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4.0 out of 5 stars. 3 reviews
A woman outside with a dog
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DuroMax 439Cc 1 in. Shaft Recoil/Electric Dual Fuel Engine, XP18HPX

DuroMax 439Cc 1 in. Shaft Recoil/Electric Dual Fuel Engine, XP18HPX

Item # 205469099

DuroMax DuroMax 439Cc 1 in. Shaft Recoil/Electric Dual Fuel Engine, XP18HPX
DuroMax DuroMax 439Cc 1 in. Shaft Recoil/Electric Dual Fuel Engine, XP18HPX

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$599.99
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DuroMax 439Cc 1 in. Shaft Recoil/Electric Dual Fuel Engine, XP18HPX

Item # 205469099

DuroMax DuroMax 439Cc 1 in. Shaft Recoil/Electric Dual Fuel Engine, XP18HPX
DuroMax DuroMax 439Cc 1 in. Shaft Recoil/Electric Dual Fuel Engine, XP18HPX

Free delivery

Discount applied in cart

$599.99
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or
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$50/mo.†  suggested payments with 12 Months Financing or earn $29 in Rewards+ on this purchase.

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The DuroMax XP18HPX is our largest and most powerful Dual Fuel engine. This 439cc 4-stroke OHV powerhouse is suitable for multiple heavy duty applications including go karts, pressure washers, trailer-mounted mobile carwashes, log splitters, rototillers/cultivators, and water/trash transfer pumps. The XP18HPX comes equipped with convenient features such as a large 1.4 gal. gas tank., a propane hookup for flexibility and longer runtimes, an electric keyed start, and an E-Z pull recoil starter. This engine is EPA and CARB approved for safe mandated use.3-Year Residential / 1-Year Commercial Warranty

For additional information on this product, please see the Product Documents section for all downloadable user manuals, installation guides, brochures and warranty statements.

Looking for more information on lawn mower maintenance? Check out our guide on lawn mower maintenance in the product documents section.

  • 439cc 4-Stroke OHV engine
  • Large 1.4 gal. fuel tank
  • Runs on standard 87 Octane gasoline or propane
  • Electric start key switch box
  • E-Z pull recoil starter
  • Air Cleaner: Dual, semi-dry, oil bath
  • Propane hose and regulator included
  • 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

Q&As

1 - 4 of 4 Questions

Q: What is the bolt circle dimension of the engine on shaft face? Will it accommodate a hydraulic pump mount? W. O. B.

a year ago

Originally posted on duromaxpower.com

1 Answer
  • A: We could help you with the various bolt circle dimensions on the bolt pattern diagram. Please contact us at 844-DUROMAX or support@duromaxpower.com and we could provide this diagram upon request.
    a year ago

Q: Will this engine work on a champion generator?

a year ago

Originally posted on duromaxpower.com

1 Answer
  • A: We don't have this information available. We could provide the shaft diagram and bolt pattern to help you confirm if it will fit upon request. To obtain these diagrams please contact us at 844-DUROMAX or support@duromaxpower.com.
    a year ago

Q: How much horse power is the motor about?

a year ago

Originally posted on duromaxpower.com

1 Answer
  • A: Due to varying types of testing DuroMax does not list Horsepower Ratings for our engines.
    a year ago

Q: Is this the correct motor replacement for xp1300hx

2 years ago

Originally posted on duromaxpower.com

1 Answer
  • A: No, this engine will be built differently from the generator version of the engine. The XP13000HX engine part number is R500DNV00FB-MZL304 and you can purchase this part from us at 844-DUROMAX option 1.
    2 years ago

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