Mosfet Voltage Regulator Rectifier for Mercury Outboard 30, 40, 50 & 60 EFI, Formula 60
Mosfet Voltage Regulator Rectifier for Mercury Outboard 30, 40, 50 & 60 EFI, Formula 60
SKU:RM30431
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Mosfet Voltage Regulator Rectifier RM30431 for Mercury Outboard
30, 40, 50 and 60 EFI and Formula 60 - OEM 893640T01
Brand new Mosfet voltage rectifier regulator for Mercury Outboard 30, 40, 50 and 60 EFI engines and the Formula 60. Stop burning your regulator rectifier - it is time to update or replace your voltage regulator with the advanced MOSFET type. It runs cooler than all OEM diode style regulators and has overheat protection, so rather than burn up it will simply turn off for a while and cool off. It is a direct replacement to your original unit and installs plug-and-play, direct fit.
MOSFET regulation runs cooler than a traditional shunt regulator and reduces the load on the stator, which the manufacturer describes as saving gas and giving more engine power, while delivering steady regulated energy that extends battery life and cold cranking capacity. The unit has an improved heat sink and improved charging capabilities with a higher grade of electric components, and the quality exceeds the OEM equipment. All shipped products are tested. It replaces OEM part number 893640T01.
Key Features
- MOSFET design, runs cooler than OEM diode style regulators
- Overheat protection - turns off and cools rather than burning up
- Direct replacement to your original unit
- Plug-and-play, direct fit, easy installation
- Reduces stator load, saving gas and freeing engine power
- Steady regulated energy extends battery life and cold cranking
- Improved heat sink and charging capabilities
- Higher grade of electric components, quality exceeds OEM
- Five wires at 158 mm and 198 mm on four plugs, 67 mm fixing centres
Technical Specs
| Specification | Detail |
|---|---|
| Part number | RM30431 |
| Type | Mosfet voltage regulator rectifier |
| Width | 62 mm |
| Length | 65 mm |
| Height | 25 mm |
| Fixation holes centre to centre | 67 mm |
| Wire lengths | 158 mm & 198 mm |
| Number of plugs | 4 |
| Number of pins | 5 |
| Number of wires | 5 |
| Minimum charging voltage | 14.5 V +/- 0.5 V |
| Maximum charging current | 50 A / 500 W |
| Open circuit voltage | < 15 V |
| Operating temperature range | -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 |
|---|---|
| Mercury Outboard 30 EFI | Not stated - confirm by OEM number |
| Mercury Outboard 40 EFI | Not stated - confirm by OEM number |
| Mercury Outboard 50 EFI | Not stated - confirm by OEM number |
| Mercury Outboard 60 EFI | Not stated - confirm by OEM number |
| Mercury Formula 60 | Not stated - confirm by OEM number |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 893640T01 | Cross reference |
| 893640-002 | Cross reference |
| 830179T1 | Cross reference |
| 830179T2 | Cross reference |
| 194-2115K1 | Cross reference |
| 194-3072K1 | Cross reference |
| 18-5732 | Cross reference |
Frequently Asked Questions
Does this fit without modification?
Yes. It is a direct replacement to your original unit, plug-and-play and direct fit. It has five wires in 158 mm and 198 mm lengths running to four plugs with five pins, and the mounting holes are 67 mm apart centre to centre. Confirm your original unit against the cross reference numbers above, principally 893640T01.
What is included?
The Mosfet voltage regulator rectifier with its fitted wiring and plugs. All shipped products are tested.
How do I know my old regulator has failed?
With the engine running the charging system should sit at 14.5 V +/- 0.5 V at the battery. A charge that never rises, or one that climbs past the 15 V open circuit figure, points to the regulator rectifier. Before installing the new unit, check the stator AC output, replace burned or corroded connectors, repair melted wiring and apply hi-temp dielectric grease on all connectors.
What safety precautions apply?
There is a risk of electric shock, so disconnect the battery before servicing. Mount the unit so the heat sink has airflow and keep the connectors dry and greased against salt corrosion.
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