Will this magneto stator fit my Honda TRX420 Rancher, and how do I check compatibility?

This 18 coil DC magneto stator is designed to fit Honda TRX420 Rancher FE, FM, TE, TM, FPE, and FPM models produced from 2007 to 2013, as a replacement for OEM number 31120-HP5-A51. To ensure compatibility, please match your original stator’s OEM part number (31120-HP5-A51), connector style, and part dimensions with this product before purchasing.

What common ATV problems does replacing the stator solve?

Replacing your stator can resolve issues such as the battery not charging, weak or no spark, hard starting, or irregular voltage output. Since this part is essential to your charging and ignition system, installing a new stator can restore reliable performance and help your Honda TRX420 Rancher run smoothly.

What’s included with this Honda TRX420 Rancher stator purchase?

Your order includes one brand new aftermarket stator with copper windings, copper-clad steel wire, and a durable aluminum plate. It’s a direct-fit, OEM-style replacement for the original part (31120-HP5-A51) on Honda TRX420 Ranchers from 2007–2013. A 90-day warranty gives you added peace of mind.

Is installation of this stator difficult? Do I need any special tools or professional help?

While this stator is designed for direct fitment, installation does require disassembling parts of your ATV and connecting electrical components. Professional installation is recommended for best results, especially if you’re not experienced with ATV electrical systems. Always check the rest of your charging system components during replacement to ensure optimal performance.

Why choose this aftermarket stator over a factory Honda replacement?

This aftermarket stator offers reliable performance and durability with its copper windings and quality materials, all at a competitive price. It’s a precise, direct-fit replacement for OEM 31120-HP5-A51. Backed by a 90-day warranty, it’s a practical solution for getting your 2007–2013 Honda TRX420 Rancher back on the trail without breaking the bank.

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Honda TRX420 Rancher FE FM TE TM FPE FPM Magneto Stator 2007–2013 | 31120-HP5-A51

$56.99

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Product Overview

Restore reliable charging and ignition performance to your ATV with this 18 coil DC magneto stator, designed for Honda TRX420 Rancher applications from 2007 to 2013.

Built to replace OEM 31120-HP5-A51, this unit helps solve common issues such as battery not charging, hard starting, weak spark, unstable voltage, and intermittent electrical failure.

Manufactured with copper windings, full copper-clad steel wire, and an aluminum plate, it is designed to provide stable electrical output, reliable ignition performance, and long service life.

Product Compatibility

Brand	Model	Engine / HP / CC	Year Range	Notes
Honda	TRX420FE Rancher 4x4 ES	420cc	2007–2013	OEM-family fitment under 31120-HP5-A51
Honda	TRX420FM Rancher 4x4	420cc	2007–2013	OEM-family fitment under 31120-HP5-A51
Honda	TRX420TE Rancher ES	420cc	2007–2013	Replacement-family fitment shown by stator suppliers
Honda	TRX420TM Rancher	420cc	2007–2013	Replacement-family fitment shown by stator suppliers
Honda	TRX420FPE Rancher EPS	420cc	2009–2013	Replacement-family fitment shown by stator suppliers
Honda	TRX420FPM Rancher EPS	420cc	2009–2013	Replacement-family fitment shown by stator suppliers

OEM Cross Reference:
31120-HP5-A51

Specifications

Specification	Details
Part Type	Magneto Stator
Configuration	18 Coil
Current Type	DC
Outer Diameter	107 mm
Inner Diameter	42 mm
Thickness	20 mm
Connector Type	Please match with original part before ordering
Material	Copper winding / Copper-clad steel wire / Aluminum plate
Condition	100% New Aftermarket

Key Features

18 Coil DC Design – Helps provide stable electrical output for the charging and ignition system
Direct OEM-Style Replacement – Designed around Honda stator family 31120-HP5-A51
Reliable Electrical Performance – Helps restore dependable charging-system operation
Durable Construction – Built for heat resistance, flame retardancy, and long service life
Straightforward Installation – Designed for direct replacement on correctly matched applications

Common Problems This Part Can Help Solve

This product may help address issues such as:

Battery not charging
Weak or no spark
Hard starting
Intermittent electrical failure
Unstable charging output
Poor ignition performance

Package Includes

1 × 18 Coil DC Magneto Stator

Fitment Note

Please confirm your OEM part number, connector style, stator dimensions, and vehicle model/year before ordering.

If you are unsure about compatibility, contact us with your model, year, OEM number, connector photos, and stator measurements before purchase.

Installation Note

Professional installation is recommended.

Before installation, inspect related components such as the battery, wiring harness, regulator/rectifier, flywheel, and charging system to avoid repeat failure caused by another faulty part.

Why Choose This Replacement

A failing stator can lead to charging issues, unstable voltage, weak ignition performance, and unreliable starting. Replacing it with a properly matched unit helps restore dependable electrical performance and keeps your Honda Rancher ready for work and trail use.

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Honda TRX420 Rancher FE FM TE TM FPE FPM Magneto Stator 2007–2013 | 31120-HP5-A51