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
NorthStar c180 Horizontal OHV Engine with Recoil Start, 179cc, 3/4in. x 2-7/16in. Shaft
Kohler Command PRO V-Twin Cylinder OHV Horizontal Engine - 20.5 HP, 674cc, 1.437in. x 4.41in. Shaft, Model# PA-CH640-3165
Kohler Command PRO Horizontal OHV Engine with Electric/Recoil Start - 429cc, 1in. x 3.49in. Shaft, 3600 RPM, Model# PA-CH440-3270
Engine Displacement
Same
500 cc
179 cc
675 cc
429 cc
Engine Type
Same
4-Stroke
OHV
Horizontal Gas
Command Pro
Shaft Diameter
Same
1 in
3/4 in
1-7/16 in
1 in
Shaft Diameter Metric
Same
25.4 mm
19.05 mm
36 mm
-
Shaft Length
Same
3.53 in
2.43 in
4.41 in
3.49 in
Shaft Length Metric
Same
89.66 mm
61.7 mm
9.5 mm
88.646 mm
Fuel Type
Same
Gasoline
-
-
Gasoline
Start Type
Same
Recoil
Recoil
Electric
Electric and Recoil
Shaft Keyway
Same
1/4 in
1-51/64 in
3/8-16 UNF in
3/8-24 UNF in
Net Torque
Same
22.87 ft-lbs.
9.5 ft-lbs.
35.7 ft-lbs.
22.7 ft-lbs.
Fuel Tank
Same
Yes
Yes
-
Yes
Fuel Tank Capacity
Same
1.35 qt
3.49 qt
-
1.7 qt
Oil Capacity
Same
0.4 qt
0.58 qt
2 qt
1.7 qt
Max. RPM
Same
4,000
-
-
3,750
Bore
Same
3.7 in
2.55 in
3.1 in
3.5 in
Stroke
Same
2.83 in
2.125 in
2.6 in
2.7 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
-
SAE J609EXT3 Straight Key W/shaft Dia.: 19.050mm (0.750in.) - Nominal
Hardened
Hardened
PTO Height
Same
-
4.17 in
-
-
Cylinders (qty.)
Same
-
1
2
1
Cylinder Bore
Same
-
2.56
Cast Iron
Cast Iron
Net Power Output
Same
-
3.7 HP
20.5 HP
14 HP
Compression Ratio
Same
-
8.5:1
8.5:1
8.0:1
Low Oil Shutdown
Same
-
Yes
Yes
Yes
Low Oil Alert
Same
-
Yes
Yes
Yes
Shaft Rotation (From PTO Shaft Side)
Same
-
Counter Clockwise
Counter Clockwise
Counter Clockwise
Governor System
Same
-
Yes
Variable Speed Control
-
Ignition System
Same
-
Transitorical Configuration
Electronic
Electronic
Carburetor
Same
-
Carburated
Smart Choke
Yes
Lubrication System
Same
-
Splash
Full Pressure
Splash
Bearing Type
Same
-
Ball
Parent Material
Ball
Auto Compression Release
Same
-
Yes
-
No
Cooling System
Same
-
Air
Air
Air
Air Cleaner Type
Same
-
Foam+paper
Dual Element
Dual Element
Choke Control
Same
-
Manual
Automatic
Remote
Throttle Control
Same
-
Adjustable
Automatic
Remote
Charging System Amps
Same
-
No
20
3
Muffler Included
Same
-
Yes
Yes
Yes
Bolt Circle
Same
-
3.625 in
-
-
Mounting Base Length
Same
-
6.378 in
-
-
Mounting Base Width
Same
-
3.15 in
-
-
Fuel Filter
Same
-
-
Yes
Yes
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