Mosfet Voltage Regulator Rectifier for Honda TRX 420 Rancher & Big Red MUV700 2007-2014
Mosfet Voltage Regulator Rectifier for Honda TRX 420 Rancher & Big Red MUV700 2007-2014
SKU:RM30514H
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Mosfet Regulator Rectifier for Honda TRX 420 Rancher and Big Red MUV700
Honda TRX 420 Rancher and Big Red MUV700, 2007-2014 - Part Number RM30514H
A brand new Mosfet voltage rectifier regulator, built as a direct replacement for the original diode-style unit fitted to the Honda TRX 420 Rancher and the Big Red MUV700 from 2007 to 2014. It is a plug-and-play, direct fit part: the housing, the mounting hole spacing and the connectors match the original, so it drops straight into the existing bracket and plugs into the existing loom with no assembly and no modification required. The opposite connector for the main harness side is supplied with the unit, so a corroded or melted plug on the bike side can be renewed at the same time.
Mosfet switching is the reason to fit this unit rather than another diode-style replacement. It runs cooler than all OEM diode style regulators, and it carries built-in overheat protection - rather than burn up it will simply turn off for a while and cool off, which protects both the regulator and the stator behind it. An improved heat sink, higher grade electrical components and improved charging capability mean the quality exceeds the OEM equipment. Every unit is tested before it is shipped.
Key Features
- Mosfet type regulator rectifier - runs cooler than all OEM diode style regulators
- Overheat protection: it turns off and cools down rather than burning up
- Direct replacement for the original unit - plug-and-play, direct fit, easy installation
- No assembly required
- Improved heat sink and improved charging capabilities
- Higher grade of electric components - quality exceeds the OEM equipment
- Opposite connector (main harness side) included
- Rated to 50 A / 500 W maximum charging current
Technical Specs
| Specification | Detail |
|---|---|
| Part Number | RM30514H |
| Type | Mosfet voltage regulator rectifier |
| Width | 85 mm |
| Length | 110 mm |
| Height | 40 mm |
| Fixation Holes, Centre to Centre | 80 mm |
| Number of Plugs | 2 |
| Number of Pins | 5 |
| Minimum Charging Voltage | 14.5 V +/- 0.5 V |
| Maximum Charging Current | 50 A / 500 W |
| Open Circuit Voltage | Less than 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 |
|---|---|
| Honda TRX 420 Rancher | 2007-2014 |
| Honda Big Red MUV700 | 2007-2014 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 31600-HP5-601 | Honda |
Frequently Asked Questions
Does this need any modification to fit?
No. It is a direct replacement for the original unit - plug-and-play, direct fit, with no assembly required. The two plugs and five pins match the original, and the mounting holes are 80 mm centre to centre as on the factory part.
What is included?
The Mosfet regulator rectifier itself, plus the opposite connector for the main harness side so that a damaged plug on the machine can be replaced at the same time.
How do I know my old regulator has failed?
A healthy charging system holds around 14.5 V at the battery with the engine running. A flat or boiling battery, headlights that brighten and dim with engine speed, or a regulator body that is too hot to touch after a short ride all point to a failed unit. Measured at the battery, a reading that stays at battery voltage or climbs well above 15 V indicates the regulator is no longer controlling output.
Why choose a Mosfet unit over the original diode type?
Mosfet regulators run cooler than all OEM diode style regulators, and this one adds overheat protection - instead of burning up it turns off for a while and cools off. Combined with the improved heat sink and higher grade components, that makes it a more durable fit than a like-for-like diode replacement.
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