DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine
DuroMax  500cc 1-Inch Shaft Recoil Start Gasoline Engine

500cc 1-Inch Shaft Recoil Start Gasoline Engine

DuroMax XP20HP
MSRP Regular price $499.00 Sale price $399.00
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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.
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500cc 4-Stroke OHV Engine

Our largest and most powerful single cylinder engine, perfect for projects that demand serious power.

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XP20HP Specifications

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 N·m) @ 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 Yes
50 State Emissions Yes
Warranty 3 Year
What's in the Box? DuroMax XP20HP Engine, Spark Plug Wrench, Oil Funnel, and Owner’s Manual

Mounting Diagrams

Measured in millimeters (mm)

Bottom

Shaft

Side

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XP20HP Specifications

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 N·m) @ 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 Yes
50 State Emissions Yes
Warranty 3 Year
What's in the Box? DuroMax XP20HP Engine, Spark Plug Wrench, Oil Funnel, and Owner’s Manual

Warranty Information

DuroMax stands behind this product with a 3 Year parts and technical service warranty. Our USA based teams are available to help walk-through, troubleshoot or diagnose. Nationwide service centers fix any issues - DuroMax has you covered!

DuroMax Power Product Support Files and Manuals

Contact DuroMax Power for Product Support

Product Registration
XP20HP
$499.00 $399.00
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