The Best 400Cc Atv Engine of 2025 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 400Cc Atv Engine of 2025. Check our ranking below.

2,223 Reviews Scanned

Rank No. #1

X-PRO 4-Stroke Vertical ATVs Engine with Manual Transmission w/Reverse, Electric Start for 200cc 250cc ATVs

4-stroke Vertical ATVs Engine Motor with Manual Transmission w/Reverse, Electric Start for 200cc 250cc
Please check pictures and specifications for compatibility

Rank No. #2

LIAPDG 200CC/250CC ATV Engine,5-Speed 4 Stroke Motorcycles Engine14Hp Single Cylinder Air Cooling Engine Motor 7500Rpm Cdi Ignition System Crankshaft Diameter 2Cm/0.78Inch Size 12.4 x 12 x 16.92Inch

[Strong Power] This ATV motor engine boasts a robust 14HP horsepower, a displacement of 200cc/250cc, and a max rotating speed of 7500RPM, which provides you with strong power and ensures that your drive will be very smooth and powerful. Lubricating oil filter can help filter solid stains from lubricating oil, largely reducing wear
[Excellent Material] The engine is equipped with premium aluminum and cast steel, ensuring superior performance and adapting to complex environments and conditions. Clutch lever can transfer and cut off the power promptly, and prevent overloading of the transmission system, ensuring that the engine starts smoothly. Gearshift shaft can control the vehicle's speed to suit different usage scenarios
[Effective Cooling System] 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. Shockproof installation hole is used to install shock absorbers to reduce the vibration of the motorcycle during driving. Forged crankshaft adopts high-quality metal design to ensure high safety and stability during operation
[Adjustable Speed] Its 5-speed manual clutch 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. For different wires, they have different colors, thus easily distinguishing and connecting them without confusion. It is widely applied to ATV motorcycles, as long as the size matches
[Easy to Operate] The CDI ignition system (not included) leads to higher energy and ignition efficiency. The closed design effectively prevents dust, water, oil, etc. from entering the machine, while minimizing the need for daily maintenance as much as possible. Our ATV motor engine is pre-installed and you only need to spend a little time and effort to complete the remaining parts, enjoying a sense of achievement

SaleRank No. #3

250cc 4-Stroke Engine Motor for ATV Dirt Bike, 5-Speed Manual Transmission Engine CG250 Vertical Engine Motor - Single Cylinder, US Stock

【FEATURES】 100% brand new 250cc 4-Stroke Engine Motor, excellent performance, Single cylinder, 4-stroke with air-cooled, and electric/foot startup mode.
【MAIN PARAMETERS】 Engine Type：Single Cylinder, 4-Stroke, Vertical; Lubrication：Pressure/splash; Cooling System：Air Cooled; Fuel:Unleaded gasoline ; Displacement: 250cc.
【APPLICATIONS】 250cc 4-stroke Engine with Manual Transmission fits most Chinese made ATV, Upgrade your ATV engine to provide more powerful power.
【PACKAGE INCLUDED】 This engine assembly comes with Intake Pipe, Drive Sprocket, Sprocket cover & Spark Plug（Most of the accessories are already installed on the engine） but doesn't come with Carburetor, Battery, CDI, Voltage Regulator, Ignition Coil etc.
【Shipping & Service】 We packed the item as good as we can. If there are any problems, please tell our after-sales team, and we will provide the most professional and timely service.

Rank No. #4

CUBELLIN 200CC 250CC ATV Motor Engine 4 Stroke Motor Engine Manual Gear Shift 5-Speed ATV Engine 7500RPM Single Cylinder Air Cooling Engine for ATV Motorcycles with CDI System

200CC/250CC MOTOR ENGINE: This ATV motor engine boasts a robust 14HP, a displacement of 200cc/250cc, and a max rotating speed of 7500RPM, which provides you with strong power and ensures that your drive will be very smooth and powerful.
DURABLE 250CC ENGINE: The ATV motor engine is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan and adapting to complex environments and conditions.
5 ADJUSTABLE SPEED: The motor engine's 5-speed Cycle Gear,No reverse gear transmission provides you with high-precision gear shifting control, so it allows you to easily adapt to various changes. The motorcycle engine makes your driving experience more exciting under different road conditions.
CDI IGNITION SYSTEM: The CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the motor engine quickly and safely.
AIR COOLING SYSTEM: The 4 stroke ATV motor engine adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.

