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125CC 4 Stroke Engine Motor Kit, 7.64HP Single Cylinder Air Cooled Motor Engine ATV GO Karts Engine Semi-Auto Transmission with 3 Forward Gears and 1 Reverse for Go Kart Honda Pit Dirt Bike

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Returnable until Jan 31, 2026

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Availability: In Stock.
Fulfilled by CDMZZOO

Arrives Monday, Mar 30
Order within 11 hours and 20 minutes
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Features

  • Powerful PowerThis 125cc engine has a powerful 7.64 horsepower, a displacement of 125cc, and a maximum speed of 7500rpm, providing you with strong power to ensure that your driving experience is smooth and powerful.
  • Sturdy and DurableThis atv engine is made of high-quality aluminum and cast steel to ensure excellent performance and longer service life, and adapt to complex environments and conditions. Its closed design effectively prevents dust, water, oil, etc. From entering the interior of the machine, while minimizing the need for daily maintenance.
  • Efficient Cooling SystemThis motorcycle engine adopts an air cooling system to quickly reduce the engine temperature, effectively prevent overheating, and ensure a smooth and lasting driving experience.
  • Adjustable SpeedThis 125cc atv engine four-speed manual transmission provides high-precision shifting control, allowing you to easily adapt to various road conditions, allowing you to enjoy a more exciting driving experience under different road conditions. Its speed shaft can control the vehicle speed according to different usage scenarios.
  • Detailed DesignThe lubricating oil filter of this 125cc motor helps to filter solid stains in the lubricating oil, greatly reducing wear and extending the service life of the engine. Its anti-vibration mounting holes are used to install shock absorbers to reduce vibration during driving, thereby improving driving comfort. And the forged crankshaft is designed with high-quality metal to ensure high safety and stability during operation. Its different wires are in different colors, easy to distinguish and connect without confusion.

Description

DescriptionIf you are a driving enthusiast who loves freedom and pursues speed and passion, our 4-stroke ATV motor engine will be your ideal choice. Its excellent performance and stable power output make your driving more enjoyable and comfortable. Buying this 4-stroke ATV motor engine means choosing a high- quality, high-performance, and safe driving experience.SpecificationEngine Type: Single Cylinder, 4 Stroke, Horizontal, Two-stage TransmissionOther Features: 3 Forward Gears and 1 ReverseMaterial: Aluminium, Cast SteelEngine Cooling Type: Air CoolingIgnition System: CDI (Not Included)Start Mode: Kick- starter; ElectricClutch Type: Manual Wet Multi-DiscTransmission: 4-speed, Semi-AutoDisplacement: 125CCMinimum No-load Stable Speed: 1400 (1 ± 10%) R / minCompression Ratio: 8.7:1Bore Stroke: 5454mm/2.122.12inchMax Power: 5.8Kw/hMax Torque: 8.0N-mMax Rotating Speed: 7500rpmHorsepower: 7.64HPAir Inlet and Exhaust Valve Clearance: 0.05 ~ 0.07 mm (Cold State)Min Fuel Consumption: ≤367g/kW.hSpark Plug: A7TC Carburetor Type: PZ19 (Not Included)Min Stable Idle Speed: 1500r/min±150r/minPrimary Reduction Ratio: 3.722Transmission Ratio of Each Gear: First Gear: 3.272; Second Gear: 1.938; Third Gear: 1.350; Fourth Gear: 1.043Lubricant Capacity: 900ml/0.23 GallonsLubricant Type: SL10W/40 (Not Included)Crankshaft Diameter: 1.5cm/0.59inch Crankshaft Length: 0.4cm/0.15inch Gasoline Type: ≥ 92 Gross Weight: 19.45kg/42.87lbsNet Weight: 18.15kg/40.01lbsProduct Size: 453025cm/17.7111.819.84inchPackage Size: 513933.5cm/20.0715.3513.18inchPackage Included 1ATV Motor Engine1Gearshift Lever1Chain Cover1Intake Manifold2Intake GasketsAll Accessories for AssemblyNotes1.Professional installation is highly recommended.2.Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.

Manufacturer: ‎YUASDUU


Brand: ‎YUASDUU


Model: ‎125CC 4 Stroke Engine Motor Kit


Item model number: ‎125CC 4 Stroke Engine Motor Kit


Exterior: ‎No


Manufacturer Part Number: ‎125CC 4 Stroke Engine Motor Kit


Date First Available: August 6, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 30

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


  • Stable Air Cooling System!
I'm riding my modified ATV outdoors in the summer, and the air cooling system on this engine is incredibly reliable! I ran for two hours straight on mountain roads, and the engine was only slightly warm to the touch, with no signs of overheating or stalling at all. It's much more convenient, worry-free, and labor-saving than my previous liquid-cooled engine. Even in high temperatures, the engine maintains a stable rpm, with no throttling due to high temperatures. I no longer have to worry about range anxiety during long outdoor rides, and I feel incredibly safe! ... show more
Reviewed in the United States on October 27, 2025 by Cliente Amazon

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