Four Seasons 85955 Engine Coolant Thermostat Housing

Overview of Four Seasons Thermostat Housing 85955

The Four Seasons Thermostat Housing 85955 is designed for precise engine coolant management in select BMW models. This integrated thermostat housing includes a thermostat and gasket, ensuring a reliable seal and efficient temperature regulation for your vehicle's cooling system.

• Constructed from durable aluminum for corrosion resistance
• Includes integrated thermostat and gasket for complete installation
• Four mounting holes with 2.72-inch bolt hole center spacing
• Outlet port diameter of 38.000 mm and inlet port diameter of 1.146 inches
• Flange thickness of 0.555 inches and overall height of 2.224 inches
• Meets or exceeds OEM specifications for quality and fit

Four Seasons Thermostat Housing Product Line Details

The Four Seasons Thermostat Housing product line focuses on engine coolant components designed to maintain optimal engine temperature. This line integrates the thermostat directly into the housing, simplifying installation and reducing potential leak points. The 85955 model is engineered to meet or exceed OEM standards, providing a reliable replacement part for BMW vehicles requiring precise coolant flow control.

Detailed Product Description

This engine coolant thermostat housing is made from aluminum, offering strength and resistance to corrosion under high-temperature conditions. The integrated thermostat housing design includes a thermostat and gasket, ensuring a secure and leak-free fit. With four mounting holes spaced 2.72 inches apart center-to-center, it provides a stable and accurate fitment. The outlet port diameter measures 38.000 mm, while the inlet port diameter is 1.146 inches, matching OEM specifications for proper coolant flow. The flange thickness of 0.555 inches and overall height of 2.224 inches contribute to the part's durability and compatibility with the cooling system.

Compatible BMW Models and Applications

• BMW 320i, 323Ci, 323i, 323is, 323ti
• BMW 325Ci, 325i, 325xi
• BMW 328Ci, 328i, 328is
• BMW 330Ci, 330i, 330xi
• BMW 525i, 528i, 530i
• BMW X3, X5, Z3, Z4

Common Issues Addressed by This Thermostat Housing

• Engine overheating due to thermostat failure or housing leaks
• Coolant leaks from damaged or warped thermostat housing
• Inconsistent engine temperature regulation affecting performance
• Corrosion-related damage compromising coolant flow
• Replacement of worn or OEM thermostat housings to restore cooling efficiency

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns. Remove the old thermostat housing carefully, cleaning the mounting surface to remove any debris or old gasket material. Use the included gasket to ensure a proper seal and torque the four mounting bolts evenly to the manufacturer’s specifications. Verify that the thermostat is correctly seated within the housing before final assembly. After installation, refill the cooling system and check for leaks during engine warm-up.

Quality Assurance and Warranty

The Four Seasons Thermostat Housing 85955 meets or exceeds OEM standards, providing reliable performance and fitment for compatible BMW models. This part is manufactured with quality materials and precision engineering to ensure durability and proper function. Warranty coverage details should be confirmed with the distributor or manufacturer.