Fan Heat Thermal Sensor Switch - Part RM17102
Suzuki Eiger, Quadrunner and KingQuad 250, 300 and 400 cc, 1991-2010
This is a brand new fan heat thermal sensor switch for the Suzuki 250, 300 and 400 cc utility quads. The switch screws into the cooling system and closes a circuit once coolant temperature reaches the trigger point, bringing the radiator fan on and switching it off again as the engine cools. It is a simple part, but when it stops working the fan either never runs at all, which leads to overheating in slow going, or runs constantly and flattens the battery.
The unit is a direct replacement for the original, measuring 29 mm long with 15 mm between the fixing holes and a 165 mm harness. It replaces Suzuki part number 17680-19B70. Every switch is tested before it is shipped, and the photographs on this listing show the actual part, so if you have any doubt about which sensor is on your machine, compare your original against the images and the dimensions below.
Key Features
- Brand new fan heat thermal sensor switch
- Direct replacement for the original unit - no modification needed
- Replaces Suzuki part number 17680-19B70
- 29 mm body with a 165 mm harness
- 15 mm between the fixing holes
- Every unit is tested before dispatch
- Dispatched from the UK with a 12-month warranty
Technical Specs
| Specification |
Detail |
| Part number |
RM17102 |
| Length |
29 mm |
| Harness length |
165 mm |
| Distance between fixation holes |
15 mm |
| Installation |
Direct replacement |
| Engine size range |
250, 300 and 400 cc |
| Condition |
Brand new, tested before shipping |
Vehicle Fitment Guide
Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.
| Make & Model |
Years |
| Suzuki Eiger 250, 300, 400 cc |
1991-2010 |
| Suzuki Quadrunner 250, 300, 400 cc |
1991-2010 |
| Suzuki KingQuad 250, 300, 400 cc |
1991-2010 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 17680-19B70 |
Suzuki |
Frequently Asked Questions
Will it fit without modification?
Yes. It is a direct replacement for the original switch, with the same 29 mm body, 15 mm hole spacing and 165 mm harness, so it mounts and plugs in exactly as the part you are removing. Compare your original against those figures and the part number 17680-19B70 before ordering.
What is included?
The thermal sensor switch with its 165 mm harness. No sealing washer or additional hardware is listed for this part, so reuse the original seal and fixings from the switch you take off.
How do I know the old sensor has failed?
There are two typical patterns. Either the fan never runs and the engine overheats when you are working the machine slowly, or the fan runs continuously from a cold start and drains the battery. You can check the switch with a multimeter on continuity: a healthy unit is open when cold and closes as it heats up. One that is permanently open or permanently closed has failed.
My quad is a 250 - is this the right sensor?
This switch covers the Suzuki Eiger, Quadrunner and KingQuad in 250, 300 and 400 cc capacities between 1991 and 2010. The safest check is the part number stamped on your original unit: if it reads 17680-19B70, this is the correct replacement.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
