Starter Motor for Honda FourTrax 300 TRX300 TRX250 - Reliable Cranking

In this review of the Starter Motor for Honda FourTrax 300 TRX300 and TRX250, the bottom line is straightforward: this replacement starter is aimed at owners who need a direct-fit, economical solution that restores reliable cranking to late 80s and 90s Honda ATVs. It is notable for its high quality internal motor and reduction gears that deliver steady cranking speeds while drawing less current from the battery, so riders who want a straightforward swap for TRX300 or TRX250 engines will appreciate the fit and function.

Key Features

• Direct fit for classic Hondas: Designed to match TRX300 and TRX250 applications from the late 1980s through 2000, so installation aligns with factory mounting points and shaft interface.
• 12V electrical design: The 12V specification makes it compatible with standard ATV electrical systems and helps ensure consistent starting performance.
• Reduction gear drive: Internal reduction gears deliver steady cranking speeds and improved torque while drawing less current from the battery, easing strain on older charging systems.
• 10-tooth, 10-spline shaft: The gear and shaft configuration matches the original starter engagement geometry for a correct mechanical fit.
• Permanent magnet direct drive (PMDD): Starter type gives compact, efficient operation suitable for lightweight ATV starter packages.
• Multiple part numbers covered: Replaces several factory part numbers, simplifying sourcing for owners of TRX300, TRX300FW and TRX250 models.

Who It's For

This starter is best for owners of Honda FourTrax 300 TRX300/TRX300FW (1988-2000) and TRX250/ATC250SX/ATC250ES 246cc 1987 models who need a cost-effective replacement that matches the original starter geometry and electrical spec. Mechanics restoring or maintaining older Hondas will find the matching teeth count and spline helpful for a straightforward swap.

It is less suited for riders who demand an OEM lifetime part or who cannot accept potential variability in longevity; several users report varying service life. If longevity beyond typical replacement cycles is an absolute requirement, consider sourcing a factory-new or higher-end remanufactured unit from specialized suppliers.

Pros & Cons

Pros

• Good mechanical fit for TRX300 and TRX250 applications, reducing installation headaches for experienced installers.
• Efficient 12V PMDD design with reduction gears gives steady cranking and reduces battery draw.
• Generally positive feedback on build quality and value for money from customers who tested it.
• Covers multiple factory part numbers which simplifies compatibility checks.

Cons

• Installation experiences are mixed; some users find the swap fiddly depending on the bike and access.
• Several customers report the unit does not last as long as some OEM alternatives, so longevity can vary.

Specifications

Voltage	12V
Rotation	CCW
Teeth	10
Shaft	10-spline shaft
Starter type	PMDD (permanent magnet direct drive)
Compatible models	TRX300, TRX300FW (1988-2000), TRX250/ATC250 (1987)
Replaces part numbers	31200-HA0-773, 31200-HA0-774, 31200-HC4-003, 31200-HC4-013, 31200-HC4-023

Our Verdict

The Starter Motor for Honda FourTrax 300 and TRX250 is a pragmatic replacement option for owners who need correct fit and dependable starting at a modest price. It offers efficient 12V PMDD operation and a matched mechanical interface, making it good value for routine repairs and restorations, though those seeking maximum longevity from an OEM-level unit should weigh that trade-off.

Frequently Asked Questions

Will this starter fit my TRX300 from the 1990s?
Yes, it is specified for TRX300 and TRX300FW models from 1988 through 2000 and is built to match the original starter interface.

What electrical spec do I need to match?
The unit is a 12V starter designed to work with the standard ATV 12V electrical system and charging components.

Are replacement gears or parts available if it fails?
Replacement internal parts are not typically sold separately for this unit; if it fails the common approach is to replace the entire starter with a matching unit or seek a remanufactured OEM part.