Dorman 902-5249 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly for Nissan and Infiniti

The Dorman 902-5249 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for select Nissan and Infiniti vehicles. This assembly includes a thermostat calibrated to open at 180 degrees Fahrenheit, ensuring efficient coolant flow and engine performance.

• Constructed from durable aluminum and steel materials for long-lasting use
• Includes thermostat and gasket for a complete replacement solution
• Natural color finish with precise flange dimensions for proper fitment
• Compatible with multiple Nissan and Infiniti models including Frontier, FX35, G35, M35, NV1500, NV2500, NV3500, Pathfinder, and Xterra
• Features two outlet ports and three mounting holes for secure installation

Detailed Product Features and Specifications

The Dorman 902-5249 thermostat housing assembly is engineered with a combination of aluminum and steel components to provide strength and corrosion resistance. The housing features a flange length of 4.143 inches, flange width of 2.74 inches, and flange thickness of 0.665 inches, ensuring a precise fit on compatible engines. The inside diameter measures 1.986 inches, accommodating proper coolant flow. This assembly includes a thermostat that opens at 180 degrees Fahrenheit, helping regulate engine temperature effectively. The package contains one thermostat housing, one thermostat, and one gasket to facilitate a straightforward replacement process.

Compatible Vehicles and Applications

This thermostat housing assembly is compatible with a range of Nissan and Infiniti vehicles, including:

• Nissan Frontier
• Nissan Pathfinder
• Nissan Xterra
• Nissan NV1500, NV2500, NV3500
• Infiniti FX35
• Infiniti G35
• Infiniti M35

Use this part number 902-5249 when searching for a replacement thermostat housing assembly for these models to ensure proper fit and function.

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to thermostat failure
• Coolant leaks from damaged or cracked housing
• Poor engine temperature regulation affecting performance
• Corrosion or wear causing coolant flow restrictions
• Failed thermostat causing improper engine warm-up

Installation Notes and Tips

Installation requires removal of the old thermostat housing and careful cleaning of the mounting surface. The included gasket should be properly seated to prevent leaks. Note that mounting hardware is not included, so original bolts should be reused or replaced as needed. Ensure the thermostat is oriented correctly with the 180-degree opening temperature facing the engine coolant flow. Verify all connections are secure before refilling the cooling system.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 902-5249 thermostat housing assembly undergoes rigorous quality control to ensure durability and reliable operation. This product includes a gasket and thermostat to provide a comprehensive replacement solution. Please refer to Dorman's warranty policy for specific coverage details.