125cc 4 Stroke ATV Engine, Semi Auto Motorcycle Engine, Go Kart Replacement Engine, Manual Wet Multi-Disc Quad Air Cooled Bike Engine for ATVs, Dirt Bikes, Go-Karts, Tricycles

DetailsLubricating Oil Filter: It can help filter solid stains from lubricating oil, largely reducing wear and prolonging the engine service life.Gearshift Shaft: It can control the vehicle's speed to suit different usage scenarios.Shockproof Installation Hole: It is used to install shock absorbers to reduce vibration during driving, thereby improving its driving comfort.Forged Crankshaft: It adopts a high-quality metal design to ensure high safety and stability during operation. Clear Wires: The different wires have different colors, thus easily distinguishing and connecting them without confusion.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: 54*54mm/2.12*2.12inchMax 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: 45*30*25cm/17.71*11.81*9.84inchPackage Size: 51*39*33.5cm/20.07*15.35*13.18inchPackage Included 1*ATV Motor Engine1*Gearshift Lever1*Chain Cover1*Intake Manifold2*Intake GasketsAll Accessories for Assembly

Powerful Performance – 125cc engine with 7.64HP and 7500RPM provides strong power for smooth, stable, and exciting ATV driving on various terrains.

Durable & Sturdy Build – Made of premium aluminum and cast steel, this engine ensures long-lasting durability and reliable performance in complex environments.

Efficient Cooling System – Air cooling quickly reduces engine temperature, prevents overheating, and ensures smooth, long-term operation.

4-Speed Manual & Easy Start – Features 4-speed transmission for precise gear control. CDI ignition system (not included) allows quick, safe, and efficient starting.

Easy Installation & Protection – Pre-installed engine with closed design for dust and water resistance. Shipped with custom foam packaging to prevent damage in transit.