Thermostat with O-Ring - E28 M5 and E24 M6 - 80 Degree Celsius

This part is listed by BMW as BMW part number 11531307737 (11-53-1-307-737) and is described as OEM Coolant Thermostat for the S38 engine on E28 M5 (1987,1988) and E24 M6 (1987, 1988, 1989). 

Thermostat O-ring included

This thermostat is made by Mahle / Behr, the original equipment (OE) manufacturer to BMW, and is the brand we prefer over a lower quality alternative or paying much more for a Genuine BMW thermostat. This is the thermostat we'd choose on our own BimmerWorld owned and employee cars, and what we'd suggest to do the job right on any E28 M5 or E24 M6. 

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.