This is a brand new angle sensor built as a direct replacement for the original unit fitted to the Honda TRX 400 Rancher and the TRX 500 Fourtrax Foreman Rubicon. It is a plug-and-play, direct fit part with a single three-terminal plug, so it bolts on and connects to the standard harness with no modification and no assembly required.
The sensor measures 55 mm long by 38 mm on the outside diameter and 16 mm high, with 40 mm between the two fixation holes and a single plug carrying three terminals. Every unit is tested before it is shipped. The manufacturer notes that all item pictures are accurate, so if you are in any doubt about which sensor your machine carries, compare the images against your original part before ordering.
The angle sensor reports the position of the electric shift mechanism back to the control unit. When it goes out of tolerance or fails outright, the machine typically refuses to change gear, sticks in one gear, or throws a shift fault and flashes its indicator. Because the sensor sits low on the engine where it takes water, mud and pressure washing, it is a common failure on these Honda electric-shift quads and is usually far cheaper to replace than the shift motor it is often blamed on.
Key Features
- Brand new angle sensor, a direct replacement for the original unit
- Plug-and-play, direct fit, easy installation
- No assembly required
- Single plug with three terminals
- 40 mm between the fixation holes, matching the original mounting
- Replaces four Honda OEM part references with one unit
- All products shipped are tested
Technical Specs
| Specification |
Detail |
| Manufacturer part number |
RM50500 |
| Part type |
Angle sensor |
| Height |
16 mm |
| Length |
55 mm |
| Outside diameter |
38 mm |
| Distance between fixation holes |
40 mm |
| Number of plugs |
1 |
| Number of terminals |
3 |
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 Rancher |
2001-2014 |
| Honda TRX 500 Fourtrax Foreman Rubicon |
2001-2014 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 38800-HN2-000 |
Honda |
| 38800-HN2-005 |
Honda |
| 38800-HN2-015 |
Honda |
| 06380-HN2-305 |
Honda |
Frequently Asked Questions
Will this angle sensor fit without modification?
Yes. It is a plug-and-play direct replacement for the original unit, with the same 40 mm fixation hole spacing and the same single three-terminal plug. No assembly and no wiring changes are required. Compare the number on your original sensor against the four Honda references in the cross reference table before ordering.
What is included?
One brand new angle sensor with its single three-terminal plug. Mounting hardware and seals are re-used from the original installation.
How do I know my old angle sensor has failed?
The usual symptoms are an electric-shift machine that will not change gear, one that sticks in a single gear, or one that flashes a shift fault warning. Because the sensor lives low on the engine and is regularly hit by water and mud, corrosion in the plug or inside the sensor body is a frequent cause. It is worth confirming the sensor before condemning the shift motor or the control unit, as the sensor is the cheaper and more common failure.
Which Honda part numbers does this replace?
It replaces 38800-HN2-000, 38800-HN2-005, 38800-HN2-015 and 06380-HN2-305. Honda superseded the reference several times over the production run, so your original may carry any one of those four numbers.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
