Best 20 HP Horizontal Shaft Gas Engine Electric Start in 2025
Updated on July 2025
#1
Recommended
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- 420cc 4-stroke gas engine with maximum torque of 18.45 ft.lbs at 2500 RPM and 15 HP.
- Shaft dimensions: 1 in diameter, 3.48 in length, compatible with 3/8 in.-24 UNF spark plugs and standard 87+ unleaded gasoline.
- Features a built-in air-cooling and splash lubrication system for safe, extended use, and includes a low oil shutoff function.
- Compatible replacement for various brands, including Honda GX340 and GX390, and Briggs & Stratton.
- EPA compliant, each engine is oil tested before packaging, resulting in some initial oil exposure.
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- 420cc 4-stroke gas engine with maximum torque of 18.45 ft.lbs at 2500 RPM and 15 HP.
- Shaft dimensions: 1 in diameter, 3.48 in length, compatible with 3/8 in.-24 UNF spark plugs and standard 87+ unleaded gasoline.
- Features a built-in air-cooling and splash lubrication system for safe, extended use, and includes a low oil shutoff function.
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#2
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- Equipped with an oil alarm that automatically shuts off the machine if oil levels are insufficient, protecting the machine and extending its lifespan.
- Utilizes an overhead valve design for reduced carbon buildup and improved fuel efficiency, coupled with a silencer for lower noise levels, enhancing the working environment.
- Features a powerful 15HP gasoline engine with a 420cc displacement and a 3600RPM speed, along with a 1.7-gallon fuel tank for extended operation without frequent refueling.
- Constructed with a metal cam, forged crankshaft, and cast iron cylinder liner for durability, and includes a forced air cooling system for optimal performance.
- Suitable for various applications such as go-karts, compressors, trenchers, generators, high-pressure washers, and cement mixers, as long as the crankshaft is compatible.
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- Equipped with an oil alarm that automatically shuts off the machine if oil levels are insufficient, protecting the machine and extending its lifespan.
- Utilizes an overhead valve design for reduced carbon buildup and improved fuel efficiency, coupled with a silencer for lower noise levels, enhancing the working environment.
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#3
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- Shaft Diameter: 3/4 inch; Shaft Keyway: 3/16 inch; Shaft Length: 2.43 inches; Shaft End: 5/16"-24 Drilled and Tapped; Orientation: Horizontal; Bore x Stroke: 70x55 mm; Displacement: 212cc; Starting Method: Recoil/Electric (Battery not included); Horse Power: 7; Fuel Tank Capacity: 3.6 L; Oil Capacity: 0.6 L; EPA Certified: Yes
- Electric start system allows for quick engine ignition with a key, includes backup recoil start option.
- 4-stroke 212cc OHV engine delivers robust power for various applications including go-karts, log splitters, compressors, and more.
- Overhead valve (OHV) design enhances power output and fuel efficiency, leading to cost savings on fuel.
- Low oil sensor automatically shuts down the engine for safety and extended engine life.
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- Shaft Diameter: 3/4 inch; Shaft Keyway: 3/16 inch; Shaft Length: 2.43 inches; Shaft End: 5/16"-24 Drilled and Tapped; Orientation: Horizontal; Bore x Stroke: 70x55 mm; Displacement: 212cc; Starting Method: Recoil/Electric (Battery not included); Horse Power: 7; Fuel Tank Capacity: 3.6 L; Oil Capacity: 0.6 L; EPA Certified: Yes
- Electric start system allows for quick engine ignition with a key, includes backup recoil start option.
- 4-stroke 212cc OHV engine delivers robust power for various applications including go-karts, log splitters, compressors, and more.
- Overhead valve (OHV) design enhances power output and fuel efficiency, leading to cost savings on fuel.
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#4
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- Shaft diameter: 1 inch; Shaft keyway: 1/4 inch; Shaft length: 3.48 inches; Shaft end: 3/8" Size 24 UNF - Drilled and Tapped; Horizontal orientation; Bore x stroke: 90x66 mm; Displacement: 420cc; Compression ratio: 8.0:1; Recommended oil: SAE 10W-30; Fuel tank capacity: 6 L; Oil capacity: 1.1 L
- Equipped with electric start for easy ignition; also features a recoil start for added convenience.
- 4-stroke 420cc OHV engine provides reliable power for various applications including go-karts, log splitters, compressors, lawn mowers, water pumps, and pressure washers.
- Overhead valve (OHV) design enhances power output and fuel efficiency, resulting in cost savings on fuel.
- Low oil sensor automatically shuts down the engine when oil levels are too low, enhancing safety and extending engine life.
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- Shaft diameter: 1 inch; Shaft keyway: 1/4 inch; Shaft length: 3.48 inches; Shaft end: 3/8" Size 24 UNF - Drilled and Tapped; Horizontal orientation; Bore x stroke: 90x66 mm; Displacement: 420cc; Compression ratio: 8.0:1; Recommended oil: SAE 10W-30; Fuel tank capacity: 6 L; Oil capacity: 1.1 L
- Equipped with electric start for easy ignition; also features a recoil start for added convenience.
