NICHE Starter Motor Assembly for Honda ATVs 31200-HP5-601 — 9-Tooth Pinion, Carbon Brushes

The NICHE Starter Motor Assembly is a direct-fit replacement for Honda ATVs and UTVs using OEM part 31200-HP5-601, engineered to match OEM performance and mounting dimensions.

Designed for riders and mechanics who need a reliable replacement starter without lengthy downtime, this assembly fits a wide range of Honda Rancher, Foreman, Rubicon and Pioneer models. Built to match original specifications, the unit uses carbon brushes and a nine-tooth pinion to engage with the engine ring gear correctly, while delivering consistent rotational direction and torque characteristics. Whether you’re restoring an older ATV or replacing a failed starter on a work vehicle, this NICHE assembly offers a practical OEM-compatible option.

Which Honda models is this starter assembly compatible with?

This starter fits many Honda 420 and 500 class ATVs and selected Pioneer models across several year ranges. Check your OEM part number or model/year to ensure compatibility before ordering.

• Rancher 420: TRX420FE, TRX420FM, TRX420FA, TRX420TE, TRX420TM (2007–2014 variations)
• Rancher 420 FPA/FPE/FPM (2009–2014 variants)
• Foreman 500: TRX500FE/TRX500FM (2012–2019), TRX500FPE/FPM (2012–2013)
• Foreman Rubicon 500 and Pioneer 500 SXS compatibility noted for model years listed

How does this assembly match Honda OEM specifications?

NICHE designed the unit to meet or exceed key OEM measurements and functional specs so it installs and performs like the original part. Critical features such as brush type, tooth count and rotational direction are preserved.

• OEM cross-reference: 31200-HP5-601 and 31200-HR0-F01
• Brush material: carbon for consistent contact and longevity
• Pinion: 9 teeth with counterclockwise rotation for correct engagement
• Rated torque ~1.9 Nm and cycle rating up to 10,000 operations

What performance and durability attributes should I expect?

The starter is engineered for dependable starting and built to withstand frequent use typical of utility and recreation applications. Its components and ratings aim to offer long service life when installed and used according to vehicle guidelines.

• Cycle rating: designed for repeated starts (cycle rating ~10,000)
• Torque: nominal 1.9 Nm for consistent cranking
• Durable carbon brushes and robust pinion gearing
• Manufactured to align with OEM mounting points for proper load distribution

How easy is installation and what should I check before fitting?

Installation is straightforward for anyone comfortable with basic ATV electrical work: remove the old starter, transfer any necessary brackets or heat shields, and secure the NICHE unit using the OEM fasteners. Verify electrical connections and ring gear condition before reassembly.

• Confirm your vehicle’s OEM part number (31200-HP5-601/31200-HR0-F01)
• Inspect ring gear teeth for wear before engagement
• Reconnect battery and test starter engagement before final reassembly
• Torque mounting bolts to manufacturer specifications

Who this is for: This NICHE Starter Motor Assembly is intended for owners, fleet managers, mechanics and restoration enthusiasts who need a cost-effective, OEM-compatible starter for Honda Rancher, Foreman, Rubicon and selected Pioneer models. It’s well suited for seasonal maintenance, quick roadside replacements, and workshops looking to stock a reliable aftermarket alternative that fits like the original.