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Swapping a dead engine in your UTV, Gator, or Mule is a big job, and the real fear is bolting in a “new” motor that turns out to be a dud or a poor fit. The good news: the 3-cylinder Chery SQR372 platform (a small, reliable engine design used across many utility vehicles) powers a huge range of machines, so drop-in replacements exist that fire right up and run for hundreds of hours. Here is what to know about the genuine Chery and compatible options, the oil-pan catch, and which one deserves your money.
I’m Min — the founder and writer behind Gadgets Feed. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
You need a dependable motor that actually fits your machine the first time, so here is the honest rundown of the best 3 cylinder engine options for Gators, Mules, and sand rails.
Our Picks at a Glance
How To Choose The Best 3 Cylinder Engine
Choosing a replacement engine is about matching two things: the physical mounting points and the electronics. The Chery SQR372 3-cylinder is popular because it fits a wide range of John Deere Gators and Kawasaki Mules, but not every version is identical. The most common difference buyers hit is the oil pan depth, which affects whether the engine hangs too low under the chassis.
Displacement and Configuration
The engines here are 812cc or 800cc, 3-cylinder, 4-stroke units. The 4-stroke design means it burns cleaner and runs quieter than a 2-stroke, and the 3-cylinder layout keeps it compact while still delivering smooth, usable torque for hauling and trail riding. The displacement difference between 800cc and 812cc is tiny, so focus your decision on fit and provenance rather than that small spec gap.
OEM vs. Compatible
You will find engines labeled as genuine Chery parts and others sold as compatible replacements. Genuine units tend to carry a premium and come with factory quality control, while compatible builds are usually cheaper and still work well but may have small differences. The catch across nearly all of them is the oil pan and pickup tube — most buyers end up reusing the ones from their old engine to get a perfect fit.
Quick Comparison
| Model | Best For | Displacement | Fitment | Weight | Amazon |
|---|---|---|---|---|---|
| Chery SQR372 812cc★ Best Overall | Broad UTV and Gator coverage | 812CC | John Deere, Kawasaki, Arctic Cat | 143.7 lbs | Amazon |
| Saito FG-19R3 Radial | RC aircraft enthusiasts | — | Model airplanes | 1 kg | Amazon |
| Gasoline Motor Assy 800CC | Budget-conscious Gator owners | 800CC | John Deere 825i, 835E, 835M | — | Amazon |
| OEM Chery SQR372 | Genuine OEM confidence | 812CC | John Deere 825i, 835E, 835M | — | Amazon |
In-depth Reviews
1. Chery Genuine Gas Engine SQR372 812cc
Our pick — over 4★ from 30+ verified ratings; the strongest balance of quality and price.
The proven workhorse that keeps Gators and Mules running for years.
The headline spec here is the 812cc, 3-cylinder, 4-stroke layout, and what it buys you is dependable torque for hauling and trail work. It is a direct replacement from Chery, and the application list is the widest of the group: John Deere 825I, 835E, 835M, 835R Gators, Kawasaki Mule Pro FX/FXT/FXR, plus Arctic Cat Prowler, Textron, Tracker, and several sand-rail brands. The package even includes the manifold gaskets, so you are not hunting for extras on day one.
Performance wins people over here — it is the most-praised trait by a wide margin. Owners describe engines that start right up with no issues, run great, and fit well, with several reporting flawless running past 250+ hours in a 2015 Mule Pro. The recurring note across reviews is the deeper oil pan: some swap in the old pan for a perfect fit, and on Mules the deeper pan can sit low enough to block the skid plate until you trim it.
At 143.7 pounds, this is a real piece of machinery to handle, and it ships in a wooden crate so the motor arrives protected. One thing to know: the same SQR372 part number appears on multiple listings from this brand, and this one carries the widest compatibility list, which is why it tops the guide.
What owners love
- Starts right up and runs great out of the crate
- Widest fitment list of any pick here
- Proven past 250+ hours of hard use
What to plan for
- Deeper oil pan may need swapping or a skid-plate trim
- Heavy at 143.7 lbs — plan your lifting setup
Grab this if: you want the broadest one-engine-fits-many option that owners have proven over hundreds of hours.
Mind this: the oil pan difference is almost guaranteed, so budget some shop time to swap it before installing.
2. Saito Engines FG-19R3 3-Cylinder Gas Radial
A tiny radial that brings a real 3-cylinder growl to model aircraft.
This is the odd one out in the group, but it is a genuine 3-cylinder engine — a radial made for large RC airplanes rather than UTVs. At just 1 kg and measuring 7.4 x 7.3 x 7 inches, it is dramatically smaller than the automotive units, which makes sense given its purpose. It is a science-focused outdoor hobby piece, and Saito recommends running Red Line or Power Model synthetic oil at a 16:1 to 20:1 mix ratio.
What makes this special is the sensory payoff: a radial 3-cylinder in a model plane sounds unlike any single or twin, with a deep, uneven burble that enthusiasts chase. The color is silver, it is made largely from plastic, and it is aimed at older kids and adults — listed for ages 14 and up. Reviews are sparse but perfect, with buyers simply recommending it without reservation.
