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DuroMax

DuroMax XP20HP 500cc 1-Inch Shaft Recoil Start Gas Powered Engine, Blue

  • Based on 1,058 reviews
Condition: New
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Availability: Only 8 left in stock, order soon!
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Arrives Thursday, Aug 28
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Style: 500cc Gas


Features

  • 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

Description

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.

Brand: DuroMax


Fuel Type: Gasoline


Power Source: gas_powered


Recommended Uses For Product: Residential


Item Weight: 75 Pounds


Output Wattage: 1491 Watts


Special Feature: Dual Fuel


Included Components: DuroMax XP20HP Engine, Spark Plug Wrench, Oil Funnel, and Owner’s Manual


Color: Blue


Model Name: DuroMax XP20HP 500cc 1-Inch Shaft


Brand: DuroMax


Fuel Type: Gasoline


Power Source: gas_powered


Recommended Uses For Product: Residential


Item Weight: 75 Pounds


Output Wattage: 1491 Watts


Special Feature: Dual Fuel


Included Components: DuroMax XP20HP Engine, Spark Plug Wrench, Oil Funnel, and Owner’s Manual


Color: Blue


Model Name: DuroMax XP20HP 500cc 1-Inch Shaft


Engine Type: 4 Stroke


Ignition System Type: Magneto


Engine Displacement: 500 Cubic Centimeters


Runtime: 2 hours


Frequency: 50 Hz


Is Electric: No


UPC: 811640016869


Manufacturer: DuroMax


Global Trade Identification Number: 69


Product Dimensions: 18.99 x 17 x 19 inches


Item Weight: 75 pounds


Country of Origin: China


Item model number: XP20HP


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 28

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Starts very easily and works just fine on 27 ton log splitter
Style: 208cc Gas Electric Start
Ran my 27 ton Woods log splitter with no issues; splitting some very tough, large, forked logs. I'm curious how well it starts in cold weather. Got this to replace a Koehler motor of the same approximate size after, it had seized. I never liked that motor. It was difficult to pull start, and refused to start when the temps dropped to around freezing. This new motor fit like a glove, and started very easily with this small battery: https://www.amazon.com/dp/B00K537MGC?ref=ppx_yo2ov_dt_b_product_details&th=1 ... show more
Reviewed in the United States on April 15, 2024 by CALEB
    • 15 months and still going strong
Style: 208cc Gas Electric Start
I had my doubts about this engine being such a good price point but it pleasantly surprised me! I purchased this motor for my sons go kart along with a torque converter kit and it works great. Tons of low end torque for hills but still has good top end. The electric start switch did give me a little bit of a problem but i installed a remote push to start switch that fixed that. The engine puts out plenty of charging power as well. It keeps the starting battery charged and we run 5 LED offroad lights no problem. I was worried that the motor my not be able to handle the bumps of off roading, especially since my sons go kart has the motor mounted on the moving portion of the rear swing arm/suspension, but it runs strong regardless of terrain. It has even be rolled a few times, but we flip it over and it fires right back up with a few puffs of smoke. This motor has given me the confidence to try other things from Duromax. I am look at their generators. If they are anywhere near as durable as this engine, I will be happy. And again, if you want to use this for a go kart, get the torque converter. You wont regret it. ... show more
Reviewed in the United States on December 3, 2022 by ajwashere
    • Very good so far
Style: 420cc Gas Electric Start
I purchased this engine as a replacement for a Briggs 12 hp V-twin. The $329 price tag was the deciding factor - that's about half the cost of the Briggs short block. The engine is mounted on a BCS 30" roto tiller. All of the mounting was ready-to-go right out of the box. The clutch slid on the keyed shaft, and the retaining bolt turned right into the 3/8 - 24 tapped hole. It was only about an hour from opening the box until I was ready to go. After reading the other reviews, I was concerned about the starter connections, and also about building a battery box. Neither was an issue, as the engine is very easy to start and I haven't felt any need to use the electric starter or connect a battery. A brief examination, however, makes