Generator Stator for KTM, Husqvarna & Husaberg
KTM 250-530 EXC, XC-W, SX and MXC-G, Husqvarna FS and TE, Husaberg FS, 1999-2019 · Part number RMS010-104105
This is a brand new aftermarket generator stator, built as a direct replacement for the original charging and ignition source unit fitted across the KTM 250, 300, 400, 450, 525 and 530 EXC, XC-W, SX and MXC-G range, the Husqvarna FS 450 and TE 250 and TE 300, and the Husaberg FS 550 and FS 650, from 1999 to 2019. It is a plug-and-play, direct fit part that installs without cutting, splicing or otherwise modifying the standard loom.
The unit is wound with the highest grade of copper winding, resistant to 200 degrees Celsius, on the highest grade of lamination materials, and every stator is tested before it is shipped. It carries four wires through three plugs and includes both the charging winding and the separate source coil circuit, so the same part serves the lighting and charging side and the ignition supply. The stator is supplied with its connector and rubber grommet fitted, and an opposite connector for the main harness side is included in the box, since these are often melted, corroded or defective by the time a stator needs replacing.
Key Features
- Direct replacement for the original unit - plug-and-play, direct fit, easy installation
- Highest grade of copper winding, resistant to 200 degrees Celsius
- Highest grade of lamination materials
- Four wires through three plugs, covering both the alternator and the source coil circuit
- Supplied with connector and rubber grommet fitted
- Opposite connector for the main harness side included
- Every unit tested before shipping
Technical Specs
| Specification |
Detail |
| Interior diameter |
29 mm |
| Exterior diameter |
83 mm |
| Thickness |
13 mm |
| Wire length, stator to grommet |
60 mm |
| Wire length, grommet to plug |
490 mm |
| Number of wires |
4 |
| Number of plugs |
3 |
| Number of pins |
4 |
| Alternator resistance, white to yellow |
0.5 ohms, plus or minus 20% |
| Source coil resistance, black/red to red/white |
30 ohms, plus or minus 20% |
| Winding temperature rating |
200 degrees Celsius |
| Part number |
RMS010-104105 |
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 |
| KTM 250, 300, 400, 450, 525 and 530 - EXC, XC-W, SX, MXC-G |
1999-2019 |
| Husqvarna FS 450 |
1999-2019 |
| Husqvarna TE 250 and TE 300 |
1999-2019 |
| Husaberg FS 550 and FS 650 |
1999-2019 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number |
Manufacturer / Brand |
| 55439204000 |
KTM |
| 77039104000 |
KTM |
| 59039104200 |
KTM |
| 59039104000 |
KTM |
| 80039004000 |
KTM |
Frequently Asked Questions
Will this stator fit without modifying the wiring?
Yes. It is a direct fit, plug-and-play replacement using the same four-wire, three-plug arrangement as the original, so no cutting or splicing of the standard loom is needed.
What is included in the box?
The stator with its connector and rubber grommet fitted, plus an opposite connector for the main harness side.
How do I tell whether my old stator has failed?
With the plugs disconnected, measure the alternator winding from white to yellow, which should read about 0.5 ohms within 20%, and the source coil from black/red to red/white, which should read about 30 ohms within 20%. An open circuit on either reading, or continuity from any winding to earth, means the stator has failed. Typical symptoms are a battery that will not stay charged, dim lighting, or a machine that will not fire because the source coil has gone open circuit.
Does this one part cover both the charging and the ignition supply?
Yes. The four wires carry both the alternator output and the separate source coil circuit, which is why the resistance figures above are quoted for two different pairs.
Dispatched from the UK · 12-month warranty · Fitment support from our technical team
