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Stationary Engine GX660


Stationary Engine GX660


Honda’s V-Twin range of engines are the cream of the crop, powering Pressure Washers, Water Pumps and Commercial Lawn & Garden Equipment across Australia. The Stationary Engine GX660 V-Twin can also be found in Tillers/Cultivators and other Agricultural Equipment, Generators and in many different applications.

And if it’s something more hardcore that you need power for, the GX660 is also used in the Forestry and Construction/Industrial industries.


The fuel economy of the Stationary Engine GX660 V-Twin is similar to fuel injection, with the simplicity of carburetion ensuring that running this unit is easy on both your pocket and the environment.

It features a digital CDI ignition system with variable timing, as well as a forged steel crankshaft and insert style rod bearings for efficient operation. There’s also a rev limiter to protect against damage from over-revving. A hemispherical combustion chamber delivers rapid combustion, and it features Pressure fed crankshaft bearings.

Add a two barrel inner-vent carburetor for more precise fuel metering and a 9.3:1 compression ratio, and you’ll be generating high power output without the need for premium fuel.


The Stationary Engine GX660’s high capacity pump facilitates consistent oil delivery, and a handy Oil Alert will keep you posted if you look like running dry.

There’s a dual cylindrical air filter, and a large diameter air intake on board for superior cooling.

The result is a long-lasting, high-performing and reliable engine.


Don’t forget, all Honda V-Twin Engines are covered by a Honda 3 Year Domestic & 1 Year Commercial Warranty.

You can work your GX660 V-Twin as hard as you want. It’s built to last.

Engine Type

Air cooled 4-stroke OHV petrol engine, 90° V-twin design

Bore x Stroke (mm)

2 / 78 x 72

Displacement (cc)


Compression Ratio


Starter Type

Electric Start


Digital CDI with variable ignition timing

Charge Coil (Amps)


Horsepower Class (hp)


Net Power (kw)

16.0 (21.5 HP) / 3 600 rpm

Continuous Rated Power (kw)

11.0 (14.8 HP) / 3000 rpm 12.5 (16.8 HP) / 3600 rpm

Max Torque (Nm)

48.3 at 2500 rpm

Gearbox Reduction and Clutch


Shaft Size

1 1/8 inch

Shaft Type


Shaft Vertical / Horizontal


Fuel Type


Fuel Tank Capacity (Ltrs)


Fuel Consumption (L/Hour)

6.3 at 3600 rpm

Oil Capacity (Ltr)


Dimensions LxWxH (mm)

429 x 410 x 438

Dry Weight (kg)



Agricultural Equipment, Commercial Lawn and Garden, Construction / Industrial Equipment, Forrestry Equipment, Generators, Pressure Washers, Small Vehicles, Tillers / Cultivators, Water Pumps

Muffler Options Diagram

Click here to open / download the PDF

Stationary Engine GX660


Honda V-Twin engines offer higher horsepower, improved adaptability, quiet operation, and greater fuel efficiency. Not to mention a 3 year domestic warranty

  •  Click to view

    These muffler prices are only available with the purchase of a

    GX V-Twin engine. (Direction as viewed from Power Take Off)

    Please see / download the muffler options diagram on this page.

    • 90 $
    • 90 $
    • 108 $
    • 214 $
    • 214 $
    • 233 $
    • 233 $

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