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ATV City  |  SKU: RMS021-106036

MOSFET Regulator Rectifier – Honda TRX250/400 / Suzuki LTR450 / LTZ400 / Yamaha Grizzly / Raptor / Kodiak / Big Bear – Replaces 31600-HM8-003 / 5GT-81960-00-00 – 1997–2020

Regular price £80.20
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  • Standard delivery (2-4 working days) - £4.99 on eligible UK mainland orders under £50.

  • Express delivery - £6.99 on eligible UK mainland orders placed before 2pm.

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A Thank You to Our Valued Customers.

This MOSFET regulator rectifier runs cooler than all OEM diode-style regulators and features built-in overheat protection — rather than failing it will simply shut off temporarily, cool down, and resume operation. Covering a wide range of Honda, Suzuki, and Yamaha ATV applications from 1997 to 2020, it restores correct charging system function with no modification required. An opposite connector (main harness side) is included to address the common issue of melted or corroded original plugs. All units are tested before dispatch.


Fitment — Key Models (see full fitment chart for complete list)

Model Year Range
Honda TRX250 Recon / TE / TM 1997–2020
Honda TRX250EX Sportrax / TRX250X 2001–2020
Honda TRX400EX Sportrax / TRX400X 1999–2014
Suzuki LTR450 / LTR450Z QuadRacer 2006–2009
Suzuki LTZ400 Quadsport Z400 2009 / 2012–2014
Suzuki RMX450Z 2010–2011 / 2017–2019
Yamaha YFM125 Grizzly 2004–2013
Yamaha YFM250 Bear Tracker / Big Bear / Bruin / Raptor 2001–2013
Yamaha YFM350 Bruin / Grizzly / Grizzly IRS / Raptor / Wolverine 2004–2014
Yamaha YFM400 Big Bear / Big Bear IRS / Grizzly / Kodiak 2000–2012
Yamaha YFM450 Grizzly / Kodiak / Wolverine 2003–2014
Yamaha YFM600 Grizzly / YFM660R Raptor 1999–2005
Yamaha XT250 2013–2018

Please refer to the full fitment chart for the complete year-by-year model listing.


Key Features

Feature Detail
Type MOSFET Regulator Rectifier
Cooling Runs cooler than OEM diode-style regulators
Overheat Protection Built-in — shuts off temporarily, cools, then resumes
Components Higher-grade electrical — exceeds OEM spec
Includes Opposite connector (main harness side)
Quality Control All units tested before dispatch

OEM Cross-Reference

OEM Part Number Manufacturer
31600-HM8-003 / 31600-HM8-013 Honda
31600-HM8-B00 / 31600-HN1-A40 / 31600-HN1-A41 Honda
32800-05G00 / 32800-05G10 / 32800-05G11 Suzuki
5GT-81960-00-00 Yamaha
RM30101 RMStator

Specifications

Specification Detail
Component MOSFET Regulator Rectifier
Application Honda TRX250/400 / Suzuki LTR450/LTZ400 / Yamaha Grizzly/Raptor/Kodiak/Big Bear
Year Range 1997–2020
Includes Opposite connector (main harness side)
Condition New — tested before dispatch

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