The Best Four-Stroke Replacement Engines

Looking for the best Four-Stroke Replacement Engines?

Discover now our comparison of the best Four-Stroke Replacement Engines. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Four-Stroke Replacement Engines are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Four-Stroke Replacement Engines in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

Offabing 140CC Engine Motor Fit For Pit Dirt Bike SSR Apollo Coolster 125CC XR50 ATC70 ST90K1 CS90, 4-Stroke Engine Motor Replacement Kits

BASIC SPECIFICATIONS - Type: Single Cylinder, Horizontal, 4 Stroke, Displacement: 140cc, Engine Oil: 900ml 15W/40-SE, 4 Stroke, Oil Gear: 4 Speed Manual Clutch, 1N234
POWER - max. Power and corresponding speed: 8kw (7500±375), the maximum. Torque and corresponding speed: 9.5N.M (5000±250)
FITS (For Reference) - Fits HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50 /
PACKAGE INCLUDE - 1 x 140CC Engine, 1 x Kick Starter Lever, 1 x Shifter, 1 x Manifold Kit Package, 1 Carburetor, 1*CDI
Kind friends, we will add a small amount of oil to test this engine at the factory, so it is normal to receive a small amount of residual oil, thank you for your understanding and choice!

No. 2

maXpeedingrods 7HP 212cc Gas Engine, Electric Start 4 Stroke OHV Horizontal Shaft Gasoline Engine, Shaft 3/4" (19mm) Diameter, Shaft 3/16" Keyway for Go-Karts Log Splitters Lawn Mowers

【Specification】Shaft Diameter(inch): 3/4; Shaft Keyway(inch): 3/16; Shaft length(inch): 2.43; Shaft End: 5/16"-24 Drilled and Tapped; Shaft Orientation: Horizontal; Bore x Stroke(mm): 70x55; Displacement: 212cc; Starting method: Recoil/Electric(Battery not included); Horse Power(HP): 7; Fuel; Tank capacity(L): 3.6; Oil capacity(L): 0.6; EPA Certified: Yes
【Electric Start】Our gasoline engine is specially designed with electric start, just turn the key, you can start the engine easily and quickly. And also comes with a recoil start, giving you dual start options.
【Powerful Engine】Our gasoline engine is a 4-stroke 212cc OHV engine, which provides you with strong power and ensures that your work can be completed quickly and easily. And can be used in a variety of applications such as go-karts, log splitters, compressors, lawn mowers, water pumps, pressure washers and more.
【Low Fuel Consumption】The gasoline engine adopts overhead valve (OHV) design, effectively helps improve power output and fuel efficiency, and help you save a lot of money on fuel costs.
【Low Oil Automatic Shut--off】Low oil sensor shuts down engine when oil reaches a level that is too low for safe operation, improving the safety of engine use and extending the service life.

No. 3

ORAEVY 52.4mm Complete Cylinder Head Replacement for 4 Stroke 110cc Engine Chinese ATV Go Kart Dirt Bike Pit Bike Scooter Coolster TaoTao SSR

Perfect match：Fit for most Chinese made 4 stroke 110cc Engines,Compatible with TaoTao 110cc,SSR 110cc,Coolster 110cc ,Kazuma Falcon 110cc,Panda 100cc,Coyote 110cc,Redcat 110cc,Roketa 110cc,BMS 110cc ,Sunl 110cc
Product parameter：Bore: 52.4mm /about 2.06'',Intake valve:23mm/0.91",exhaust valve:20mm/0.79",Timing Drive Sprocket-28 teeth
Other parameters：Blot hole spacing(A):1.74" ; Blot hole spacing(B):2.00" ; Blot hole spacing(C):1.87" ; Diameter(D):2.06" ; Blot hole spacing(E):2.00" ; Blot hole spacing(F):2.00" ; Blot hole spacing(G):1.83" ; Blot hole spacing(H):1.83" ;
Not Replacement for:Will not replace 125cc Cylinder Head with 23mm and 28mm Intake and Exhaust valves
Package includes:1*Complete Cylinder Head，1* set of complete cylinder gaskets，1*Bakelite mat，1*Exhaust pipe gasket，2*Exhaust pipe screws，1*A7 spark plug，1*pair free installation gloves

