Mosfet Regulator Rectifier for Polaris RZR 900/1000, Ranger & Sportsman 2012-2025
Mosfet Regulator Rectifier for Polaris RZR 900/1000, Ranger & Sportsman 2012-2025
SKU:RMS020-103775
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Mosfet Regulator Rectifier for Polaris RZR, Ranger, Sportsman, ACE and General
RZR 900/1000, Ranger 570/1000, Sportsman, ACE and General - 2012 to 2025 - Part RMS020-103775
A brand new MOSFET voltage rectifier regulator built to replace the traditional diode-style regulator fitted to a wide range of Polaris RZR, Ranger, Sportsman, ACE and General machines built between 2012 and 2025. MOSFET regulation switches rather than burns off the excess output of the stator, so the unit runs at a noticeably lower temperature than the diode-style regulator it supersedes. Lower running temperature is the single biggest factor in regulator life, which is why the original units so often fail in the same way twice.
The regulator carries built-in overheat protection: instead of burning out under a sustained overload it simply deactivates temporarily and resumes once it has cooled. It is supplied with a connectorised wiring harness so that installation is plug-and-play - the unit is a direct replacement for the original and no modification to the machine's loom is required. Every unit is built with a higher grade of electrical components than the original equipment and is tested before it leaves the factory.
Key Features
- MOSFET regulation - runs cooler than the OEM diode-style regulator
- Overheat protection: the unit switches off temporarily rather than burning out
- Direct replacement, plug-and-play, no assembly or loom modification required
- Supplied with a connectorised wiring harness
- Maximum charging current of 50 A / 500 W
- Minimum charging voltage of 14.5 V +/- 0.5 V
- Rated for operation from -20°C to 85°C
- Higher grade of electrical components than the original unit
- Every unit is tested before shipping
Technical Specs
| Specification | Detail |
|---|---|
| Part number | RMS020-103775 |
| Width | 110 mm |
| Length | 121 mm |
| Height | 43 mm |
| Fixing hole centres | 85 mm |
| Number of plugs | 2 |
| Number of pins | 5 |
| Number of wires | 5 |
| Wire length | 2500 mm |
| 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 |
|---|---|
| Polaris RZR 900 | 2012-2025 |
| Polaris RZR 1000 | 2012-2025 |
| Polaris Ranger 570 | 2012-2025 |
| Polaris Ranger 1000 | 2012-2025 |
| Polaris Sportsman | 2012-2025 |
| Polaris ACE | 2012-2025 |
| Polaris General | 2012-2025 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 4014856 | Polaris (regulator) |
| 4014405 | Polaris (regulator) |
| 4015231 | Polaris (regulator) |
| 4016868 | Polaris (regulator) |
| 2207959 | Polaris (regulator) |
| 4012941 | Polaris (harness) |
| 4013978 | Polaris (harness) |
| 4015816 | Polaris (harness) |
| 4015215 | Polaris |
Frequently Asked Questions
Do I need to modify anything to fit this regulator?
No. This is a direct replacement for the original unit. It is plug-and-play, no assembly is required, and the fixing holes are on 85 mm centres to match the original mounting.
What is included?
The MOSFET voltage regulator complete with its connectorised wiring harness.
How do I know my old regulator has failed?
A healthy charging system holds at least 14.5 V +/- 0.5 V at the battery with the engine running. Persistently low readings, a battery that will not hold charge, boiling or overcharging above 15 V, or a regulator body that is discoloured or has melted connectors all point to a failed unit.
What makes a MOSFET regulator better than the original?
A diode-style regulator dissipates surplus stator output as heat, and that heat is what eventually destroys it. A MOSFET unit switches instead, so it runs cooler, and this one adds overheat protection that temporarily deactivates the regulator rather than allowing it to burn out.
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