Radiator Fan Thermo Switch For Honda CBR1100XX, CBR600SE, CBR900RR, Magna 750

This is a replacement radiator fan thermo switch that fits a bunch of popular Honda models, including the CBR1100XX, CBR600SE, CBR900RR, PC800, and the Magna 750.

It’s a brand-new, unbranded part that does the job of the OEM ones like 37760-MT2-003 and 37760-MR1-003.

The bolt size is M16 with a 1.5mm pitch, so it screws right into the radiator.

When your engine hits the right temp, this switch tells the fan to kick on and cool things down.

If your fan isn't coming on and you've checked the fuse, this little sensor is often the culprit.

An easy fix to keep your bike from overheating in traffic.