SaleNo. 4

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

No. 5

110CC 4 Stroke Engine Motor, Auto Transmission Electric Start Single Cylinder Engine, Chain Driven, for 50cc 70cc 90cc 110cc ATV and Go Karts

Engine automatically 110cc fit for ATV Go Kart 50cc 70cc 90cc 110cc.
Compatible Models: Blade, Kinroad, Roketa, KPX, SUNL, Aimex, Alphasports, BMS, BMX, Cool Sports, Baja, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, KMD, Kymco, Lance, Linhai, NST, Redcat, Roketa, Tank, X-Treme, Yamati, Coolster, Terminator, Lynx, etc.
Features: 4-stroke single-cylinder engine automobile motor is continuously variable, automatic, no forward/neutral/reverse.
[ Note] - The engine assembly has an intake pipe and spark plugs. It is not equipped with carburetor, battery, CDI, voltage stabilizer and ignition coil.
[ Note 2 ] - It is forward only. If your engine starter is mounted on the bottom, please consult with us before purchasing as the mounting holes are different.

No. 6

VEVIVOOVY 7.5HP 212cc Gas Engine,4-Stroke Horizontal Shaft 0.787"(20mm) Diameter Gasoline Engine,Pull Start Petrol Engine Fit for Go Karts Mini Bike Log Splitters Compressor Water Pumps

【Basic Specifications】Shaft Diameter(inch): 0.787” (20mm); Shaft Keyway: 3/16(4.76mm); Shaft length(inch): 2.43; Shaft End: 5/16"-24 Drilled and Tapped; Shaft Orientation: Horizontal; Bore x Stroke(mm): 70x55; Displacement: 212cc; Compression: 8.5 : 1; Horse Power(HP): 7; Fuel Tank capacity(L): 3.6; Oil capacity(L): 0.6; EPA Certified: Yes.
【Powerful Force】The gasoline engine is a 4-stroke 212cc OHV engine; Lube oil capacity: 0.6L; Fuel tank capacity: 3.6L; Borexstroke: 70*56mm; Displacement: 210cc; Compression Ration: 8.5; Engine Type: Air Cooled, 4 Stroke Gasoline Engine, OHV, Single Cylinder; Horsepower: 7.5HP; Speed: 3600rpm; Fuel consumption rate: 395g/kw.h.
【Large Fuel Tank and Low Fuel Consumption】Gasoline engine 3.6L large fuel tank with overhead valve (OHV) design, effectively helps improve power output and fuel efficiency, and help you save a lot of money on fuel costs.
【Wide Application】 Go Karts, Mini Bike,Log Splitters, Compressor, Cement Mixer, Scarifier, Lawnmower, RotoTillers, Pressure Washers, Water/Trash Transfer Pump, Dust Collector, Flail Mower, Generator etc.
【Wide Application】 Go Karts, Mini Bike,Log Splitters, Compressor, Cement Mixer, Scarifier, Lawnmower, RotoTillers, Pressure Washers, Water/Trash Transfer Pump, Dust Collector, Flail Mower, Generator etc.

No. 7

JAYGOVAN 15HP Gas Engine Horizontal Shaft, 420CC 4 Stroke OHV Industrial Grade Replacement Gas Motor, Shaft 1" (25mm) Diameter Recoil/Pull Start Gas Powered Engine with Single Cylinder System (Red)

