Dorman 902-2063 Engine Coolant Thermostat Housing

Overview of Dorman Engine Coolant Thermostat Housing 902-2063

The Dorman 902-2063 engine coolant thermostat housing is designed for reliable cooling system performance in Chevrolet and GMC trucks and SUVs. This metal thermostat housing features a natural finish and is engineered to meet the specific requirements of models like the Chevrolet Tahoe and GMC Yukon.

• Durable metal construction with natural color finish
• Includes thermostat housing with gasket (thermostat not included)
• Outlet port diameter of 1.81 inches for precise coolant flow
• Four mounting holes with 0.313 inch diameter for secure installation
• Equipped with an air vent (bleeder valve) to prevent airlocks
• Housing neck angled at 45 degrees for optimal fitment

Detailed Product Description

The Dorman 902-2063 thermostat housing is crafted from metal to provide strength and durability under engine operating conditions. Its natural finish ensures corrosion resistance while maintaining compatibility with the cooling system components. The housing features a 1.81-inch outlet port diameter, allowing efficient coolant circulation. Four mounting holes, each measuring 0.313 inches in diameter, ensure a secure and stable attachment to the engine block. The integrated air vent (bleeder valve) helps eliminate trapped air in the cooling system, reducing the risk of overheating. The housing neck is angled at 45 degrees, designed to fit the coolant routing of Chevrolet and GMC vehicles such as the C1500 Suburban and Express 3500.

Compatible Vehicles and Applications

This thermostat housing is compatible with a range of Chevrolet and GMC models, including:

• Chevrolet C1500, C1500 Suburban, C2500, C2500 Suburban, C3500
• GMC K1500, K1500 Suburban, K2500, K2500 Suburban, K3500
• Chevrolet Express 2500, Express 3500
• GMC Savana 2500, Savana 3500
• Chevrolet Tahoe and GMC Yukon
• GMC P30 and P3500 chassis

Common Issues Addressed by This Thermostat Housing

• Coolant leaks caused by cracked or damaged thermostat housings
• Overheating due to improper coolant flow or air trapped in the system
• Corrosion and wear from prolonged exposure to engine heat and coolant
• Loose or damaged mounting points affecting housing stability
• Incorrect coolant routing caused by damaged or misaligned housing neck

Installation Notes and Tips

When installing the Dorman 902-2063 thermostat housing, ensure the gasket surface is clean and free of debris to prevent leaks. This housing does not include bolts, so use the original mounting hardware or appropriate replacements. The air vent (bleeder valve) should be properly connected to allow trapped air to escape during coolant system bleeding. Verify the 45-degree housing neck angle aligns with your vehicle’s coolant hoses for a proper fit. Note that the thermostat is not included and must be installed separately.

Quality Assurance and Warranty

Dorman manufactures this thermostat housing to meet or exceed OEM specifications for fit, form, and function. The metal construction provides durability and resistance to engine heat and corrosion. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or contact the manufacturer for warranty information.