This is a brand new fan control unit, built as a direct replacement for the original equipment fitted to the Honda TRX 400 Fourtrax Foreman FW, FE 4x4 ES and FM 4x4 from 1995 to 2004. It is manufactured to a standard that exceeds the OEM equipment, and every unit shipped is tested before it leaves the warehouse.
The fan control unit is the relay module that switches the cooling fan on and off in response to the temperature signal from the engine. When it fails, the fan either stops running altogether - which shows up as the machine overheating in slow going, in deep mud or on a long climb - or it sticks on and runs continuously, flattening the battery and putting needless hours on the fan motor. The unit is a compact sealed module measuring 65 mm long, 38 mm wide and 21 mm high, with two plugs and six pins, and it drops straight into the original mounting position on the loom. Part number RM17101, replacing Honda 38710-HM7-004.
Key Features
- Brand new fan control unit
- Direct replacement for the original equipment
- Quality exceeds the OEM equipment
- Two plugs and six pins, matching the original connector layout
- Compact sealed housing - 65 mm x 38 mm x 21 mm
- Every unit is tested before shipment
- No modification or loom alteration required
Technical Specs
| Specification |
Detail |
| Part Number |
RM17101 |
| Length |
65 mm |
| Width |
38 mm |
| Height |
21 mm |
| Number of Plugs |
2 |
| Number of Pins |
6 |
| Condition |
Brand new, tested before shipment |
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 |
| Honda TRX 400 Fourtrax Foreman FW |
1995-2004 |
| Honda TRX 400 Fourtrax Foreman FE 4x4 ES |
1995-2004 |
| Honda TRX 400 Fourtrax Foreman FM 4x4 |
1995-2004 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 38710-HM7-004 |
Honda |
Frequently Asked Questions
Will it fit without modification?
Yes. It is a direct replacement for the original unit on the listed TRX 400 Fourtrax Foreman models. The two plugs and six pins match the original connector layout, so the existing loom plugs straight in with no cutting or splicing.
What is included?
The fan control unit itself, tested and ready to fit. Re-use the original mounting and the existing loom connectors.
How do I know the old fan control has failed?
The two usual symptoms are opposites. Either the cooling fan never runs and the machine overheats when it is worked slowly, or the fan runs constantly from the moment the ignition is switched on and will not shut off, draining the battery. Before condemning the unit, check the fan motor itself and the temperature sensor, since either can produce the same behaviour.
Does the unit need any setting up after fitting?
No. It is a sealed module with no adjustment. Disconnect the battery before you start, plug the new unit in, refit it to the original mounting and reconnect. Installation should be carried out by a qualified technician.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
