Why Buy Diesel Industrial Engines

Industrial Engines

Choate Engineering Performance Remanufactured Industrial Engines and Cylinder Heads

  • Made for Komatsu, Kawasaki, XCMG, Dressta, and Hyundai Machines
  • Factory Weaknesses Engineered Out and Eliminated
  • Dash Series, Spec Code, or ESN-Matched for a Drop-In Install
INDUSTRIAL-GRADE
RELIABLE
PRECISION-BUILT

Reliable Remanufactured Power

No patch jobs here. Choate remanufactured industrial engines deliver relentless, high-quality power to keep pushing dirt, rock, and profits.

Made for Leading Industrial Machines

Precisely matched to your excavator, loader, or dozer's dash designation, equipment model number, or machine/engine serial number for a bolt-in match and flawless operation.

Factory Flaws Eliminated

Factory weaknesses like balance or thermal issues, coolant leaks, and cylinder wash are corrected for engines that are tougher than stock.

Improved Cylinder Heads

Upgraded, in-house machined cylinder heads are magnafluxed and pressure-tested to ensure they are crack- and leak-free, and reengineered, blueprinted valve seats improve airflow.

Avoid Costly Downtime

Down machines cost money. We have the inventory to keep your fleet on the job site and out of the shop.

Engine Dressing Experts

We know the unique layout of heavy machinery engines. We'll walk you through the configuration of your oil pans, flywheel housings, turbo mountings, and more.

FAQs

What model is my machine's engine?

The configuration of your engine's external components - like flywheel housings, oil pans, and turbo mountings - will vary widely depending on the generation of your engine. It's important that we get all the info we can from your old engine (and your machine) to be certain your remanufactured unit will be a 100% bolt-in match. Look for your:

  • Equipment Model Number: Listed on the machine operator cab or frame (e.g., PC210LC-11, WA320-6).
  • Machine Serial Number: Stamped on the main metal data plate attached to the machine chassis.
  • Engine Serial Number (ESN): Located on the engine data plate on top of the valve cover or gear housing side.

Then research your engine online to learn your engine model, family identification, generation, build specs and more. Having trouble finding your data plate? Reach out to our technical sales team at 901-352-0639 and they'll guide you to it.

A note on the popular Komatsu SAA6D107E: When it comes to this engine, knowing your 'Dash' number is critical. Each generation features different turbochargers, electronics, and exhaust after-treatment systems.

Engine ModelEmission TierExhaust SystemTurbo Type
SAA6D107E-1Tier 3Straight / Muffler (No DPF)Standard Wastegate
SAA6D107E-2Tier 4 InterimKDPF (Soot Filter)Variable (KVGT)
SAA6D107E-3Tier 4 FinalKDPF + SCR (Requires DEF)Variable (KVGT)

Additionally, if your machine appears on the list below, the Choate Komatsu SAA6D107E engine will fit it:

-1 SAA6D107E-1 -2 SAA6D107E-2 -3 SAA6D107E-3

Excavators

PC200-8, PC210-8, PC220-8-1
PC228US-8, PC240LC-8, PC270LC-8-1
PC210LC-10, PC240LC-10, PC290LC-10-2
PW180-10, PW200-10, PW220-10-2
HB215LC-2 (Hybrid)-2
PC210LC-11, PC240LC-11, PC290LC-11-3
PC210LCi-11, PC228USLC-11-3

Wheel Loaders

WA200-6, WA250-6, WA270-6-1
WA320-6, WA380-6-1
WA270-7, WA320-7, WA380-7-2
WA270-8, WA320-8-3

Dozers / Specialty

D51EX/PX-22, D61EX/PX-15E0-1
D61EX-23, D61PX-23-2
D51EX/PX-24, D61EX/PX-24-3
BR380JG-1 (Mobile Crusher)-1

How do I find my engine's model, serial, or dash number?

Both your machine and your engine have a data plate with pertinent information. Here's a general guide to where you can find your engine's tag:

For a Komatsu engine dash number (e.g., -1, -2, or -3), check the Engine Data Plate - usually located on the top rocker cover or the side of the gear housing.
On most Dressta engines, the data plate is attached to the front of the engine on the left-hand side (when viewing the engine from the front). You'll have to open the engine compartment hood to access this area.
On Kawasaki engines check the primary metal engine identification plate, typically riveted directly to the side of the engine block crankcase, the valve cover, or the front timing gear cover. The data plate lists the primary Engine Model along with a specific Spec Code or CGO/Design Code (e.g., 6BTA5.9, QSB5.9, or QSC8.3) that details the exact component layout, fuel system, and emissions configuration built for that loader model. If the physical data plate is damaged or missing, the base engine serial number (ESN) is also permanently stamped directly into the machined metal surface of the engine block near the oil filter header or rear cylinder corner.
On Xuzhou Construction Machinery Group (XCMG) engines, you will see standard third-party names (e.g., a Cummins QSB6.7) and can use those respective serial numbers. You can usually find them stamped onto a riveted metal plate mounted somewhere on the frame of the machine.
For Hyundai engines, there are a few possibilities: Check the valve/rocker cover - this is the most common data plate location. It's usually a metal tag or a durable, heat-resistant sticker stuck to the top or side of the valve cover. Next, check the sides of the engine block near the fuel injection pump or water pump. Lastly, try the front timing gear cover or housing wrapper.

If you're missing your engine data plate tag, provide your machine serial number to our team and we'll help verify the build for you.

What commonly causes industrial engines to fail?

Excessive heat is the primary killer of these heavy-duty engines. Continuous high-load, low RPM operation paired with a harsh operating environment will take a toll, and it's common for job site debris, leaking hoses, or degraded coolant to compromise cooling systems, adding to the overheating problem.

Even the briefest overheating events under heavy loads will warp cylinder heads, blow head gaskets, and crack engine blocks. The best way to combat failure is to invest in an engine built to withstand these heavy-duty, grueling demands - enter the Choate Engineering solution!

Give us a call if you have questions on a particular failure cause or error code, and check out our comprehensive technical guide to diagnosing the most common codes you'll see from the Komatsu SAA6D107E engine series here.

Can I customize my industrial engine?

Our remanufactured long blocks feature CNC blueprinting, precision balancing, and upgraded internals to outlast OEM replacements. Looking for further customizations? Explore your options on each engine product page.