Free shipping over $199

DuroMax XP20HP 500cc 1-Inch Shaft Recoil Start Gasoline Engine

by DuroMax

$499.00 + Free Shipping
Estimate Only, Carrier Delays May Occur
Shipping to
Ship To

Condition: New


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.

  • 500cc 4-Stroke OHV engine
  • Large 1.35-gallon fuel tank
  • Runs on standard 87 Octane gasoline
  • E-Z pull recoil starter
  • Air Cleaner: Dual, semi-dry, oil bath
  • EPA and CARB approved for safe mandated use
  • Applications: Go Karts, Pressure Washers, Trailer Mounted - Mobile Carwashes, Log Splitters, RotoTillers - Cultivators, Water/Trash Transfer Pump

What's in The Box
  • DuroMax XP20HP Engine
  • Spark Plug Wrench
  • Oil Funnel
  • Owner's Manual
  • 3-Year Limited Factory Warranty
  • 30 Day Satisfaction Guaranteed
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

Spend $199 or more and receive Fast FREE Ground Shipping on your order. Plus for those of you who need your order even quicker, spending $199 or more we pass the savings on to you by offering Discounted Express Shipping. For orders under $199, you will only pay a flat fee of $8.95. This shipping offer applies to the Continental US ONLY. All locations outside the Continental US will receive discounted shipping, if you have any questions please feel free to contact us. Full Shipping Policy.