Search  for anything...

125CC 4-Stroke Semi Auto Engine Motor, ATV Engine Single Cylinder Engine Dirt Bike Engine Pit Bike Motor w/3 Forward Gears & 1 Reverse for Motorcycles ATVs Go-karts & Tricycles

  • Based on 0 reviews
Condition: New
Checking for the best price...
$319.99 Why this price?
Save $219.00 was $538.99

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by DSHUENVRL

Arrives Mar 16 – Mar 17
Order within 5 hours and 37 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • Durable & Sturdy4 stroke atv engine motor is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan.
  • Strong Power4 stroke atv engine motor replacement kit boasts a robust 7.64HP horsepower, a displacement of 125cc, and a max rotating speed of 7500RPM, which provides you with strong power and ensures that your drive will be very smooth and powerful.
  • Effective Cooling SystemSpeed electric starter motorcycle engine by adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.
  • Adjustable SpeedMotorcycle engine motor 4-speed manual transmission provides you with high-precision gear shifting control, so it allows you to easily adapt to various changes. It makes your driving experience more exciting under different road conditions.
  • ApplicationEngine stroke motor kit can be widely used in motorcycles, ATVs, go-karts, tricycles, etc, as long as the crankshaft matches.

Manufacturer: ‎DSHUENVRL


Brand: ‎Marsyyds


Model: ‎Semi Auto Engine Motor, ATV Engine Single Cylinder Engine


Package Dimensions: ‎20.07 x 15.35 x 13.18 inches


Item model number: ‎AKBOFGQ-125


Exterior: ‎Brushed


Manufacturer Part Number: ‎AEQA-981


Date First Available: September 6, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Mar 16 – Mar 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Exactly as Described - Works Flawlessly
I replaced a blown engine on my Tao Tao ATV with this unit. It was a direct bolt-on replacement. Everything matched up: the mounting points, the sprocket, the wiring harness connectors. It came with a CDI, coil, and carb, so it was a complete kit. Fired up on the second kick. I've put about 20 hours on it so far with zero issues. The 3-forward gears are perfect, and the reverse works exactly as it should. For the price, this is an incredible value compared to buying a OEM engine from the ATV manufacturer. ... show more
Reviewed in the United States on September 19, 2025 by David

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...