DuroMax XP18HPE 440cc 18-Hp Electric Start Horizontal Gas Powered Engine

by DuroMax
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Condition: New
  • 4 Stroke OHV engine.
  • Large 1.7 Gallon Fuel Tank.
  • Runs on Standard 87 Octane Gasoline
  • Start System: Electric Starter.
  • Alternative Start System: Recoil Starter.
  • Air Cleaner: Dual, Semi-dry, Oil Bath.
  • Engine May have slight alternate cosmetic styling
  • EPA 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 18hp Electric Start Engine
  • Owner's Manual
  • 1-Year Limited Factory Warranty
  • 30 Day Satisfaction Guaranteed
Displacement: 440cc Bore: 92, Stroke: 66.
Max Output: 18.0 HP / 3600 RPM.
Max Torque: 26.26 ft/lb.
Shaft Size: 1 Diameter, 2 Long
Shaft End: 3/8 Size 24 UNF - Drilled and Tapped
Measurement from Center of Shaft to Base: 5
Dimensions Of Unit: 16.4L x 17.9W x17.4H
Fuel Tank Capacity: 1.7 Gallons
Average Run Time: 1/2 Gallon Per Hour (at 1/2 load)
Dry Weight: 77 lbs
Recommended Fuel Type: Gasoline - 87 Octane Rating Or Better

Customer Reviews

Based on 5 reviews
Powerful enough

I bought this engine for my homemade band sawmill... I needed something with the power to push through hardwood and softwood, but didn't want a big bulky engine that limited my mills mobility. This engine is well shaped, similar to the picture, but not the same... As for performance, it does it's job, but the controls, starter, solenoid, and key start box are very cheaply made... The screw for the solenoid stripped with just a wrench and little pressure... The wiring diagram that comes in the owners manual doesn't match the actual wires on the engine or on the key box (I removed this altogether)... The throttle control on mine is made from thin galv metal and if used too much feels like it would bend or break clean off... As for the shaft and engine performance, it's great - usually starts on the first or second pull... It seems to have plenty of power for my sawmill, but I have nothing to compare it too...


Solenoid is garbage

No good wiring instructions

Controls are very cheaply made


Cost is excellent

Compact design

Starts easily

Shaft is well machined

Somewhat quiet running

It seems solid - no valve clanking, etc.

Works well overall

I gave it a 4 star rating for the fact that it's a good engine and does it's job regardless of controls, key box wiring, and solenoid issues... 5 stars for the engine itself and 1 star for the controls, wiring, and solenoid... Overall, I think 4 stars is fair for what I paid... I would also buy this engine again if I needed another one...,So far so good,I've ordered one engine from Maxtool and was pleased throughout the process...

1.7 gallons= 217.6 Fluid Onces

They report 3 hrs/1.7 gallons. Well I run a 12v 1 wire alternator to charge Deep Cycle Batteries. Just a little faster than an idle is how fast I keep it running. I run on average 9 hours on those 1.7 gallons or from dead battery "11.9 to as low as 11.5" volts "dead" battery to fully charged at 12.7 Volts at the end of a 10 hour period, 1 hour cool down after the charge. That is a 2 sets of 6 v Deep Cycle batteries wired as 12 v. Oh the 11.5 V is more than enough to start this 18 HP motor set up. I am pushing 400 hrs on this motor. The location has no electric power supply, batteries and inverters... Refrigerator and hot plate and other tools...

Like it a lot.

Was not sure to purchase a Chinese clone but took the plunge, glad I did, it arrived promptly and well packed with all paper work and other bits.I wanted to test the electric start and tried to figure the wiring, hint....throw the manual away and use common sense. It starts up good and runs nice. Brought it to replace my 15 HP Briggs on a 72 Sears SS15 Garden tractor. Needed to re-drill mount holes and I eliminated the gas tank, switch dash and air filter cover. It does not have much of a charging circuit, about 3 amps enough to charge a battery with no lights running. I thought the valves were a little noisy but I checked them and they were OK, I think the slight clatter is coming from the recoil throw out fingers (only at idle) Does not hold much oil, about a quart, I used 10/30 full syn. Will I buy again....Sure, at this price it is a good deal for a reasonable HP Honda clone.

Excellent Motor for the price

I purchased this motor to replace a 10hp Robin Subaru engine on a small sand rail. The motor performs excellent though I believe it is over rated for hp. I would say a more accurate hp rating would be 15hp max. Starts with a click of the key every time and does have decent torque. The price cannot be beat.
Yes, I would buy this engine again.

Good engine

We received the engine in a timely matter but when we received it there was no key or manual. It took over a week and numerous calls and emails to get someone to send a key and manual out. The engine works great for what it was purchased for but we were slightly upset that all the materials were not sent in the original box.