- 4-stroke 420cc OHV engine provides reliable power for various applications including go-karts, log splitters, compressors, lawn mowers, water pumps, and pressure washers.
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#5
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- Large capacity fuel tank (1.72 gallons) allows for extended operation without frequent refilling.
- High-precision carburetor reduces fuel consumption to ≤374g/kw.h, leading to lower operating costs.
- Built-in forced air cooling mechanism enhances motor reliability and prolongs service life.
- Heat dissipation holes assist in temperature regulation, minimizing safety risks.
- Low oil alarm feature prevents engine shutdown due to low oil levels.
- Smooth surface design enables easy cleaning with a soft cloth.
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- Large capacity fuel tank (1.72 gallons) allows for extended operation without frequent refilling.
- High-precision carburetor reduces fuel consumption to ≤374g/kw.h, leading to lower operating costs.
- Built-in forced air cooling mechanism enhances motor reliability and prolongs service life.
- Heat dissipation holes assist in temperature regulation, minimizing safety risks.
- Low oil alarm feature prevents engine shutdown due to low oil levels.
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#6
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- 208cc 4-stroke OHV engine
- 1-gallon fuel tank
- Compatible with 87 octane gasoline
- Electric start with key switch
- Shaft: 3/4" diameter, 2-3/8" length
- EPA and CARB approved
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- 208cc 4-stroke OHV engine
- 1-gallon fuel tank
- Compatible with 87 octane gasoline
- Electric start with key switch
- Shaft: 3/4" diameter, 2-3/8" length
- EPA and CARB approved
#7
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- Electric starter for easy engine ignition
- Shaft dimensions: 1" diameter, 2-3/4" length, 1/4 keyway, 3/8" size 24 UNF
- Powered by a 420cc 4-stroke OHV engine with 16 horsepower
- Fuel tank capacity: 1.55 gallons
- Compatible with most 87 octane gasoline
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- Electric starter for easy engine ignition
- Shaft dimensions: 1" diameter, 2-3/4" length, 1/4 keyway, 3/8" size 24 UNF
- Powered by a 420cc 4-stroke OHV engine with 16 horsepower
- Fuel tank capacity: 1.55 gallons
- Compatible with most 87 octane gasoline
#8
6% Off
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- 15HP 4-stroke gas engine delivers a maximum output of 9.7Kw and a rated speed of 3600r/min for efficient performance.
- Engine specifications include air-cooled, single-cylinder design with a fuel tank capacity of 6.5L and a net weight of 30.5kg.
- Features a forced air cooling system and ventilated heat sink for enhanced reliability and durability during operation.
- Overhead valve (OHV) design ensures low fuel consumption, optimal operating temperature, and improved performance with high-quality materials for longevity.
- Equipped with an oil alarm that automatically shuts down the engine if oil levels are insufficient, ensuring protection and increased lifespan.
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- 15HP 4-stroke gas engine delivers a maximum output of 9.7Kw and a rated speed of 3600r/min for efficient performance.
- Engine specifications include air-cooled, single-cylinder design with a fuel tank capacity of 6.5L and a net weight of 30.5kg.
- Features a forced air cooling system and ventilated heat sink for enhanced reliability and durability during operation.
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#9
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- 【Fuel Efficiency】 - The overhead valve design of the go kart motor helps reduce carbon buildup, significantly improving fuel efficiency and saving fuel.
- 【Power Motor】 - The 212cc engine delivers 7.5 horsepower, with a displacement of 210cc and a rotational speed of 3600 RPM, providing robust power.
- 【Low Noise】 - This motorcycle engine features a noise-reducing muffler, supports manual or electric start, and maintains stable operation during each run
- 【Cooling System】 - The gas engine is equipped with a forced air cooling system and ventilation fins to keep the engine cool
- 【High Safety】 - If insufficient engine oil is added before startup, the machine will automatically shut down to protect the machine and reduce the risk of damage
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- 【Fuel Efficiency】 - The overhead valve design of the go kart motor helps reduce carbon buildup, significantly improving fuel efficiency and saving fuel.
- 【Power Motor】 - The 212cc engine delivers 7.5 horsepower, with a displacement of 210cc and a rotational speed of 3600 RPM, providing robust power.
- 【Low Noise】 - This motorcycle engine features a noise-reducing muffler, supports manual or electric start, and maintains stable operation during each run
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#10
16% Off
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- Not available for shipment to California addresses.
- Designed for use outside of California.
- Shipping restrictions apply: cannot deliver to California.
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- Not available for shipment to California addresses.
- Designed for use outside of California.
- Shipping restrictions apply: cannot deliver to California.
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