Product studio shot from a direct side profile view of the red and white Honda GX240 HA2 horizontal shaft utility engine against a white background, displaying its black pull-start recoil assembly, white top-mounted fuel tank with a chrome gas cap, and a black side air filter housing.
A three-quarter angle product studio view of the Honda GX240 270cc 7.9HP overhead valve commercial engine, highlighting the red cooling fan shroud with the standard black and red GX240 logo badge, the black plastic intake box, a chrome gas cap, and a metal box muffler.
A slightly elevated front-facing studio product angle of the Honda GX240 recoil start small engine, demonstrating the red metal engine body shroud, a black pull-rope starter handle, a prominent white fuel tank, and a safety warning label decal on the side of the tank.
A direct rear-facing studio shot of the Honda GX240 utility engine, showcasing the raw silver cast-aluminum crankcase cover, the keyway horizontal output drive shaft, an integrated gear reduction gearbox casing, and the black slotted exhaust muffler assembly.
A side-view product studio image looking straight onto the horizontal keyway output shaft side of the Honda GX240 commercial motor, showing the silver metal OHV overhead valve cylinder head cover, the unpainted lower engine block crankcase, and the red plastic fuel shut-off shroud section.
An opposing side profile studio shot of the Honda GX240 7.9HP horizontal shaft engine, displaying a bright red on/off toggle engine switch dial, the aluminum engine block structure with stamped serial numbers, a grey plastic oil fill plug, and a white top fuel tank.
An exact duplicate front-facing side profile studio shot of the Honda GX240 HA2 270cc horizontal utility engine on a white background, reinforcing its black direct-drive recoil starter handle, red metal shroud, white fuel cell, and black protective air cleaner assembly.
Product studio shot from a direct side profile view of the red and white Honda GX240 HA2 horizontal shaft utility engine against a white background, displaying its black pull-start recoil assembly, white top-mounted fuel tank with a chrome gas cap, and a black side air filter housing.
A three-quarter angle product studio view of the Honda GX240 270cc 7.9HP overhead valve commercial engine, highlighting the red cooling fan shroud with the standard black and red GX240 logo badge, the black plastic intake box, a chrome gas cap, and a metal box muffler.
A slightly elevated front-facing studio product angle of the Honda GX240 recoil start small engine, demonstrating the red metal engine body shroud, a black pull-rope starter handle, a prominent white fuel tank, and a safety warning label decal on the side of the tank.
A direct rear-facing studio shot of the Honda GX240 utility engine, showcasing the raw silver cast-aluminum crankcase cover, the keyway horizontal output drive shaft, an integrated gear reduction gearbox casing, and the black slotted exhaust muffler assembly.
A side-view product studio image looking straight onto the horizontal keyway output shaft side of the Honda GX240 commercial motor, showing the silver metal OHV overhead valve cylinder head cover, the unpainted lower engine block crankcase, and the red plastic fuel shut-off shroud section.
An opposing side profile studio shot of the Honda GX240 7.9HP horizontal shaft engine, displaying a bright red on/off toggle engine switch dial, the aluminum engine block structure with stamped serial numbers, a grey plastic oil fill plug, and a white top fuel tank.
An exact duplicate front-facing side profile studio shot of the Honda GX240 HA2 270cc horizontal utility engine on a white background, reinforcing its black direct-drive recoil starter handle, red metal shroud, white fuel cell, and black protective air cleaner assembly.
Honda

Honda Horizontal Engine GX240 HA2 270cc 7.9 HP 6 to 1 Gear Reduction Recoil Start (1 Inch Shaft Gas Power Commercial Equipment Drive)

In stock
SKU: GX240UT2HA2
$795.00 USD

Description

Honda GX240 HA2 270cc 7.9 HP Horizontal OHV Gas Engine with 6:1 Gear Reduction and 1-Inch Keyed Shaft

The Honda GX240 HA2 (GX240UT2HA2) Horizontal Shaft Engine is a commercial-grade 270cc overhead valve (OHV) power unit engineered to deliver 7.9 net horsepower with integrated 6:1 gear reduction for high-torque industrial machinery. Equipped with a 1-inch diameter keyed crankshaft, digital CDI variable ignition, dual-element air filtration, and an Oil Alert system, this recoil-start engine reduces output shaft rotation speed to amplify drive torque required on heavy-duty cement mixers, agricultural pumps, and power trowels.

Best Used For:

  • High-Torque Cement & Mortar Mixers: Driving heavy-batch concrete mixing drums that require low shaft RPM with massive mechanical torque output.
  • Agricultural Pumping & Chemical Spraying: Powering high-pressure fluid transfer pumps and agricultural spray rigs requiring continuous duty power.
  • Industrial Construction Machinery: Operating concrete saws, power trowels, and heavy compaction equipment under severe jobsite dust exposure.

Key Performance & Safety Features

  • Integrated 6:1 Gear Reduction Box: Internal gear reduction unit lowers crankshaft output speed to 600 RPM max while multiplying rotational torque sixfold.
  • 7.9 Net HP 270cc Commercial Engine: Precision overhead valve (OHV) combustion chamber layout maximizes fuel efficiency and thermal dissipation.
  • Heavy-Duty 1-Inch Keyed Crankshaft: Precision-machined 1-inch x 3.37-inch steel output shaft with 1/4-inch keyway fits standard industrial pulleys and couplings.
  • Oil Alert Low-Oil Shutdown Protection: Automatic safety sensor disables ignition circuit if oil volume drops below safe operating levels to prevent engine seizure.
  • Digital CDI with Variable Ignition Timing: Electronic ignition timing delivers effortless manual recoil pull-starting and smooth throttle acceleration under load.
  • Cast Iron Cylinder Sleeve & Dual Air Filter: High-wear cast iron cylinder bore and dual-element filter media isolate fine silica dirt from internal piston rings.

What's Included

  • (1) Honda GX240 HA2 (GX240UT2HA2) 270cc Horizontal Engine with 6:1 Gear Reduction
  • (1) Pre-Installed Heavy-Duty Manual Recoil Starter Assembly
  • (1) Factory Muffler Assembly with Spark Arrestor and Heat Shield
  • (1) Integrated Oil Alert Low-Oil Shutdown System
  • (1) Dual-Element Heavy-Duty Air Cleaner Assembly

Technical Specifications

Brand / Manufacturer Honda Engines
Model / Part Number GX240 HA2 (GX240UT2HA2)
Engine Displacement 16.5 cu. in. (270 cc)
Net Power Output 7.9 HP (5.9 kW) @ 3,600 RPM
Gear Reduction Ratio 6:1 Gear Reduction (600 RPM Max Output)
Crankshaft Dimensions 1.0 in. Dia x 3.37 in. Length (25.4 mm x 85.6 mm)
Crankshaft Keyway Width 0.25 in. (6.35 mm) Keyway
Starting System Manual Recoil Starter
Fuel Tank Capacity 5.6 qts (5.3 Liters)
Oil Capacity & Lubrication 38.0 oz (1.1 Liters) Splash Lubrication
Compression Ratio & Bore 8.5:1 Compression / 2.87 in. x 2.28 in. (73 mm x 58 mm)
Dry Weight 60.0 lbs (27.21 kg)
Warranty Coverage 36 Months Commercial / Residential / Rental Warranty
Pro-Tip: Always remember that engines with built-in 6:1 gear reduction boxes require separate gearcase oil servicing in addition to filling the main engine crankcase prior to initial engine break-in.