DuroMax XP18HPE 440cc 1'' Shaft Recoil/Electric Start Gas Powered Engine

DuroMax XP18HPE 440cc 1'' Shaft Recoil/Electric Start Gas Powered Engine

The DuroMax XP18HPE is DuroMax’s largest and most powerful single-cylinder engine, delivering big-time muscle from a 439cc 4-stroke OHV platform for demanding equipment and serious projects. It’s built for heavy-duty use on go karts, pressure washers, log splitters, tillers/cultivators, trailer-mounted car washes, and water/trash transfer pumps, and it adds user-friendly features like a 1.7-gallon fuel tank, key-switch electric start, and an E-Z Pull recoil starter for flexible starting options. EPA/CARB approval rounds it out—so it’s powerful, compliant, and ready to work (unlike that one tool that’s always “missing” when you need it).

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: XP18HPE
• Brand / Manufacturer: DuroMax Power Equipment
• Product Type: Gas-powered horizontal shaft engine (recoil + electric start), 1" shaft
• Engine Type: 4-stroke
• Valve Type: OHV
• Engine Cooling Type: Forced air
• Displacement: 439cc
• Bore / Stroke: 92mm / 66mm
• Max Output / Speed: 3600 RPM
• Max Torque: 26.26 ft-lb
• Shaft Orientation: Horizontal
• Shaft Size: 1" diameter, 2-3/4" long, 1/4" keyway
• Shaft End: 3/8" size 24 UNF — drilled and tapped
• Shaft Rotation: Counter clockwise
• Center of Shaft to Base: 5"
• Fuel Tank Capacity: 1.7 gallons
• Fuel Type: Gasoline
• Fuel Delivery System: Carburetor
• Average Run Time / Fuel Use: 1/2 gallon per hour (at 1/2 load)
• Starting Type: Key switch
• Electric Start: Yes
• Recoil Start: Yes
• Cast Iron Sleeve: Yes
• Bearing Type: Stainless steel ball bearing
• Oil Cooling Type: Splash
• Oil Capacity: 37.2 fl oz
• Recommended Oil: 10W-30
• Recommended Oil Types: Blended, conventional, or synthetic
• Dimensions: 20" L x 18" W x 19" H
• Weight: 77 lbs
• EPA Certified: Yes
• CARB Certified: Yes
• 50 State Emissions: Yes
• UPC: 811640014155
• Warranty: 3 year
• What’s in the Box: XP18HPE engine, 12V battery leads, owner’s manual

Ideal For

• Heavy-duty projects needing a single-cylinder powerhouse (439cc class)
• Powering pressure washers, log splitters, tillers/cultivators, and water/trash pumps
• Trailer-mounted/mobile wash setups that need reliable torque and runtime
• Users who want electric start convenience plus recoil backup
• Anyone who wants maximum single-cylinder power without jumping to a V-Twin setup