Skip to product information
1 of 3

GOOFIT

Starter Motor 12-Tooth for 50cc–125cc Horizontal Engines, Pit Bike, ATV, TaoTao

Starter Motor 12-Tooth for 50cc–125cc Horizontal Engines, Pit Bike, ATV, TaoTao

14 total reviews

Regular price $34.99
Regular price Sale price $34.99
Sale Sold out
Shipping calculated at checkout.
Quantity

GOOFIT 12-Tooth High-Torque Starter – Horizontal "Under-Engine" Series

The reliable power source for your off-road adventures. The GOOFIT 12-Tooth Starter Motor is the industry-standard replacement for small-displacement 50cc, 70cc, 90cc, 110cc, and 125cc horizontal engines. Designed specifically for the "under-engine" mounting position, this motor provides the high-torque cranking power needed to fire up air-cooled 4-stroke engines instantly.

Built to withstand the rigors of the trail, this starter features a water and dust-resistant housing, ensuring stable operation even when riding through mud, sand, or heavy rain. It is the perfect balance of performance and economy, offering a high-quality alternative to expensive OEM parts.

Product Compatibility

  • Engine Type: 4-Stroke Horizontal Engines (under-engine mount position).
  • Displacement: 50cc, 70cc, 90cc, 110cc, and 125cc.
  • Vehicle Types: Pit Bikes, Dirt Bikes, Kids' ATVs, Quads, and 4-Wheelers.
  • Brand Fitment: Direct fit for TaoTao, Sunl, Roketa, Coolster, Kazuma, SSR, and other Chinese "Honda-clone" engines.
  • Important Note: This motor is designed for horizontal engines only; it will NOT fit GY6 scooters or vertical engines.

Key Technical Specifications:

  • Mounting Pitch-Row: 24.98mm (0.98").
  • Drive Gear: 12-Tooth Spline.
  • Mounting Position: Bottom/Under Engine.
  • Environmental Protection: Sealed against water and dust intrusion.

Why Choose the GOOFIT Horizontal Starter?

  • Rugged Off-Road Design: Constructed from high-strength alloys, this motor is specifically engineered for harsh environments. The sealed design prevents trail debris from entering the armature, significantly reducing the risk of failure.
  • Economic Performance: We provide professional-grade starting reliability at an affordable price, making it easy to maintain a fleet of youth ATVs without breaking the bank.
  • Consistent Torque Delivery: The internal windings are optimized for high-amperage draw, ensuring a strong, consistent crank even on cold mornings or after a long day of riding.
  • Precision Fitment: With a standardized 24.98mm mounting pitch and a precision-cut 12-tooth gear, this motor offers a "plug-and-play" installation that matches factory specs perfectly.

Technical Note: Before ordering, please verify that your starter mounts underneath the engine. Some 125cc engines use a top-mount starter, which is not compatible with this model. Ensure your mounting bolt spacing is approximately 25mm to guarantee a perfect fit.

View full details

Fitment FAQ

Will this part fit my specific model and year?

This starter motor is intended for Engine Type: 4-Stroke Horizontal Engines (under-engine mount position).; Displacement: 50cc, 70cc, 90cc, 110cc, and 125cc.; Vehicle Types: Pit Bikes, Dirt Bikes, Kids' ATVs, Quads, and 4-Wheelers.; Brand Fitment: Direct fit for TaoTao, Sunl, Roketa, Coolster, Kazuma, SSR, and other Chinese "Honda-clone" engines.. Key physical/spec details from the product data include GOOFIT 12-Tooth High-Torque Starter – Horizontal "Under-Engine" Series, Drive Gear: 12-Tooth Spline., 50cc. Use the compatibility table and product photos together before ordering.

Do I need to match the OEM part number?

Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. 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/Roketa/TaoTao 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. 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. Recheck listed specs such as GOOFIT 12-Tooth High-Torque Starter – Horizontal "Under-Engine" Series, Drive Gear: 12-Tooth Spline., 50cc. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.