it clear that the only connection necessary is the battery cables - shouldn't be a problem. My tiller has a "dead man" switch that kills the engine if the machine gets away for some reason. Using the schematic, I was easily able to figure out how to connect the kill switch. The only difficulty I encountered is that I wasn't able to connect the throttle cable from the tiller control handlebar. That hasn't been a big problem - I merely set the engine rpm before I start work, and it goes fine. The engine is a piece of cake to start - it has started on the first pull every time. It does require a fairly stout tug on the cord, usually a "two handed" tug. It seems louder than the Briggs, but I don't have any way to measure decibels, and if louder, it's by just a little. It runs very smoothly, with no surging or "hunting", and fuel consumption seems reasonable - but, without a meter to count hours of operation, my opinion of fuel consumption is quite subjective. Without a dynomometer, there isn't a way for me to measure actual horsepower output, but there is no doubt is has a bit more zip than the old Briggs. As of this writing, I have used the engine for about 20 hours without any problem whatsoever. My own measure of engines like this one includes longevity, so I might be back to edit this if the engine doesn't give me a few years of good service. At this point, I don't hesitate to recommend it. ... show more
Reviewed in the United States on May 30, 2016 by Captain Eddie
    • Great motor but I received a damaged unit
Style: 208cc Gas Electric Start
Review Image by Brookman84 Brookman84
Review Image by Brookman84 Brookman84
Review Image by Brookman84 Brookman84
Review Image by Brookman84 Brookman84
Review Image by Brookman84 Brookman84
Review Image by Brookman84 Brookman84
Review Image by Brookman84 Brookman84
Review Image by Brookman84 Brookman84
It runs good it works well for my needs. I installed it in a little mini bike that only came with a 96cc engine. When I received this engine the box didn't have any damage but I did receive a damaged engine. As you can see in pictures 4,5,6 the ignition box was bent and the backside casing was broken. For my install the switch and breaker got moved to a side plate on the minibike so that didn't effect me. I included a picture of it installed in my mini bike with the gearing I have I am able to get it up to around 50mph without no modifications to the engine. So, this is a great engine for a mini bike. ... show more
Reviewed in the United States on June 22, 2022 by Brookman84 Brookman84
    • Great motor
Style: 208cc Gas Electric Start
Was a direct swap into a yerf dog that had a crapped out predator 212. Everything bolted right on including the throttle linkage. Just unbolted and extended the wiring for the keyed electric start module that was on the side of the motor and now have a much easier to use and therefore more fun kart. Starts good with a cheap 12v battery I mounted on the rack in a box. Make sure you have a good ground to chassis! Plenty of power, feels like at least what was advertised. Nice exhaust note too, not too loud ... show more
Reviewed in the United States on August 12, 2024 by Blake
    • I'm using this on my McLane edging machine. It's so easy to start!
Style: 208cc Gas Electric Start
That puny little 3hp engine on the edger is way too weak. This DuroMax is more than powerful enough. I got the electric start version because of how much trouble it was to start the old engine but this DuroMax is so easy to start, I haven't even used the electric start beyond testing to verify it worked. If you're wondering if this is a direct fit to the edger, it's not. But it's really easy to make it work. All I had to do was flip the two metal brackets that the engine mounts to, and since I wanted the blade to spin faster, I used a larger pulley on the engine. You might be able to get by using the stock parts with only a belt length change (since moving the engine up a little bit will change the distance between the pulleys. Actually, you'll probably need a new pulley anyway because the shaft might be larger on this engine. But this DuroMax is powerful enough to edge nearly at idle, so it's so much quieter, and it doesn't stall anymore because it has so much more torque. I've been using it for over 2 years, and I love it! ... show more
Reviewed in the United States on April 1, 2021 by FluorescentPinkMango

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