The DuroMax XP20HP is our largest and most powerful single cylinder engine we offer; this 500cc 4-stroke OHV powerhouse is suitable for multiple heavy-duty applications including go karts, pressure washers, trailer mounted-mobile carwashes, log splitters, roto tillers- cultivators, and water/trash transfer pumps. This engine is equipped with convenient features like a large 1.35-gallon gas tank for longer runtimes, an E-Z pull recoil starter to start the engine with ease, and EPA and CARB approved for safe mandated use.
Specifications
| Manufacturer | DuroMax Power Equipment |
| Part # | XP20HP |
| Engine Type | 4-Stroke |
| Valve Type | OHV |
| Engine Cooling Type | Forced Air |
| Displacement | 500 cc |
| Bore | 94 mm |
| Stroke | 72 mm |
| Max Output | 4000 rpm |
| Max Torque | 22.87 Ft/lbs (31 Nm) @ 2500 rpm |
| Shaft Orientation | Horizontal |
| Shaft Size | 1" diameter, 3.535" long, 1/4" keyway |
| Shaft End | 3/8" size 24 UNF – 2B drilled and tapped |
| Shaft Rotation | Counter-Clockwise |
| Measurement from Center of Shaft to Base | 5.26" |
| Fuel Tank Capacity | 1.35 gallons |
| Fuel Types | Gasoline |
| Fuel Delivery System | Carburetor |
| Average runtime on gasoline | 2 hours |
| Starting type | Recoil Start |
| Recoil Start | Yes |
| Cast Iron Sleeve | Yes |
| Bearing Type | Stainless Steel Ball Bearing |
| Oil Cooling Type | Splash |
| Oil Capacity | 40.5 fluid oz. |
| Recommended Oil | 10W-30 |
| Recommended Oil Types | Blended, Conventional, or Synthetic |
| Product Dimensions | 19" L x 17" W x 19" H |
| Weight | 77 lbs |
| UPC | 811640016869 |
| EPA Certified | Yes |
| CARB Certified | No |
| 50 State Emissions | No |