【Powerful】- The engine power is up to 9700W and the rated speed is up to 3600rpm, which can provide strong power for the machine running, and the camshaft is made of iron with high wear resistance. It can make the engine work stably
【Low Fuel Consumption】- The engine is equipped with a high-precision carburetor, which can reduce fuel consumption (≤374g/kw.h) and cost, and the machine will stop working automatically when the oil is too low. This prevents the engine from suddenly shutting down while working
【Long Lasting Operation】- The gas engine is equipped with a large capacity fuel tank (1.72 gallons) for long time operation. Equipped with forced air-cooling system and ventilated heat sinks to keep the engine cool, thus providing high reliability and durability
【Low Noise】- High-quality silencers effectively reduce noise and an air filter purifies the air. Its filtration performance helps reduce wear and prolong service life, providing you with a relatively quiet and comfortable working environment
【Ergonomic Design】- This engine has a starting handle and a general control area, which is ergonomic and easy to start and use, and the oil port adopts cap sealing design to effectively prevent oil leakage from the oil tank

No. 8

4-Stroke Petrol Engine Single Cylinder Gasoline Engine 31cc, Mini Engine for Brush Cutter Lawn Mower

Engine type: air-cooled, four-stroke, single cylinder gasoline
4 stroke Brush Cutter 139F; Pipe diameter: 35x26mm (1.4x1in)
Engine power: 0.8kw/6500r/min
Displacement: 31cc; Fuel tank capacity: 0.6L
Separately add fuel: engine oil is added to the oil tank, gasoline is added to the gasoline tank (Just add the oil to half of the oil tank).

No. 9

FireLeaves 6.5HP Gas Engine Horizontal Shaft, 160CC 4 Stroke OHV Industrial Grade Replacement Gas Motor Compatible for Honda GX160, Shaft 20mm Diameter

【Ideal choice】If you find manual labor very hard from time to time, then you definitely need this gasoline engine! With it, you can save a lot of energy. It also has a silencer, so you can have a quiet working environment.
【Strong Power】The engine has a power of up to 3kw and a high speed of up to 3600r/min, our engines produce a lot of power and help you get the job done quickly and well.
【Large Fuel Tank】The gas motor has a large fuel tank capacity of 6.5L/1.72gal allowing it to work for a long time. You don't need to fill the tank frequently, which is very convenient.
【Efficient Cooling System】The built-in air cooling system and ventilated heat sink are designed to keep the motor cool and provide high reliability and durability.
【Low Fuel Consumption】The OHV overhead valve effectively helps reduce carbon buildup and dramatically improves fuel savings. You can also save a lot of money on fuel costs.

SaleNo. 10

STP Premium Synthetic Blend 4 Cycle Small Engine Oil, SAE 10W-30, 32 fl oz, Motor Oil for Lawnmowers, Generators, Tractors, Snow Blowers, and More

SAE 10W-30 MOTOR OIL FOR SMALL ENGINES: One 32 fl oz bottle of STP Premium Synthetic Blend 4 Cycle Small Engine Oil SAE 10W-30, formulated for small engines in lawnmowers, generators, tractors, snow blowers, and other outdoor power equipment
ALL-WEATHER FORMULA: This 4 cycle engine oil is a synthetic blend with an all-weather formula that promotes easier starts all year and can be used in all seasons
FIGHTS THERMAL BREAKDOWN: Antioxidants fight thermal breakdown to enhance oil durability, helping the SAE 10W-30 oil handle high temperatures without losing its effectiveness
REDUCES ENGINE WEAR AND OIL CONSUMPTION: Anti-Wear Technology minimizes engine wear, while the viscosity index improver helps reduce oil consumption and provides consistent lubrication at a wide range of temperatures
PREVENTS BUILDUP: Detergents help keep small engine components clean and control carbon deposits, preventing buildup that can affect performance and start-up
PROTECTS AGAINST CORROSION: Corrosion inhibitor promotes equipment longevity during seasonal storage, helping your engine stay protected even when not in use
HOW TO USE: Use it as a lawnmower oil, generator oil, or for other small engines commonly used outdoors; simply check the oil and change as necessary (refer to owner’s manual)

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Last update on 2025-07-10 / Affiliate links / Images from Amazon Product Advertising API

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