Please Note: Limited Availability

Honda GX390 OHV Engine

• Honda OHV Commercial-grade engine
• Horizontal shaft
• Electronic ignition/Oil Alert
• EPA/CARB compliant
• Electric Start

Honda recommends this engine for the following applications: Commercial turf equipment, Lawn tractors, Floor buffers (propane), Riding mowers, Blower/vacs

Specifications

Engine Type: Air-cooled, 4-Stroke, OHV, single cylinder

Bore x Stroke: 3.5 x 2.5 in

Displacement: 20.6 cu in

Compression Ratio: 8.0 : 1

Net Horse Power Output:9.5HP at 3,600 rpm

Net Torque: 16.3 lbs ft at 2,500 rpm

Ignition System: Transistorized magneto ignition

Starting System: Electric Starter

Carburetor: Horizontal type butterfly valve

Lubrication System: Forced Splash

Governor System: Centrifugal Mechanical

Air Cleaner: Dual Element Type (opt Cyclone type)

Oil Capacity: 1.16 US qt

Fuel Tank Capacity: 6.4 US qt

Dimensions (L x W x H): 15.0 in x 16.9 in x16.1 in

Dry Weight: 68.3 lbs

The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 3600 rpm (7000 rpm for model GHX50). Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operating speed of the engine in application, environmental conditions, maintenance and other variables.