Dorman 902-2129 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly for Saturn Vehicles

The Dorman 902-2129 Engine Coolant Thermostat Housing Assembly is designed to provide precise temperature regulation and reliable performance for Saturn SC, SC1, SC2, SL, SL1, SL2, SW1, and SW2 models. Crafted from durable aluminum with a natural finish, this assembly ensures efficient engine cooling and long-lasting service.

• Constructed from high-quality aluminum for durability and heat resistance
• Includes thermostat calibrated to open at 192°F for optimal engine temperature control
• Comes with an O-ring gasket to ensure a secure, leak-free seal
• Features one outlet port and a bleeder hole for effective coolant flow and air release
• Designed with two mounting holes spaced 2.5 inches apart for secure installation
• Flange dimensions: 3.25 inches length, 2.23 inches width, and 0.35 inches thickness
• Package includes thermostat housing, thermostat, and O-ring gasket; mounting hardware not included

Detailed Product Description

The Dorman 902-2129 thermostat housing assembly is engineered to meet the cooling system requirements of various Saturn models including SC, SC1, SC2, SL, SL1, SL2, SW1, and SW2. The aluminum construction offers excellent resistance to corrosion and thermal stress, ensuring consistent performance under demanding engine conditions. The included thermostat opens at 192 degrees Fahrenheit, maintaining optimal engine operating temperature to prevent overheating or inefficient fuel consumption. The O-ring gasket provides a reliable seal to prevent coolant leaks, while the bleeder hole facilitates the removal of trapped air from the cooling system, enhancing overall efficiency.

Common Applications and Problem Resolution

• Replaces faulty or cracked thermostat housing assemblies causing coolant leaks
• Restores proper engine temperature regulation to prevent overheating
• Eliminates air pockets in the cooling system with built-in bleeder hole
• Addresses thermostat failure issues that lead to poor engine performance
• Prevents coolant contamination and loss due to worn or damaged seals

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 O-ring gasket. Note that mounting hardware is not included, so reuse existing bolts or acquire appropriate replacements. Torque mounting bolts evenly to manufacturer specifications to prevent leaks. Bleed the cooling system after installation to remove trapped air and verify proper coolant flow.

Quality Assurance and Warranty Information

Dorman manufactures this thermostat housing assembly to meet or exceed OEM standards for fit, form, and function. The aluminum material and precise thermostat calibration contribute to reliable engine cooling system performance. This product includes a gasket and thermostat to simplify replacement. While mounting hardware is not included, the assembly is designed for straightforward installation on compatible Saturn models. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.