Due to various types of horsepower testing, DuroMax does not provide a horsepower rating.
DuroMax, 500cc Recoil Start Gasoline Engine, Engine Displacement 500 cc, Engine Type 4-Stroke, Shaft Diameter 1 in, Model# XP20HP
This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.
Click or Tap image to Zoom
$499.00
- 500cc 4-Stroke OHV Engine. Our largest and most powerful single cylinder engine, perfect for projects that demand serious power.
- With its reliable E-Z pull recoil start, you can get engine up and running in no time
- DuroMax Engine is easy to use and perfect for a wide range of applications.
See full description
See All Horizontal Engines
See All DuroMax Horizontal Engines
Currently Viewing This Product
Specifications
Specifications
DuroMax, 500cc Recoil Start Gasoline Engine, Engine Displacement 500 cc, Engine Type 4-Stroke, Shaft Diameter 1 in, Model# XP20HP
Honda Engines, HONDA 270CC 6:1 ENGINE, Engine Displacement 270 cc, Engine Type GX Series OHV Commercial-duty, Shaft Diameter 1 in, Model# GX270UT2HA2
Honda Engines, HONDA V-TWIN HORIZ GX690RTDW, Engine Displacement 688 cc, Engine Type GX Series OHV V-twin, Shaft Diameter 1-1/8 in, Model# GX690RHXTDW
Honda Engines, HONDA GC160 ENGINE - BLACK, Engine Displacement 160 cc, Engine Type GC Series OHC Residential-duty, Shaft Diameter 3/4 in, Model# GC160LAMHAB-BLK
Engine Displacement
Same
500 cc
270 cc
688 cc
160 cc
Engine Type
Same
4-Stroke
GX Series OHV Commercial-duty
GX Series OHV V-twin
GC Series OHC Residential-duty
Shaft Diameter
Same
1 in
1 in
1-1/8 in
3/4 in
Shaft Diameter Metric
Same
25.4 mm
-
-
-
Shaft Length
Same
3.53 in
3.23 in
2.9 in
1.89 in
Shaft Length Metric
Same
89.66 mm
-
-
-
Fuel Type
Same
Gasoline
-
-
-
Start Type
Same
Recoil
Recoil
Electric
Recoil
Shaft Keyway
Same
1/4 in
-
0.25 in
0.18 in
Net Torque
Same
22.87 ft-lbs.
14.1 ft-lbs.
35.6 ft-lbs.
6.9 ft-lbs.
Fuel Tank
Same
Yes
-
No
Yes
Fuel Tank Capacity
Same
1.35 qt
5.6 qt
-
1.9 qt
Oil Capacity
Same
0.4 qt
1.16 qt
2.1 qt
0.61 qt
Max. RPM
Same
4,000
-
-
-
Bore
Same
3.7 in
3 in
-
2.5 in
Stroke
Same
2.83 in
2.3 in
-
2 in
Product Weight
Same
75.0000 lb
-
-
-
Dimensions L x W x H (in.)
Same
20.47 x 17.0 x 19.0 in
-
-
-
Crankshaft
Same
-
H-type
T-type
M-type
PTO Height
Same
-
5.25 in
5.25 in
4.17 in
Cylinders (qty.)
Same
-
1
2
1
Cylinder Bore
Same
-
Cast Iron
Integrated
Aluminum
Net Power Output
Same
-
8.5 HP
22.1 HP
4.6 HP
Compression Ratio
Same
-
8.5:1
9.3:1
8.5:1
Shaft Rotation (From PTO Shaft Side)
Same
-
Counter Clockwise
Counter Clockwise
Counter Clockwise
Governor System
Same
-
Centrifugal Mechanical
Mechanical
Centrifugal Mechanical
Ignition System
Same
-
Electronic
Electrical, Digital CDI W/variable Ignition Timing
Electronic
Carburetor
Same
-
Float, External Vent
Horizontal, Two-barrel Butterfly Valve, Internal Vent
Float
Lubrication System
Same
-
Splash
Forced Lubrication
Splash
Cooling System
Same
-
Air
Air
Air
Air Cleaner Type
Same
-
Dual Element
-
Single Element
Choke Control
Same
-
Manual
-
Manual
Throttle Control
Same
-
Manual
-
Manual
Fuel Filter
Same
-
Yes
-
Yes
Low Oil Shutdown
Same
-
-
No
No
Low Oil Alert
Same
-
-
No
No
Bearing Type
Same
-
-
Ball
Standard
Auto Compression Release
Same
-
-
Yes
Yes
Muffler Included
Same
-
-
-
Yes
See All Horizontal Engines
See All DuroMax Horizontal Engines
Recently Viewed Items
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.