Aceup Energy  18HP 459cc Gas Engine Horizontal Shaft, 4 Stroke OHV Gas Motor with Electric Start, Shaft 1" (25.4mm) Diameter, 3.48" Long, 1/4" Keyway
Aceup Energy  18HP 459cc Gas Engine Horizontal Shaft, 4 Stroke OHV Gas Motor with Electric Start, Shaft 1" (25.4mm) Diameter, 3.48" Long, 1/4" Keyway
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Aceup Energy 18HP 459cc Gas Engine Horizontal Shaft, 4 Stroke OHV Gas Motor with Electric Start, Shaft 1" (25.4mm) Diameter, 3.48" Long, 1/4" Keyway

Key item features

  • Powerful Engine: 18HP 459cc gas engine with 3600RPM for reliable power in various applications.
  • Durable Construction: Features forged crankshafts and cast iron cylinder liners for superior performance and longevity.
  • Convenient Start: Equipped with both recoil and electric start options for easy operation.
  • Fuel Capacity: 1.7 gallon fuel tank ensures extended run time without frequent refueling.
  • Safety Features: Includes a low oil sensor to prevent engine damage and ensure safe operation.
  • Versatile Use: Suitable for commercial, residential, and camping applications, including compressors, trenchers, pressure washers, and cement mixers.
  • Quality Assurance: All engines are factory tested and EPA compliant, ensuring high standards of quality and performance.
  • Compact Dimensions: Measures 20.86"L x 19.5"W x 19.5"H, making it easy to fit in various setups.
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Current price is Now $328.99
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3.9686411149825784 stars out of 5, based on 287 seller reviews(4.0)
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4 out of 5 stars
stars130 ratings53 reviews
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Pros

  • : Offers great value at a lower cost.
  • : Provides sufficient power for efficient operations.
  • : Compatible with original bolt pattern.
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Showing 1-3 of 53 reviews

May 11, 2026
James
Item details
Size: 459cc gas Engine
Sold byAceup EnergyDelivered byWalmart
5 out of 5 stars review

Verified Purchase

A top of the line engine that anyone can afford.

This is the absolute BEST value for your money, hands down. I buy a lot of motors and this one is a beast! It's hard to find such a small motor than can push a 6 gallon per minute, 3600 psi pressure washing pump without spending over $1000. I've been using this engine on my commercial accounts and to be honest, I can't see myself buying any other brand now! Through the years, I've stuck with Briggs and Stratton's 18hp engine to run my pressure washers and then I tried Harbor Freight's 16 hp Predator and it was ok but would really strain with this size pump. I then tried the Duramax 18 hp and it is the loudest one of them all but it does ok too for this pump size. But this Aceup 18 hp is perfect! It's small footprint lets me mount it on a 48" x 40" trailer from Northern Tool with a 42 gallon reserve tank and two 10 gallon chemical tanks, two reels and a stainless steel chemical valve manifold. I would HIGHLY recommend this motor to anyone needing serious power in a small package. In fact, I'm going to order two more for another pressure washing trailer I'm building on a 4' x 6' trailer for two operators. The performance and power level is off the charts and the ease of installation will make you laugh. Let's keep this company in business!

Helpful?6FTS0CG8WTT48521723618
Dec 26, 2025
ROBERT
Item details
Size: 459cc gas Engine
Sold byAceup EnergyDelivered byWalmart
5 out of 5 stars review

Verified Purchase

good engine add oil and starts right up every time definatly stronger than my gx 390 was can tell there are a few more horses.....would love to know what the coil output is though for elctrical sy7stem and if coda parts will fit to enlarge charging system...

Helpful?6FTS0CG8WTT48521723618
Mar 30, 2026
David
Walmart Associate
Item details
Size: 212cc gas Engine
Sold byAceup EnergyDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Great Replacement Motor

Rescued a barn find Craftsman RotoTiller. Replaced the original 5hp Briggs %26 Stratton, way cheaper to swap this out than to find all the parts needed to rebuild the B%26S. Was very easy to install, mounting bolts lined up perfectly on the tiller, no drilling. But I had to slightly modify the belt shroud housing and it's front mount support. The crank shaft on this motor is longer, so I had to drill a hole in the shroud for it to fit. And the support bracket for it had to be repositioned as it didn't line up with the case bolts as it does on the B%26S motor. I did used the extra, pre drilled holes on this motor, only needed a slightly longer 8.8 bolt for that. This motor is a beast, it started first pull and runs perfectly. Has more power that I expected, I actually need to run it 3/4 throttle, or this tiller will get away from me real quick. Saved, what was described as a piece of junk from the scrap pile. For less than $200, (this motor, 2 tires and some paint) and I've got a beast of a tiller. I would buy this motor again and recommend this small engine for like projects.

Helpful?6FTS0CG8WTT48521723618