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Honda's V-Twin range of engines are the cream of the crop, powering pressure washers, water pumps and commercial lawncare equipment.

The GX630 V-Twin can also be found in cultivators, agricultural equipment and generators as well as heavy-duty forestry and industrial industries.


The fuel economy of the GX630 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.

Add a two barrel inner-vent carburettor 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 GX630's high capacity pump facilitates consistent oil delivery, and a handy oil alert will help protect your motor from 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.

COMMON APPLICATIONS - Honda's V-Twin range of engines are the cream of the crop, powering Grain Augers, Ride-On Lawnmowers, and Commercial Lawn and Garden Equipment across New Zealand. The V-Twin range can also be found used for High Output Pumps, Pressure Washers, Generators and other Agricultural Equipment as well as many different applications. If it's something more demanding that you need power for, the V-Twin range can also be used in the Forestry and Construction/Industrial industries.

Model GX630  (GX630RHQZB3)
Type Air cooled 4-stroke OHV petrol engine, 90° V-twin design, horizontal shaft
Bore & Stroke 2 / 78 x 72 mm
Displacement 688cm3
Compression Ratio 9.3:1
Net Power 15.5 kW (20.8 HP) / 3 600 pm
Continuous Rated Power 10.5 kW (14.1 HP) / 3000rpm 12.0 kW (16.1 HP) / 3600rpm
Max Net Torque 48.3Nm / 4.93kgfm / 2500rpm
Ignition System Digital CDI with variable ignition timing
Starting System Electric starter
Cooling System Forced-Air
Fuel Consumption at Rated Power 6.0 L/hr - 3600rpm
Lubrication System Full-pressure
Recommended Fuel Unleaded


Oil Capacity
Without oil filter replacement: 1.5L
With oil filter replacement: 1.7L
Dimensions 405 x 410 x 438mm
Dry Weight 44.4kg


 Note* Muffler Not Included Note* All Items are Subject to Availability. Delivery is not included.