Dorman 902-5149 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly for Nissan and Infiniti

The Dorman 902-5149 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for select Nissan and Infiniti vehicles. This metal thermostat housing assembly includes a thermostat and gasket, ensuring a complete solution for your cooling system needs.

• Durable metal construction with natural finish
• Includes thermostat opening at 180°F for precise temperature control
• Comes with gasket for secure sealing and leak prevention
• Designed with two outlet ports and three mounting holes for proper fitment
• Compatible with Nissan 350Z, Pathfinder, FX35, Infiniti G35, and QX4 models

Product Details and Specifications

The Dorman 902-5149 thermostat housing assembly features a natural metal finish and a flange measuring 4.15 inches in length, 2.985 inches in width, and 0.66 inches in thickness. The inside diameter of the housing is 1.191 inches, accommodating the included thermostat that opens at 180 degrees Fahrenheit. This assembly includes a gasket to ensure a tight seal and prevent coolant leaks. It has two outlet ports and three mounting holes with bolt hole center distances of 2.195 inches, 2.289 inches, and 3.338 inches, designed to match OEM specifications for a secure fit. Note that mounting hardware is not included.

Compatible Vehicles and Applications

This thermostat housing assembly is compatible with various Nissan and Infiniti models, including the Nissan 350Z, Pathfinder, FX35, and Infiniti G35 and QX4. It is intended for use in the engine cooling system to regulate coolant flow and maintain engine temperature within optimal operating ranges.

• Prevents engine overheating by regulating coolant flow
• Replaces worn or damaged thermostat housing assemblies
• Helps resolve coolant leaks around the thermostat housing
• Restores proper engine temperature control for improved performance
• Addresses issues related to thermostat failure or sticking

Installation Notes and Tips

When installing the Dorman 902-5149 thermostat housing assembly, ensure the engine is cool before beginning work. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly before placing the new gasket and housing assembly. Torque mounting bolts to manufacturer specifications. Since mounting hardware is not included, reuse existing bolts or obtain OEM replacements as needed. Verify proper thermostat operation after installation by monitoring engine temperature during initial operation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5149 thermostat housing assembly undergoes quality checks to ensure durability and reliable performance. This product includes a gasket and thermostat to provide a complete replacement solution. Warranty coverage details can be obtained from Dorman directly or through authorized distributors.