iGX390 13.0 Horsepower (STR)
Taking intelligence to a whole new level.
iGX390
The iGX390 is technologically advanced, offering you features and performance like no other small engine in the world. With its multi-function, high performance design combined with the same superior reliability of Honda's legendary GX engines, the iGX sets a new standard for engines.
Common Applications
- Pressure washers
- Generators
- Forestry equipment
- Construction / industrial equipment
- Agricultural equipment
- Water pumps
- Trailer Hydraulics

IMAGE | QTY | SKU | * | PTO | STARTER | AIR CLEANER | OIL ALERT | NOTES | DRY WEIGHT |
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Product Specifications | |
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Bore x Stroke | 88 X 64 mm (3.5 x 2.5 in) |
Carburetor | Horizontal type butterfly valve |
Compression Ratio | 8.2 : 1 |
Dimensions (L x W x H) | 407 x 485 x 449 mm (16.0 x 19.1 x 17.7 in) |
Displacement | 389 cm3 |
Engine Type | Air-cooled, 4-Stroke, OHV, single cylinder |
Fuel Tank Capacity | 6.1 l (6.4 US qt) |
Governor System | Electric Starter (Self Tuning) |
Ignition System | Digital CDI with variable ignition timing |
Lubrication System | Splash |
Net Horse Power Output* | 8.7 kW (11.7 HP) at 3,600 rpm |
Net Torque | 26.4 Nm (19.5 lbs ft) at 2,500 rpm |
Oil Capacity | 1.1l (1.16 US qt .97 Imp qt.) |
PTO Shaft Rotation | Counterclockwise (from PTO shaft side) |
FREE SHIPPING OPTIONS:
* STENS, NGK & BOSCH - Orders of $300+
* OPTI LUBRICANTS - Orders of $600+
* UNITS - MIX'N MATCH ANY COMBINATION OF 6 (ENGINES INCLUDED)