Dorman 902-2049 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Buick, Oldsmobile, Pontiac

The Dorman 902-2049 engine coolant thermostat housing is designed to provide a durable and precise fit for select Buick, Oldsmobile, and Pontiac models. Engineered from metal with a natural finish, this thermostat housing ensures proper coolant flow and temperature regulation for your vehicle's engine.

• Constructed from durable metal material for long-lasting performance
• Includes a gasket for a secure, leak-free seal
• Features a 1.25-inch outlet port diameter for optimal coolant flow
• Equipped with an air vent (bleeder valve) to prevent air pockets
• Designed with two mounting holes, each 0.313 inches in diameter
• 90-degree housing neck angle for precise fitment
• Package contains thermostat housing with gasket; bolts and thermostat not included

Detailed Description of Dorman 902-2049 Thermostat Housing

This engine coolant thermostat housing by Dorman is specifically compatible with Buick Achieva, Oldsmobile Cutlass Calais, Cutlass Supreme, and Pontiac Grand Am, Grand Prix, and Skylark models. The metal construction provides strength and resistance to heat and corrosion, essential for maintaining engine cooling system integrity. The included gasket ensures a tight seal between the housing and engine block, reducing the risk of coolant leaks. The 1.25-inch outlet port diameter supports efficient coolant circulation, while the built-in air vent (bleeder valve) helps eliminate trapped air, which can cause overheating or inefficient cooling.

Common Applications and Issues Addressed

• Replacement for cracked or damaged thermostat housing
• Prevents coolant leaks that can lead to engine overheating
• Resolves issues with air pockets in the cooling system
• Restores proper coolant flow and temperature regulation
• Addresses mounting problems with precise hole sizing and spacing

Installation Notes and Tips

When installing the Dorman 902-2049 thermostat housing, ensure the gasket is properly seated to prevent leaks. The housing features two mounting holes with a diameter of 0.313 inches, so use compatible bolts (not included) for secure attachment. The 90-degree neck angle must align correctly with the vehicle’s coolant hoses. Bleed the cooling system after installation to remove any trapped air through the built-in air vent. Note that the thermostat is not included and should be installed separately if needed.

Quality Assurance and Warranty Information

Dorman manufactures this thermostat housing to meet or exceed OEM specifications for fit, form, and function. The metal construction and included gasket contribute to reliable performance under normal operating conditions. While bolts and thermostat are not included, the housing is designed for straightforward installation with compatible components. Warranty details can be obtained from Dorman or the product packaging to ensure coverage for manufacturing defects.