Motorad 916-217 Engine Coolant Thermostat Housing Assembly

Overview of Motorad Integrated Housing Thermostat 916-217

The Motorad Integrated Housing Thermostat 916-217 is designed for precise engine temperature regulation in select BMW models. This engine coolant thermostat housing assembly ensures optimal cooling system performance with a reliable opening temperature of 217°F.

• Compatible with BMW 640i, 640i Gran Coupe, 640i xDrive, 640i xDrive Gran Coupe, 740Li, 740Li xDrive, ActiveHybrid 7, M2, M3, and M4
• Integrated Housing Thermostat product line for streamlined cooling system integration
• Opening temperature set at 217°F for accurate engine temperature control
• Constructed from durable plastic, stainless steel, and copper materials
• Includes a bleeder hole and jiggle pin for efficient coolant flow and air removal
• Features four outlet ports with varying diameters (1.03 in, 0.87 in, 1.51 in, 1.51 in)
• Does not include bolts, gaskets, or mounting hardware

Product Line Details: Integrated Housing Thermostat

The Motorad Integrated Housing Thermostat line combines the thermostat and housing into a single assembly, simplifying installation and improving reliability. This design reduces potential leak points and ensures consistent engine temperature management. The 916-217 part number represents this integrated approach, tailored specifically for various BMW models requiring a 217°F opening temperature.

Technical Description and Features

This engine coolant thermostat housing assembly is engineered with a combination of plastic, stainless steel, and copper to balance durability and thermal performance. The thermostat opens at 217 degrees Fahrenheit, allowing coolant to circulate once the engine reaches optimal operating temperature. The inclusion of a bleeder hole and jiggle pin helps eliminate trapped air within the cooling system, promoting efficient coolant flow and preventing overheating. The housing features four outlet ports with diameters of 1.03 inches, 0.87 inches, and two at 1.51 inches, accommodating the specific coolant routing requirements of compatible BMW vehicles.

Common Applications and Problem Resolution

• Regulates engine temperature to prevent overheating in BMW 640i and 740Li models
• Replaces faulty or leaking thermostat housings in BMW M2, M3, and M4 vehicles
• Restores proper coolant flow in ActiveHybrid 7 models experiencing temperature fluctuations
• Eliminates air pockets in the cooling system with built-in bleeder hole and jiggle pin
• Addresses thermostat opening failures that cause engine performance issues

Installation Notes and Tips

• Compatible with specific BMW models listed; verify fitment before installation
• Mounting hardware, bolts, and gaskets are not included and must be sourced separately
• Ensure the cooling system is properly bled using the bleeder hole and jiggle pin during installation
• Follow manufacturer torque specifications for secure assembly
• Inspect surrounding components for wear or damage during replacement

Quality Assurance and Warranty

Motorad maintains strict quality control standards for the Integrated Housing Thermostat line, including part number 916-217. Manufactured with high-quality materials, this thermostat housing assembly is designed to meet OEM specifications for durability and performance. Warranty information should be confirmed with the distributor or retailer at the time of purchase.