Mosfet Regulator Rectifier for Ducati 1998-2012, Honda 1986-2003 & Suzuki 1997-2012
Mosfet Regulator Rectifier for Ducati 1998-2012, Honda 1986-2003 & Suzuki 1997-2012
SKU:RM30504H
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Mosfet Voltage Regulator Rectifier
Ducati 1998-2012, Honda 1986-2003 and Suzuki 1997-2012
This is a brand new MOSFET three phase voltage regulator rectifier, designed to replace the traditional diode style regulator fitted as standard. A conventional shunt regulator throws away surplus charging output as heat, which is why the original units on these machines run so hot and eventually fail. A MOSFET unit switches instead of dissipating, so it runs noticeably cooler, puts less load on the stator, saves fuel and extends battery life. It also carries overheat protection and a higher grade of electric components than the part it replaces.
The unit measures 90 mm long by 95 mm wide by 30 mm high, with 75 mm centre to centre between the fixation holes and wire lengths of 575 mm and 550 mm. It carries two plugs, seven pins and seven wires, and is rated to a maximum charging current of 50 A or 500 W with a minimum charging voltage of 14.5 V. Installation is plug and play. Because this MOSFET unit cross references to a long list of Ducati, Honda and Suzuki part numbers, check the number on your original regulator against the table below before ordering. Part reference RM30504H.
Key Features
- Brand new MOSFET three phase regulator rectifier
- Replaces traditional diode style regulators
- Runs cooler than the OEM equipment
- Overheat protection built in
- Reduces stator load, saves fuel and extends battery life
- Improved heat dissipation and higher grade components
- Plug and play installation
Technical Specs
| Specification | Detail |
|---|---|
| Width | 95 mm |
| Length | 90 mm |
| Height | 30 mm |
| Wire lengths | 575 mm and 550 mm |
| Distance between fixation holes | 75 mm (centre to centre) |
| Number of plugs | 2 |
| Number of pins | 7 |
| Number of wires | 7 |
| Minimum charging voltage | 14.5 V +/- 0.5 V |
| Maximum charging current | 50 A / 500 W |
| Open circuit voltage | Under 15 V |
| Operating temperature | -20 C to 85 C |
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 |
|---|---|
| Ducati | 1998-2012 |
| Honda | 1986-2003 |
| Suzuki | 1997-2012 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 54040261A | Ducati |
| 54040111C | Ducati |
| 54040101A | Ducati |
| 540.1.016.1A | Ducati |
| 31600-MZ5-003 | Honda |
| 31600-MZ5-000 | Honda |
| 31600-MN4-018 | Honda |
| 31600-MN4-008 | Honda |
| 31600-ML7-008 | Honda |
| 31600-ML0-721 | Honda |
| 31600-MBG-305 | Honda |
| 31600-MBG-003 | Honda |
| 31600-KV0-018 | Honda |
| 31600-KV0-008 | Honda |
| 32800-06G01 | Suzuki |
| 32800-06G00 | Suzuki |
| 32800-02F00 | Suzuki |
| RM30F04-R01 | RMSTATOR |
| RM30504H-R01 | RMSTATOR |
Frequently Asked Questions
Will this fit without modification?
It is a plug and play replacement with two plugs, seven pins and seven wires and 75 mm centre to centre mounting holes. Because it covers three different makes, match the OEM number on your existing regulator to the cross reference table first so you know it is the right variant for your machine.
What is included?
One brand new MOSFET three phase voltage regulator rectifier, part reference RM30504H.
How do I know my old regulator rectifier has failed?
With the engine running the battery should read about 14.5 V. If it stays at resting battery voltage the unit is not charging; above 15 V it is not regulating and will overcharge the battery. Flat batteries, headlights that brighten and dim with the revs, a regulator body too hot to touch and melted connector pins are the classic signs on these machines.
What is the advantage of a MOSFET regulator over the original?
A MOSFET unit dissipates far less waste heat than a traditional diode style regulator, so it runs cooler, places less load on the stator, saves fuel and extends battery life. It also has overheat protection, which the original does not.
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