Motorad 459-160 Engine Coolant Thermostat

Engine Cooling Control for BMW and Porsche

The Motorad Standard 459-160 engine coolant thermostat is built for precise temperature control in demanding cooling systems. It uses OEM-quality materials and manufacturing processes, with a copper case and wax compound that respond quickly to coolant temperature changes.

Compatible With 2000-2003 BMW M5, 2000-2003 BMW Z8, 2008-2013 BMW M3, 2010 BMW M5, 2010 BMW M6, and 2008-2010 Porsche Cayenne. The 160°F calibration supports applications that require a lower opening temperature, and the included rubber seal helps support a proper flange seal during service.

Key Features

• Motorad Standard part number 459-160
• 160°F thermostat calibration
• Copper case with wax compound for responsive temperature changes
• OEM-quality materials and OE-supplier manufacturing standards
• Rubber gasket/seal included
• 2.87 in sealing flange outside diameter
• 2.87 in bypass diameter
• 0.27 in flange thickness
• No jiggle pin weep hole

Product Details

The Motorad Standard line focuses on direct-fit cooling system service parts built to OEM specifications and processes. This thermostat is engineered for vehicles that need stable coolant regulation under load, including BMW M3, BMW M5, BMW M6, BMW Z8, and Porsche Cayenne applications listed in the fitment data. Part number 459-160 is a practical replacement choice when the cooling system calls for a 160°F thermostat and a rubber flange seal.

This part cross-references 160-954 and 45960 for the same application.

What This Thermostat Helps Address

• Engine running hotter than expected due to a worn thermostat
• Delayed coolant flow control during warm-up
• Temperature instability in the cooling system
• Coolant seepage at the thermostat flange when the seal is deteriorated
• Service replacement for a 160°F thermostat specification

Installation Notes and Tips

Verify the thermostat temperature rating, flange dimensions, and seal style before installation. Replace the thermostat with the included rubber seal in place, and inspect the housing, mating surfaces, and coolant condition during service. Follow the vehicle manufacturer’s cooling system bleed procedure after installation to help remove trapped air.

Quality Assurance

Motorad manufactures this thermostat to OEM quality materials and safety standards as an OE supplier, with production aligned to OEM specifications and processes. The copper case and wax element are selected to provide consistent response in demanding automotive cooling systems.