Motorad 246-180 Engine Coolant Thermostat

Overview of Motorad Standard Engine Coolant Thermostat 246-180

The Motorad Standard Engine Coolant Thermostat 246-180 is engineered to regulate engine temperature efficiently for select BMW and Rolls-Royce models. Designed with precise dimensions and a 180°F start-to-open temperature, this thermostat ensures optimal coolant flow and engine performance.

• Sealing flange outside diameter: 2.64 inches
• Height between flanges: 1.39 inches
• Overall height: 1.98 inches
• Bypass diameter: 1.46 inches
• Bypass length: 1.36 inches
• Flange thickness: 0.05 inches
• Start to open temperature: 180°F
• Standard type thermostat without jiggle pin or included gasket

Detailed Product Description

This Motorad Standard thermostat, part number 246-180, is designed to maintain engine temperature by opening at 180 degrees Fahrenheit, allowing coolant to circulate and prevent overheating. Its standard type construction fits specific BMW models such as the 320i, 528e, 528i, 530i, and 533i, as well as Rolls-Royce vehicles including the Silver Shadow II, Silver Spirit, Silver Spur, and Touring Limousine. The thermostat features a sealing flange outside diameter of 2.64 inches and a height between flanges of 1.39 inches, ensuring a secure fit within the cooling system. The bypass diameter and length (1.46 inches and 1.36 inches respectively) facilitate proper coolant flow during engine warm-up phases. This part does not include a gasket or jiggle pin weep hole and requires a separate installation tool.

About the Motorad Standard Product Line

The Standard product line from Motorad offers reliable, OEM-quality engine cooling components designed to meet factory specifications. This line focuses on delivering consistent performance and fitment for a range of vehicles, including luxury and performance models. The 246-180 thermostat exemplifies the Standard line’s commitment to precision engineering and durability in engine temperature regulation.

Common Applications and Issues Addressed

• Prevents engine overheating by regulating coolant flow
• Ensures proper engine warm-up by opening at 180°F
• Replaces faulty or stuck thermostats causing temperature fluctuations
• Restores cooling system efficiency in BMW 320i, 528e, 528i, 530i, 533i
• Compatible replacement for Rolls-Royce Silver Shadow II, Silver Spirit, Silver Spur, Touring Limousine

Installation Notes and Tips

Installation of the Motorad 246-180 thermostat requires removal of the old thermostat housing and careful placement of the new thermostat to ensure proper sealing. Note that this part does not include a gasket or installation tool, so these items must be sourced separately. Verify the sealing flange dimensions and bypass measurements to confirm compatibility. Follow manufacturer torque specifications when securing the thermostat housing to avoid leaks.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided here, Motorad products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or supplier information for exact warranty terms.