Will it fit my existing 420cc engine mounts?

It uses the common 420cc horizontal-shaft footprint with a 1-inch shaft, 3.48-inch length and 1/4-inch keyway, so it usually bolts to the same plate. Check your mounting hole spacing and shaft height before ordering.

Does it have electric start and a battery?

It has electric start with a recoil backup. The battery and wiring are not part of the engine, so you supply them.

What is the shaft size?

A 1-inch diameter horizontal shaft, 3.48 inches long, with a 1/4-inch keyway.

Yes, it is EPA-compliant and comes with a 1-year limited warranty and lifetime technical guidance.

Can I use it on a go-kart or pressure washer?

Yes, if the machine takes a 1-inch keyed horizontal shaft and the mounting plate matches. Check pulley or clutch fit and clearance first.

Does it charge a battery while running?

The base engine has no charging coil listed, so it will not recharge a battery on its own.

Aceup Energy 15HP 420cc 4-Stroke OHV Horizontal Shaft Gas Engine

Best price now

$329.99at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

Aceup Energy 15HP 420cc 4-Stroke OHV Horizontal Shaft Gas Engine

Best price now

$329.99at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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Price facts

Last seen at $329.99 at Walmart on Nov 12.

Our take on the Aceup Energy 15HP 420cc 4-Stroke OHV Horizontal Shaft Gas Engine

The Aceup Energy 420cc is a 15HP four-stroke OHV gas engine with a horizontal 1-inch shaft, electric start and a 3600 RPM governed speed. It is built like a general-purpose utility engine: cast iron cylinder liner, forged crankshaft, metal cam and a ball-bearing-supported crank, plus a low-oil sensor and EPA compliance. It suits replacing or powering a go-kart, pressure washer, log splitter, generator or pump where a 1-inch keyed shaft fits. Against the common 420cc clones it adds electric start and a low-oil shutdown, but it is a heavier, simpler engine without a fuel gauge or charging coil on the base unit.

Best forReplacing a worn 420cc engine on a kart, splitter or washerOwners who want push-button electric startUtility builds needing a 1-inch keyed horizontal shaft

Pros

Electric start plus recoil backup
Cast iron cylinder liner and forged crankshaft
Ball-bearing crank support for steadier running
Low-oil sensor shuts the engine down before damage
EPA-compliant with a 1-year limited warranty

Cons

Heavy for one person to lift and mount
No charging coil or fuel gauge on the base engine
Vibration and noise typical of a big single-cylinder
Carburetor may need tuning after install

Aceup Energy 15HP 420cc 4-Stroke OHV Horizontal Shaft Gas Engine prices at every store

WalmartNew
In stockSold by Aceup EnergyReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$329.99Checked Nov 12
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What reviewers say

4.7 / 520 ratings

Buyers rate it highly and mostly report it starting easily and running strong for utility work. Complaints center on weight and on carburetor adjustment out of the box.

What people mention

StartingPraisedOwners say the electric start fires it up reliably, with the recoil as backup.
BuildPraisedBuyers point to the cast iron liner and forged crank as signs of durable construction.
WeightCriticisedSeveral say it is heavy and awkward to lift into a frame alone.
CarburetorMixedSome report needing to adjust the carburetor before it ran cleanly.
NoiseCriticisedIt is loud under load, as expected from a large single-cylinder engine.

About the Aceup Energy 15HP 420cc 4-Stroke OHV Horizontal Shaft Gas Engine

This is a 15HP, 420cc, 4-stroke OHV gas engine with a horizontal shaft. It has electric start and runs at 3600 RPM. The shaft size suits a range of applications.

The engine has metal cams, a forged crankshaft and cast iron cylinder liners. The crankshaft is supported by ball bearings. A low oil sensor protects the engine. It is EPA-compliant.

Brand: Aceup Energy
Power: 15HP
Displacement: 420cc
Engine type: 4-stroke, OHV, gas
Shaft type: Horizontal
Shaft diameter: 1 inch
Shaft length: 3.48 inches
Keyway: 1/4 inch
Speed: 3600 RPM
Start: Electric start
Construction: Metal cams, forged crankshaft, cast iron cylinder liners, ball bearing supported crankshaft
Protection: Low oil sensor
Compliance: EPA-compliant
Warranty: 1-year limited warranty
Support: Lifetime technical guidance

Specifications

color: YellowSource
size: 420cc gas EngineSource

Questions and answers

Will it fit my existing 420cc engine mounts?: It uses the common 420cc horizontal-shaft footprint with a 1-inch shaft, 3.48-inch length and 1/4-inch keyway, so it usually bolts to the same plate. Check your mounting hole spacing and shaft height before ordering.
Does it have electric start and a battery?: It has electric start with a recoil backup. The battery and wiring are not part of the engine, so you supply them.
What is the shaft size?: A 1-inch diameter horizontal shaft, 3.48 inches long, with a 1/4-inch keyway.
Is it EPA compliant?: Yes, it is EPA-compliant and comes with a 1-year limited warranty and lifetime technical guidance.
Can I use it on a go-kart or pressure washer?: Yes, if the machine takes a 1-inch keyed horizontal shaft and the mounting plate matches. Check pulley or clutch fit and clearance first.
Does it charge a battery while running?: The base engine has no charging coil listed, so it will not recharge a battery on its own.
Where is the Aceup Energy 15HP 420cc 4-Stroke OHV Horizontal Shaft Gas Engine cheapest?: At Walmart, for $329.99, as of our latest check.
What do buyers say about the Aceup Energy 15HP 420cc 4-Stroke OHV Horizontal Shaft Gas Engine?: Rated 4.7 out of 5 from 20 ratings.