OVERVIEW
The Firepower Starter Brush Holder Rebuild Kit restores proper electrical contact and smooth crank performance in aging Honda ATV starter motors. This complete rebuild kit replaces worn copper brushes, bearings, and insulating components to revive slow or unresponsive cranking. Engineered specifically for Mitsuba-style starters found on select Honda TRX350 and TRX400 ATVs, it delivers OEM-caliber internal alignment without the cost of a full unit swap.
ENGINEERING & PERFORMANCE
Precision-cast brush holders house fresh copper contacts that maintain consistent current flow during ignition events. Heavy-duty bearings and durable bushings reduce friction to ensure rapid, predictable pinion engagement every time you turn the key. Sealed O-rings and reinforced insulators protect critical contact points from moisture and heat buildup typical of under-hood ATV environments. The direct-fit architecture eliminates fabrication, allowing straightforward disassembly and reinstallation over the existing starter assembly.
KEY FEATURES
- Complete brush holder rebuild kit for Honda starter motors
- Copper brushes for strong, stable electrical contact
- High-grade bearings and bushings engineered for smooth rotation
- Replacement O-rings and insulating components included
- Direct-compatibility with Mitsubishi-style Honda starter housings
- Restores fast cranking and reliable starting recovery
- Cost-effective alternative to purchasing a complete new starter unit
- Includes all necessary hardware for internal starter refresh
TECHNICAL SPECIFICATIONS
- Brand: Firepower
- Part Name: Starter Brush Holder Rebuild Kit (414-52019)
- Component Type: Starter Motor Assembly / Internal Rebuild Components
- Compatible Materials: Copper brushes, steel bushings, rubber O-rings
- Supported Years: 1986–2008 (model-specific)
- Compatible Trims: Matches original Mitsuba-style starter architectures
FITMENT
- Honda TRX350 Rancher (2000–2006)
- Honda TRX350 Foreman (1986–1989)
- Honda TRX400EX Sportrax (1999–2008)
- Honda TRX400X (2012–2014)
- Honda TRX400FW Foreman 4x4 (1995–2003)
WHY RIDERS CHOOSE THIS
Riders rely on this rebuild kit to bypass the high expense and long lead times associated with replacing entire starter assemblies. The copper-to-brush-face mating surface guarantees immediate voltage transfer, which translates to instant spark delivery even after months of storage. Reinforced internal bearings eliminate the grinding and hesitation that often trigger false diagnostic trouble codes. Because the kit mirrors the exact factory tolerances of the original Mitsuba units, installation requires no modification and returns the ATV to its intended cranking speed on the first try.