GOOFIT
Starter Motor for Honda TRX350 Fourtrax (1986), TRX350G | OEM 31200-HA7-671
Starter Motor for Honda TRX350 Fourtrax (1986), TRX350G | OEM 31200-HA7-671
5.0 / 5.0
(2) 2 total reviews
Couldn't load pickup availability
GOOFIT Heavy-Duty Electric Starter – Honda TRX350 Fourtrax (1986) Series
Bring your legendary workhorse back to life. The GOOFIT 12V Heavy-Duty Starter Motor is a premium aftermarket replacement specifically engineered for the first-generation Honda TRX350 Fourtrax (1986) and the TRX350G. Known for their indestructible nature, these ATVs require a starter motor that can handle the high-torque resistance of a 350cc utility engine.
Built to meet or exceed OEM 31200-HA7-671 specifications, this motor uses high-grade internal copper windings and a reinforced armature to deliver consistent starting power. Whether you are using your Fourtrax for farm work or trail riding, this motor ensures a reliable start in the toughest conditions.
Product Compatibility
This motor is a direct bolt-on replacement for the following vintage Honda ATV models:
- Utility ATV: Honda TRX350 Fourtrax 4x4 (1986).
- Specialized Models: Honda TRX350G Fourtrax Foreman (1986).
- OEM Part Number Cross-Reference: 31200-HA7-305, 31200-HA7-315, and 31200-HA7-671.
Key Technical Specifications:
- Voltage: 12V DC.
- Rotation: CW (Clockwise).
- Drive Gear: 10-Tooth Spline.
- Build Quality: High-conductivity core with excellent corrosion and wear resistance.
Why Choose the GOOFIT TRX350 Replacement Starter?
- Vintage-Spec Precision: Specifically engineered for the unique 10-tooth spline requirement of the 1986 TRX350 engine, ensuring a perfect mesh with the starter reduction gear.
- High-Torque Performance: Designed to overcome the heavy compression of the 350cc engine, reducing the "sluggish crank" common in older utility quads and saving your battery from excessive drain.
- Rugged Utility Build: Features a sealed housing to protect internal components from the mud, snow, and water that utility ATVs encounter daily on the farm or trail.
- Reduced Failure Rate: Advanced thermal insulation and high-quality brushes prevent the internal overheating that often causes vintage starters to fail during repeated cold-starts.
Share

Fitment FAQ
Will this part fit my specific model and year?
This starter motor is intended for Utility ATV: Honda TRX350 Fourtrax 4x4 (1986).; Specialized Models: Honda TRX350G Fourtrax Foreman (1986).; OEM Part Number Cross-Reference: 31200-HA7-305, 31200-HA7-315, and 31200-HA7-671.. It is best matched to original part number(s) 31200-HA7-671, 31200-HA7-305, 31200-HA7-315. Key physical/spec details from the product data include Voltage: 12V DC., Rotation: CW (Clockwise)., Drive Gear: 10-Tooth Spline.. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 31200-HA7-671, 31200-HA7-305, 31200-HA7-315 before purchase. For this starter motor, also compare the OEM number, voltage, tooth count, rotation direction, mounting ears, bolt spacing, terminal type, and overall length. This is especially important for Honda TRX350/TRX350G models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this starter motor for machines outside the listed compatibility, or for units with different tooth counts, CW/CCW rotation, mounting ears, terminal locations, or voltage ratings. If your original part number does not cross-reference with 31200-HA7-671, 31200-HA7-305, 31200-HA7-315, treat the fitment as unconfirmed. Model years outside 1986 should be verified separately. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the OEM number, voltage, tooth count, rotation direction, mounting ears, bolt spacing, terminal type, and overall length. Confirm OEM/cross-reference number(s): 31200-HA7-671, 31200-HA7-305, 31200-HA7-315. Recheck listed specs such as Voltage: 12V DC., Rotation: CW (Clockwise)., Drive Gear: 10-Tooth Spline.. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
works well
thanks It works great 👍