If you are shopping for a Gator or Mule, this is not the engine for you — it lacks the displacement and mounting for vehicle use. But if you fly large-scale gas RC planes and want an authentic radial experience, this is the only true 3-cylinder option in the lineup.
Perfect for: RC aircraft builders who want a genuine radial 3-cylinder with that signature sound.
Not for: anyone repairing a UTV, Gator, or ATV — this is a model-engine, not a vehicle engine.
3. New Gasoline Engine Motor Assy 800CC
A fast-arriving budget swap that fires right up and idles smooth.
For Gator owners who want a no-frills replacement, this 800cc, 3-cylinder assembly is the value play. It is built for the John Deere 825i, 835E, 835M, and 835R Gators, plus some Kawasaki ATV models, and it includes the manifold gaskets in the box. The displacement is a hair below the 812cc units, but in real riding you will not feel the difference.
The experience reports are consistent: it arrives in about a week, bolts in easily, fires right up, and idles at a smooth 950rpm (revolutions per minute, the engine’s idle speed). One owner dropped it into a 2021 835R Gator and called it an exact replacement, while another fitted it to an 825m and said it “worked out great.” The two snags to expect are the deeper oil pan, which needs swapping or a skid-plate lower, and a plastic valve cover that may not fit some Gator models, so keep your old one handy.
Also worth noting: the included exhaust gasket is metal and one bolt hole can be off, so many owners simply reuse the old gasket rather than fight it. It is well-crated for shipping, which protects the motor in transit.
Best value: the cheapest way to get a running 800cc 3-cylinder in a Gator, with fast shipping and proven startup.
The trade-off: plan to reuse your old oil pan, valve cover, and exhaust gasket for the cleanest install.
4. OEM Chery Gas Engine Motor SQR372
The genuine Chery-built unit with a 1-year warranty and zero fitment complaints.
If provenance matters most, this is the one: it is OEM made by Chery, fully tested before shipping, and carries a 1-year warranty for free replacement of broken parts. It is the same 812cc, 3-cylinder, 4-stroke SQR372 design, sized for 2011-2017 John Deere 825i, 835E, 835M, 835R Gators, plus Chery QQ, Joyner Trooper, and a wide range of UTV and ATV models up to 2023.
Every single owner paints the same picture: perfect fitment on a 2013 825i, a direct replacement for a Mule FXT Pro that “runs like a new one again,” and a successful install into a 2023 835M Gator. The listing is upfront about the one expected difference — the oil pan and pickup tube may not match your machine, and the fix is to rebuild them or reuse the old parts. Buyers report the engine arrives well-packed and installs easily, with most only needing to swap the oil pan from their previous motor.
The only sour note in an otherwise flawless record is shipping: the listing advertises free shipping but international charges can appear at checkout. It is still a positive experience overall, just budget for that potential extra.
Why it earns the premium
- Genuine OEM Chery with factory testing
- 1-year warranty on parts
- Perfect fitment reported across every review
Watch for
- Oil pan and pickup tube likely need swapping
- International shipping fee may not be free despite the listing
Choose this for: confidence — genuine OEM (original equipment manufacturer, meaning factory-built) construction, a warranty, and a flawless fitment track record.
Expect to do: reuse your old oil pan and pickup tube, and confirm shipping costs before you commit.
Understanding the Specs
Displacement and Layout
Displacement, shown here as 812cc or 800cc, is the total volume of the cylinders and tells you roughly how much power the engine can make. The 3-cylinder, 4-stroke layout is the key spec — it is compact enough to fit tight UTV bays while delivering smooth, usable torque. The tiny gap between 812cc and 800cc will not change how your machine feels on the trail.
The Oil Pan Catch
Nearly every replacement engine in this category ships with a deeper oil pan than your factory unit. A deeper pan means the engine hangs lower, which can block your skid plate or ground clearance. The fix is simple and universally reported: keep your old oil pan and pickup tube, and swap them onto the new engine during installation for a perfect factory fit.
FAQ
Will a Chery SQR372 engine fit my John Deere Gator?
What is the difference between 800cc and 812cc versions?
Do I need to change the oil pan on a replacement engine?
What oil and mix ratio does the Saito FG-19R3 need?
Is the Saito FG-19R3 a real car engine?
How long will a 3-cylinder Chery replacement engine last?
Do these engines come with gaskets included?
What is the warranty on the OEM Chery engine?
Final Thoughts: The Verdict
The crowd favorite for a 3 cylinder engine is the Chery Genuine SQR372 because it pairs the widest compatibility list with proven long-term reliability. If you want the cheapest solid swap for a Gator, the 800CC compatible assembly (an 800 cubic centimeter engine, a common size for utility vehicles) fires right up and saves money. And for genuine OEM confidence with a warranty, the OEM Chery SQR372 is the one to reach for.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of August 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, Gadgets Feed earns from qualifying purchases. This does not affect which products we feature.