Rank No. #5

LIYUANJUN 125CC Engine Motor, 4-Stroke Semi Auto Engine for Go Kart ATV Quad Bike Buggy CDI/Air Cooling System Single-Cylinder with Reverse and 3 Forward Electrical Start

【About Wirings】Five wires (plug) is for gear indicator; yellow wire is for storage battery; pink (or yellow) wire is for storage battery; black & red wire is for signal trigger;green wire is for grounding; blue & white is for trigger coil.
【Compatible with】 This 125cc engine motor is suitable for pit bike, dirt bike, buggy, pocket rocket, go-karts, atvs, track bikes, quad and so on. It fits for Atomik, for Pitpro, for TDR, for Xmoto, for Trooper, for Motox, for Trojan, for Blitz, for Raider, for Zongshen, for Chongqing, for Loncin, for Ducar and more.(For the reference)
【Parameters 1】Engine Size: 125cc; Gear System: 3 Forward; Neutral; Reverse; Type: Horizontal, Single-Cylinder, 4-Stroke, Air-Cooled; Start Method: Electrical Start; Bore X Stroke: 52.4 × 55.5 Mm, 119.7 Ml; Top Engine Mount: 92mm; Bottom Engine Mount: 82mm
【Parameters 2】Idle speed: 1500 r/min±100r/min; Front sprocket: 428 - 14T; Ignition: CDI; Air Filter: 35mm; Carburetor: PZ19; Lubrication: Pressure/splash; Oil capacity: 900ml/0.23gal; Maximum torque/ rpm: 8.5 N.m/5000r/min±250 r/min
【Warm Note】Please note that the machine originally has oil, but the machine still needs add oil before it can start. Gasoline and engine oil volume mixing ratio, running-in period 25:1, late running-in period 30:1

Rank No. #6

HZOPUTLH 200CC/250CC 4 Stroke Engine, 14HP ATV Motor Engine(Cycle Mode) Single Cylinder Air Cooling with 5-Speed Manual Transmission, 7500RPM Kick-Starter Electric Dirt Bike Engine for ATV Motorcycles

STRONG POWER: This ATV motor engine boasts a robust 14HP horsepower, a displacement of 200cc/250cc, and a max rotating speed of 7500RPM, which provides you with strong power and ensures that your drive will be very smooth and powerful.
DURABLE AND STURDY: This dirt bike engine is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan and adapting to complex environments and conditions.
EFFECTIVE COOLING SYSTEM: By adopting an air cooling system, the temperature of this motorcycle engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.
ADJUSTABLE SPEED: Its 5-speed automatic clutch transmission provides you with high-precision gear shifting control, so the cycle gear selector design enables this 4 stroke ATV engine allows you to easily adapt to various changes. This motorcycle engine makes your driving experience more exciting under different road conditions.
EASY TO OPERATE: The CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the motor engine quickly and safely.

SaleRank No. #7

Knwigoe 125cc 4 Stroke Engine Motor Complete Kit Electric Start ATV Motor Semi-Auto Transmission Dirt Bike Engine with CDI Ignition Single Cylinder for Go Kart Honda Pit Dirt Bike Motorcycle

Powerful Engine:The horsepower of 125cc dirt bike engine up to 7.64HP/7500±500Rpm (5.7KW/7500±500Rpm) and maximum torque up to 8.0N.m/5500±500Rpm. this is a powerful 125cc engine with high output power.
Electric Start and Semi-Automatic Transmission: The 125cc engine with reverse equipped with an electric start for easy ignition and a semi-automatic transmission for a smooth ride, making it user-friendly for both beginners and experienced rider
Easy Installation with Complete Kit :The 125cc engine eletric start for go-kart comes with a complete kit for hassle-free installation, including all necessary components, making it easy to get your vehicle up and running quickly.
Durable and Reliable CDI Ignition System: 125cc pit bike engine features a CDI ignition system(Not include) designed for optimal performance, ensuring quick starts and reliable engine operation under various conditions.
Ideal for Go-Karts, ATVs, and Dirt Bikes :Versatile and adaptable, this 125cc motocycle engine is perfect for a variety of vehicles, including go-karts, dirt bikes, and ATVs, providing the power needed for off-road adventures

