dorman 902-2031 Engine Coolant Thermostat Housing

Overview of Dorman Engine Coolant Thermostat Housing 902-2031

The Dorman 902-2031 engine coolant thermostat housing is designed for reliable cooling system performance in Chevrolet and GMC heavy-duty trucks and vans. This metal thermostat housing features a natural finish and includes a gasket for a secure seal, ensuring proper engine temperature regulation.

• Constructed from durable metal material for long-lasting use
• Natural color finish matching OEM appearance
• Includes gasket for leak-free installation
• Outlet port diameter of 1.5 inches for precise coolant flow
• Two mounting holes with 0.313 inch diameter for secure attachment
• 90-degree housing neck angle to fit specific engine configurations
• Compatible with Chevrolet and GMC models including C2500, K2500, C3500, Express 3500, and Savana 3500

Detailed Product Description

The Dorman 902-2031 thermostat housing is engineered to meet the cooling system requirements of Chevrolet and GMC heavy-duty trucks and vans. Made from metal, this thermostat housing offers durability and resistance to heat and corrosion. The natural finish maintains the original equipment look, while the included gasket ensures a tight seal to prevent coolant leaks. The housing features a 1.5-inch outlet port diameter and a 90-degree neck angle, designed to fit the cooling system layout of vehicles such as the Chevrolet C2500 Suburban and GMC Savana 3500. With two mounting holes sized at 0.313 inches, installation is straightforward and secure. This thermostat housing does not include the thermostat or bolts, so those components must be sourced separately.

Compatible Vehicles and Applications

• Chevrolet C2500 and C2500 Suburban
• Chevrolet C3500 and Express 3500
• GMC K2500 and K2500 Suburban
• GMC K3500, G30, P30, P3500, and Savana 3500

This part is specifically designed for these models to ensure proper fit and function within the engine cooling system.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks caused by cracked or damaged thermostat housing
• Overheating due to improper coolant flow
• Corrosion and wear from prolonged exposure to engine heat
• Loose or damaged mounting points leading to coolant system failure
• Replacement of worn or missing gaskets to prevent leaks

Installation Notes and Tips

When installing the Dorman 902-2031 thermostat housing, ensure the engine is cool before beginning work. Use the included gasket to create a proper seal and prevent leaks. Since bolts are not included, use OEM or compatible fasteners with the correct specifications. Verify the 90-degree neck angle aligns with your vehicle’s cooling system layout. Inspect the mounting holes and clean the surface before installation to ensure a secure fit. This housing does not include a thermostat, so install a compatible thermostat separately.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-2031 thermostat housing undergoes quality checks to ensure durability and performance in demanding engine environments. 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.