Dorman 902-5864 Engine Coolant Thermostat Housing Assembly

Overview of Dorman Engine Coolant Thermostat Housing Assembly

The Dorman 902-5864 Engine Coolant Thermostat Housing Assembly is designed for reliable temperature regulation in select Volvo models. This assembly includes a thermostat calibrated to open at 194°F, ensuring optimal engine performance and preventing overheating.

• Material: Durable black plastic construction
• Includes thermostat, gasket, and three mounting bolts
• Thermostat opening temperature: 194 degrees Fahrenheit
• Three mounting holes with precise bolt hole spacing for secure fit
• Compatible with multiple Volvo models including C30, C70, S40, S60, V50, V60, XC60, and XC70

Detailed Product Description

This engine coolant thermostat housing assembly by Dorman is engineered to meet the specifications of various Volvo vehicles such as the S60 Cross Country and V60 Cross Country. Constructed from black plastic, the housing offers corrosion resistance and durability under typical engine conditions. The assembly features a single outlet port and includes a standard gasket to ensure a tight seal and prevent coolant leaks. The thermostat included opens at 194°F, which helps maintain the engine within its optimal operating temperature range.

The housing’s flange dimensions and mounting hole spacing (ranging from 1 to 2.7 inches center to center) are designed for precise fitment, facilitating straightforward installation without modification. Although mounting hardware is not included beyond the three bolts provided, the package contains all necessary components for a complete replacement.

Compatible Volvo Models and Applications

This Dorman thermostat housing assembly is compatible with the following Volvo models: C30, C70, S40, S60, S60 Cross Country, V50, V60, V60 Cross Country, XC60, and XC70. It is an appropriate replacement part for owners seeking to restore proper coolant flow and temperature regulation in these vehicles.

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to thermostat failure
• Coolant leaks from cracked or damaged housing
• Erratic engine temperature readings
• Reduced engine efficiency caused by improper coolant flow
• Failed thermostat causing poor cabin heating performance

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included gasket to prevent coolant leaks and ensure a proper seal
• Verify bolt hole alignment using the specified bolt hole center measurements
• Replace mounting bolts if damaged or corroded for secure fastening
• Check coolant levels and bleed the system if necessary after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5864 thermostat housing assembly undergoes quality inspections to ensure durability and reliable performance. This product includes a standard warranty covering defects in material and workmanship, providing confidence in its long-term use.