Rank No. #8

CUBELLIN 200CC 250CC ATV Engine 4 Stroke Motor Manual Gear Shift 5-Speed ATV Engine Single Cylinder Air Cooling with CDI System 7500RPM Engine Motor for Motorcycles

200CC/250CC MOTOR ENGINE: This ATV motor engine boasts a robust 14HP horsepower, a displacement of 200cc/250cc, and a max rotating speed of 7500RPM, which provides you with strong power and ensures that your drive will be very smooth and powerful.
DURABLE AND STURDY: The dirt bike engine is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan and adapting to complex environments and conditions.
AIR COOLING SYSTEM: The 4 stroke ATV motor engine adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.
5 ADJUSTABLE SPEED: The 250cc motor engine's 5-speed Cycle Gear,No reverse gear transmission provides you with high-precision gear shifting control, so it allows you to easily adapt to various changes. The ATV motor engine makes your driving experience more exciting under different road conditions.
CDI IGNITION SYSTEM: The CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the 250cc motor engine quickly and safely.

SaleRank No. #9

125CC 4-Stroke Semi Auto Engine Motor, ATV Quad Engine Motor Complete Kit, 4 Speed Electric Starter Motorcycle Engine, W/Reverse Electric Starter, Single Cylinder Air-Cooling(Black)

Strong Power: This ATV motor engine 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
Durable and Sturdy: The engine is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan and adapting to complex environments and conditions
Effective Cooling System: 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 Speed: Its 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
Great Stability: The crankshaft connecting rod adopts large diameter bearings, which improves the reliability of the bearings. This design makes the whole machine run more smoothly So you can start the motor engine quickly and safely

Rank No. #10

Borutools ATV 250cc Engine Motor Air-Cooled Vertical Engine 4-Stroke for ATV Dirt Bike, 5-Speed Manual Transmission Engine CG250 Vertical Engine Motor - Single Cylinder

【Specification】Engine:200cc/250cc, single cylinder,4-stroke, vertical, 5-speed (no reverse gear), maximum horsepower: 14.5KW/8500Rpm, material: aluminum alloy;Ignition method: CDI;Clutch: manual wet multi plate type;Minimum fuel consumption rate: ≤ 354 kW. h
【5-speed Adjustable Speed System】Equipped with the motor engine's precision 5-speed cyclic gearbox, the non-reverse gear design gives you delicate and subtle shift control, which makes the motorcycle's driving experience more passionate no matter how the road conditions change
【Air Cooling System】The 4 stroke ATV motor engine adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving
【CDI Ignition System】The CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the motor engine quickly and safely
【Includes】: This complete engine kit assembly comes with Intake Pipe, Drive Sprocket, Sprocket cover & Spark Plug（Most of the accessories are already installed on the engine）.Please note that if you already have a starter installed on the bottom of your engine (due to different mounting holes), this product is not applicable

Last update on 2026-01-07 / Affiliate links / Images from Amazon Product Advertising API

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FAQ:

Q: Where can I buy Chinese 400cc engine parts online?

A: Chinese 400CC engine parts for ATV, four wheeler and quad- Motopartsmax.com, your best online motobike parts sales center. There are no products to list in this category.

Q: What are the ATV/UTV engines made of?

A: The engines are massively supplied to domestic and foreign manufacturers for ATV/UTV assembly. The engines are made of power, CVT and gearbox. We look forward to establishing partnership with any interested bike manufacturer.

Q: Where to buy ATV engine in China?

A: Gaokin Industry, one of the most professional manufacturers of various high-tech equipment in China, now has atv engine for sale. We have gathered hundreds of professional and experienced staff working in our factory assisting by the most advanced equipment.

Q: What kind of engine does gaokin make for ATV?

A: ATV Engine Gaokin is specialized in producing ATV/UTV/snowmobile engines, from one-cylinder 4-stroke EFI 300/400/500CC engine to V-twin 4-Stroke EFI 850/1000CC engines. The engines are massively supplied to domestic and foreign manufacturers for ATV/UTV assembly. The engines are made of power, CVT and gearbox.