Honda Horizontal OHV Engine 389cc GX Series 1in x 3 31 64in Shaft
The Honda Horizontal OHV Engine 389cc GX Series is a gold standard for commercial and industrial power equipment, renowned for its superior reliability and low maintenance. This engine delivers high torque and consistent performance for generators, construction equipment, and pressure washers. It features the legendary Honda GX Series quality, a durable OHV design, and a 1in. keyed shaft (3-31/64in. long). Choose this Honda 389cc GX engine for its powerful performance, fuel efficiency, and the uncompromising commercial-grade longevity that minimizes downtime.
| Brand | Honda Engines |
| Manufacturer’s Warranty | 3 year limited warranty |
| Ship Weight | 85.0 lbs |
| Engine Displacement | 389 cc |
| Engine Type | GX Series OHV commercial-duty |
| Net Power Output | 11.7 HP |
| Start Type | Recoil |
| Shaft Diameter | 1 in |
| Shaft Length | 3.48 in |
| Net Torque | 19.5 ft-lbs. |
| Shaft Output | Horizontal |
| Shaft Keyway | 0.25 in |
| Shaft End Tapped (Diameter (in.)/Threads per inch) | 3/8-24 |
| Shaft Rotation (From PTO Shaft Side) | Counterclockwise |
| Crankshaft | Q-type |
| PTO Height | 5.25 in |
| Cylinders (qty.) | 1 |
| Cylinder Bore | Cast iron |
| Compression Ratio | 8.2:1 |
| Cooling System | Air cooled |
| Bore | 3.5 in |
| Stroke | 2.5 in |
| Air Cleaner Type | Dual element |
| Fuel Tank | Yes |
| Fuel Type | Gasoline |
| Fuel Tank Capacity | 6.4 qt |
| Fuel Filter | Fuel tank filler neck strainer |
| Oil Capacity | 1.16 qt |
| Low Oil Alert | Yes |
| Low Oil Shutdown | Yes |
| Lubrication System | Splash |
| Ignition System | Electronic |
| Governor System | Centrifugal mechanical |
| Carburetor | Float, external vent |
| Throttle Control | Remote (wire) |
| Choke Control | Manual |
| Max. RPM | 3,600 |
| Muffler Included | Yes |
| Auto Compression Release | Yes |
| CARB Approval | No |
| Bolt Circle | 5, 6.5 in |
| Mounting Base Length | 7.68 in |
| Mounting Base Width | 3.39 to 4.06 in |
| Dimensions L x W x H (in.) | 15.87 x 17.68 x 17.37 in |
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