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Aceup Energy

Aceup Energy Gas Engine Vertical Shaft, 4.4HP 173cc 4-Stroke OHV Gas Motor with Primer for Lawn Mower, EPA Compliant

  • Based on 125 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
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Arrives Tuesday, Sep 15
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Style: 173cc gas engine with primer


Features

  • Shaft 7/8" diameter ,3.16" long, end tapped with 3/8"- 24 UNF; Keyway 3/16"
  • Small gas engine motor with recoil start, enrichment pump drive with primer; Press red primer 3-5 times for first start or normal cold start, no pressing for hot engine restart
  • Max torque 8.5 N.m/ 2500 RPM, Max load speed from 2500 to 2800 RPM, Max 4.4 HP 3600 RPM; 4 stroke air cooled OHV with recoil start, 0.9 gallon fuel tank
  • Equipped with metal cams, forged crankshafts and cast iron cylinder liners to ensure superior performance and longer service life
  • All enignes EPA compliant are functionally tested before leaving the factory to guarantee quality; Backed by 1-year limited warranty under normal use and FREE lifetime technical guidance from experts

Description

This enrichment pump drive with primer for lawn mower, 4 stroke 4.4HP gas engine vertical shaft. The engine is equipped with metal camshaft, forged crankshafts and cast iron cylinder liners to ensure superior performance and longer using life. Gasoline class #87 or up is preferred. Shaft 7/8" diameter Shaft long 3.16" Keyway 3/16" Built-in forced air cooling system and ventilated heat sinks keep the engine cool, providing high reliability and durability. For instructions on operating the engine, please refer to the product video; If have any questions, please feel free to tell us. Our products have been successfully marketed to Europe, North America and other countries with certifications of CE, EMC, EU-V, NOISE, GS, EPA, CARB and CSA. We have established a reliable and steady relationship with the global top brands. Meanwhile we have been developing our own brand with a reputation for its high quality, competitive price. Portable Gas-Powered Generator 3400 PSI 2.6 GPM With Wheel Kit Portable Gas-Powered Generator

Product Dimensions: 12 x 11.8 x 9 inches


Item Weight: 18.1 pounds


Manufacturer: Aceup Energy


Item model number: AE170V


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 15

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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Top Amazon Reviews

    • Great little engine!
The engine starts on the first pull and runs great. Excellent price, so I'm tickled to death. Was it a direct bolt-on for the 125cc Briggs? No, but it didn't claim to be. I had to drill one hole in my mower deck. My blade adaptor fit the output shaft perfectly. Yours may not. If I had any complaints, it would be that the specifications are not detailed enough. You get a lot of information, but none of the really technical stuff. But that's pretty much with everything these days. ... show more
Reviewed in the United States on June 13, 2026 by Mark L. Hyatt
    • Great lawnmower motor replacement
So far me and my dad used it to cut the front and back yard it works well and was easy to pull start i may buy more i been happy so far with how well it has worked and was easy to mount to the yardmax lawnmower frame we have we just need to make 1 motor bolt mount the other 2 match the motor.
Reviewed in the United States on May 14, 2026 by Josue Fernandez
    • Cheap solution
Has an unusual bolt pattern, but starts easy and runs pretty good. It's a cheap price and I'm going on my second summer using it as backup mower.
Reviewed in the United States on March 13, 2026 by Katie Fant Gibson
    • Very short life. I would not buy this motor again.
Initially, the only issue I had with this motor was the mounting bolts were not tapped. I added oil and gas and it ran great. Started first pull. I was delighted. It did spit out some oil even though the dipstick showed the oil level was correct. Tightening the dipstick tube did not help. The next week, I used it and I noticed that it leaked from the carburetor - I'm guessing the float was sticking. Thankfully, I had installed a petcock so I simply shut the gas off when I was finished and this seemed to work - the carb fills at the same rate the engine consumes fuel. Today I was using it again, a mere two weeks after firing it up for the first time and all was well for about an hour. Then the engine only seemed to want to run just above idle. But it was working. I figured I'd check into it after I was finished. However, about a half an hour later, the engine started making some sputtering noises and then shut off. I tried to restart it and the motor feels like it's low on compression. I'm not investing any more time in this, it's going to the scrap yard. I would not buy this motor again. ... show more
Reviewed in the United States on August 26, 2025 by That Guy!
    • Surprisingly great service.
I am very impressed with Aceup’s customer service team. I had what I thought was a problem with the small engine I had ordered. I called the company and a real person answered. An email was sent, along with links to two videos, which helped me better understand what the issue was. Their follow up and support is truly unique in this era of automated service and lack of follow up. The engine rubs great by the way. ... show more
Reviewed in the United States on August 25, 2026 by John
    • Aceup DV274 Replacement Engine
First, the DV174 that was purchased to replace a lawnmower engine work well until the coil failed. Have been waiting ten days for a reply. Secondly, the valve cover is GLUED ON instead of with a gasket, and I cannot remove without bending the cover. Again, no reply from Aceup. Figure the motor is two months old; wonder what else is wrong. Not happy. ... show more
Reviewed in the United States on July 24, 2026 by Mule
    • Very happy with this motor
Love this motor. Was cheaper than getting a whole new lawnmower. Has predrilled holes and others available to drill out, depending on what you're putting it on. Very powerful and easy to start. Very happy with it.
Reviewed in the United States on June 5, 2026 by brian dunda
    • GREAT LITTLE MOTOR @ REASONABLE PRICE
Used this to replace a briggs&Stratton 550 140cc engine. On a troy built push mower EVERYTHING WAS DIRECT BOLT ON. Reused motor mount bolts,shaft bolt and plate along with blade mount. Only thing that needed done was i tapped the bolt holes for the engine. My test run was in the rain cutting 2.5" wet grass, Engine didnt even try to die. Obviously the discharge got clogged but acted like a mulch plug. ... show more
Reviewed in the United States on April 15, 2026 by Dillon

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