Dorman 902-694 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for GM Trucks and SUVs

The Dorman 902-694 engine coolant thermostat housing is designed to provide a durable and precise fit for select Cadillac, Chevrolet, and GMC models. Crafted from metal with a natural finish, this thermostat housing ensures reliable engine cooling system performance for vehicles like the Chevrolet Silverado and GMC Sierra.

Key Features of the Dorman 902-694 Thermostat Housing

• Constructed from sturdy metal material for long-lasting durability
• Natural color finish for corrosion resistance and OEM appearance
• Includes a gasket for a secure, leak-free seal
• Two mounting holes with 0.313-inch diameter for proper installation
• 1.5-inch outlet port diameter compatible with factory cooling system hoses
• 60-degree housing neck angle designed for precise coolant flow
• Does not include thermostat or bolts, allowing use with existing components

Detailed Description and Compatibility

This Dorman engine coolant thermostat housing (part number 902-694) is engineered to meet the specifications required by various GM trucks and SUVs. It is compatible with Cadillac, Chevrolet, and GMC models including the Blazer, Brougham, C1500, C2500, C3500, Suburban, Tahoe, Yukon, and others. The metal construction provides strength and heat resistance, while the included gasket ensures a tight seal to prevent coolant leaks. The housing features two mounting holes sized at 0.313 inches and a 1.5-inch outlet port diameter, matching OEM dimensions for straightforward replacement. The 60-degree neck angle facilitates proper coolant routing within the engine cooling system.

Common Applications and Problem Resolution

• Replacement for cracked or damaged thermostat housings causing coolant leaks
• Restores proper coolant flow to prevent engine overheating
• Addresses corrosion or wear issues in older thermostat housings
• Ensures a secure seal with included gasket to avoid coolant loss
• Compatible with cooling systems on GM trucks and SUVs requiring a 1.5-inch outlet port

Installation Notes and Tips

• Verify compatibility with your specific make and model before installation
• Use the included gasket to ensure a leak-free seal; do not reuse old gaskets
• Bolts are not included; reuse existing hardware or source appropriate replacements
• Ensure mounting holes align properly with engine block or intake manifold
• Check thermostat condition separately as it is not included with this housing

Quality Assurance and Warranty Information

Dorman manufactures this thermostat housing to meet or exceed OEM standards for fit, form, and function. The metal construction and precise engineering contribute to reliable performance in demanding engine cooling applications. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.