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125CC Engine Motor, 4 Stroke Semi-Auto ATV Engine Motor Kit 125cc Dirt Bike Single Cylinder Motor CDI/Electrical Start with Reverse and 3 Forward for Go Kart Dirt Bike ATV Pit Bike Buggy

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Availability: In Stock.
Fulfilled by GSHIOIO

Arrives Mar 24 – Mar 26
Order within 20 hours and 10 minutes
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Size: 125CC 4-Stroke


Features

  • DurableMade of high-quality iron and aluminum by die-casting and painting process, it is impact-resistant, not easy to crack and has a long service life.
  • 5.5KW power outputFour-stroke single-cylinder engine provides 8.5 Nm torque and 7500 rpm high speed, with PZ19 carburetor, high efficiency and fuel saving, designed for off-road vehicles/ATVs with complicated terrain.
  • Dual startCDI electronic ignition + electric starter/kick starter dual mode, variable speed (forward/neutral/reverse), 0.24 gallon fuel tank, enhance the go-kart driving experience.
  • Damage-resistant structureHigh-pressure cast iron aluminum alloy body + anti-rust paint process to resist impact, pressure splash lubrication + air-cooling system to ensure long-lasting operation of off-road engine.
  • Wide compatibilityCompatible with 125cc dirt bikes, ATVs, go-karts and motorcycles

Brand: GSHIOIO


Model Name: 125CC ATV Engine


Speed: 7500 RPM


Horsepower: 5.5 Kilowatts


Product Dimensions: 11.81"W x 18.9"H


Brand: ‎GSHIOIO


Model Name: ‎125CC ATV Engine


Speed: ‎7500 RPM


Horsepower: ‎5.5 Kilowatts


Product Dimensions: ‎11.81"W x 18.9"H


Material: ‎Aluminum, Iron


Item Weight: ‎46.3 Pounds


Manufacturer: ‎GSHIOIO


UPC: ‎758483188486


Wattage: ‎5500 watts


Item Weight: ‎46.3 pounds


Item model number: ‎125CC ATV Engine


Exterior: ‎Die Casting, Painting


Manufacturer Part Number: ‎125CC ATV Engine


Date First Available: June 21, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Mar 24 – Mar 26

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.

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Top Amazon Reviews


  • Decent buy
Size: 125CC 4-Stroke
The media could not be loaded. Put it on a kids atv a few months ago and it's still goin strong. It was not packed well for shipping. The head bolts were loose, glad I checked before installing. Came in an oil soaked box and the crank case vent was broken off. I put my own in and everything has been fine sense ... show more
Reviewed in the United States on February 7, 2026 by RayJay

  • DO NOT BUY
Size: 125CC 4-Stroke
the package shipped in like 4 days which is really good for this type of thing. but that was the only good thing. it came without instructions which was fine for me but not for everybody. the electric start button never worked, but I could hot start it. and sometimes it wouldn't start. I put it in my little quad and finally got it to run and then started riding it for a short time, when I was done noticed a big whole in the coil cover on the motor so I sent pictures to amazon to return it and they said they would only give 60 bucks. but shipping it back costs over 80 bucks, so they said they would give me a full refund. the was 3 months ago and I keep asking them and they still haven't given me a refund ... show more
Reviewed in the United States on February 13, 2026 by Meredith

  • Perfect swap for my go-kart
Size: 125CC 4-Stroke
I replaced the old engine on my kid's go-kart with this 125CC and it runs like a dream. Installation was straightforward and the electrical start is so convenient. Having reverse is a game-changer. Plenty of power and seems well-built. Great value for the price.
Reviewed in the United States on March 8, 2026 by mark vidrine

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