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
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$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.
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Specifications
Specifications
DuroMax, 500cc Recoil Start Gasoline Engine, Engine Displacement 500 cc, Engine Type 4-Stroke, Shaft Diameter 1 in, Model# XP20HP
Kohler Horizontal 4-Stroke Diesel Engine - 9.1 HP, Air-Cooled, 12V Electric Start, Model# PA-KD440-2101C
Honda Engines, HONDA V-TWIN HORIZ GX690RHXTAF, Engine Displacement 688 cc, Engine Type GX Series OHV V-twin, Shaft Diameter 1-1/8 in, Model# GX690RHXTAF
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
Engine Displacement
Same
500 cc
441 cc
688 cc
688 cc
Engine Type
Same
4-Stroke
Diesel Horizontal
GX Series OHV V-twin
GX Series OHV V-twin
Shaft Diameter
Same
1 in
-
1-1/8 in
1-1/8 in
Shaft Diameter Metric
Same
25.4 mm
-
-
-
Shaft Length
Same
3.53 in
-
3.5 in
2.9 in
Shaft Length Metric
Same
89.66 mm
-
-
-
Fuel Type
Same
Gasoline
-
-
-
Start Type
Same
Recoil
Electric
Electric
Electric
Shaft Keyway
Same
1/4 in
-
0.25 in
0.25 in
Net Torque
Same
22.87 ft-lbs.
-
35.6 ft-lbs.
35.6 ft-lbs.
Fuel Tank
Same
Yes
-
No
No
Fuel Tank Capacity
Same
1.35 qt
-
-
-
Oil Capacity
Same
0.4 qt
1.6 qt
2 qt
2.1 qt
Max. RPM
Same
4,000
-
-
-
Bore
Same
3.7 in
3.4 in
3.1 in
-
Stroke
Same
2.83 in
3 in
2.8 in
-
Product Weight
Same
75.0000 lb
-
-
-
Dimensions L x W x H (in.)
Same
20.47 x 17.0 x 19.0 in
-
-
-
Cylinders (qty.)
Same
-
1
2
2
Cylinder Bore
Same
-
Cast Iron
Integrated
Integrated
Net Power Output
Same
-
9.1 HP
22.1 HP
22.1 HP
Compression Ratio
Same
-
20.3:1
9.3:1
9.3:1
Low Oil Alert
Same
-
Yes
Yes
No
Shaft Rotation (From PTO Shaft Side)
Same
-
Counter Clockwise
Counter Clockwise
Counter Clockwise
Governor System
Same
-
Yes
Mechanical
Mechanical
Ignition System
Same
-
Electronic
Electrical, Digital CDI W/variable Ignition Timing
Electrical, Digital CDI W/variable Ignition Timing
Carburetor
Same
-
Direct Injection
(2) Barrel, Fuel Cut Solenoid, Inner Vent
Horizontal, Two-barrel Butterfly Valve, Internal Vent
Lubrication System
Same
-
Full Pressure With Full Flow Filter
Full Pressure
Forced Lubrication
Auto Compression Release
Same
-
Yes
-
Yes
Cooling System
Same
-
Air
Air
Air
Air Cleaner Type
Same
-
Single Element
Dual Element
-
Charging System Amps
Same
-
20
20
-
Muffler Included
Same
-
Yes
No
-
Crankshaft
Same
-
-
T-type
T-type
Low Oil Shutdown
Same
-
-
No
No
Bearing Type
Same
-
-
Ball
Ball
Choke Control
Same
-
-
Manual
-
Throttle Control
Same
-
-
Manual
-
PTO Height
Same
-
-
-
5.25 in
See All Horizontal Engines
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