Every engine is completely disassembled, thoroughly cleaned, precision machined to OEM specifications, expertly reassembled, and *dyno-tested before it ships.
Every engine is stripped to the bare block. Every component is cleaned, inspected, measured, and evaluated — nothing is reused without meeting our standards.
02
FACTORY TOLERANCES
Every surface is machined back to OEM specs — not just cleaned up.
03
EXPERT ASSEMBLY
Engines are assembled with new bearings, pistons, rings, seals, gaskets, and other major components to restore like-new performance.
04
DYNO-TESTED
Run two hours under load on our dyno — proven before it ships, not after.
$448–$760/day
*ESTIMATED COST OF UNPLANNED DOWNTIME
The clock is running the moment your engine goes down.
Our job is to help you identify the right engine path quickly, quote it clearly, and keep the process moving.
Speak with a diesel expert
ENGINE FINDER
Get a Fast Quote on Your Remanufactured Diesel Engine
Share your Engine Serial Number (ESN), VIN, or engine model, and our team will identify the right solution for your application. Whether you need an in-stock remanufactured engine, a complete engine replacement, or a repair, we’ll provide a clear quote within one business day.
We confirm what engines you have and what happened.
We check inventory, sourcing, or rebuilding timelines for your block.
You get a clear quote with financing and warranty options attached.
THREE WAYS WE HELP
Which Situation Are You In?
Every down engine is a little different. Here’s how DPG solves the three most common situations we see.
Option 01
I Need an Engine, Fast
Stock Remanufactured Diesel Engines
In-stock CAT, Cummins, Detroit, International, Mack, and John Deere reman engines — dyno-tested before they ship, ready nationwide or pickup at our Indiana facility.
What happens next: Send us your engine serial number. We confirm stock, quote, and arrange pickup or freight the same day.
Option 02
I Want DPG to Do the Work
Customer Engine Remanufacturing & Engine Swaps
In-stock CAT, Cummins, Detroit, International, Mack, and John Deere reman engines — dyno-tested before they ship, ready nationwide or pickup at our Indiana facility.
What happens next: Send us your engine serial number. We confirm stock, quote, and arrange pickup or freight the same day.
Option 03
I Need an In-Chassis Repair
Diesel Engine In-Frame Overhaul
In-stock CAT, Cummins, Detroit, International, Mack, and John Deere reman engines — dyno-tested before they ship, ready nationwide or pickup at our Indiana facility.
What happens next: Send us your engine serial number. We confirm stock, quote, and arrange pickup or freight the same day.
USED VS. REBUILT VS. REMANUFACTURED
A REMAN ENGINE ISN'T A USED ENGINE OR A PATCHED-UP ONE.
Every remanufactured diesel engine is machined to OEM tolerances, assembled by our Indiana team, and dyno-tested before it ships.
Comparison
Used Engine
Rebuilt Engine
DPG Reman Engine
Condition
Pulled from another vehicle, little to no reconditioning
Only damaged/worn parts repaired
Fully torn down, machined, and restored to OEM spec
History
Unknown history and remaining life
Varies by shop and scope
Every critical component measured and inspected
Cost
Lowest upfront, highest risk
Moderate, reliability varies
A fraction of new-engine cost - same power, same output
Testing
Typically none
May or may not be tested
Every engine dyno-tested before it ships
Turnaround
Immediate, as-is
Varies by shop backlog
Ships in 3-5 days, not months
Fit
Not matched to your specs
Depends on shop's work
Drops into your truck - matched to your mounts & specs
Warranty
Limited or none
Varies by shop
2-year warranty standard - parts, labor & performance
Sustainability
Reuses your core - less waste, lower cost to you
Remanufactured Diesel Engines From Every Major Manufacturer
We remanufacture and stock diesel engines from every major manufacturer that runs North America’s fleets. Don’t see yours? We remanufacture to your exact make, model, and submodel, including many engines not listed here.
Our job is to help you identify the right engine path fast, quote it clearly and keep the process moving. Most in-stock engines ship within 1–3 business days. Because when your equipment stops, so does your business.
SUPPORT & WARRANTY
Real help and a plan you can afford.
Live Diesel Support
Speak with a live diesel expert anytime.
Engine, transmission, or differential issue – our team helps you find the right solution fast.
Since 1981, Diesel Power Group has been a family-driven company built on trust, quality, and a commitment to our customers. Over the years, our team has accumulated more than 100 years of combined experience remanufacturing diesel engines and powertrain systems.
Operating from our 65,000-square-foot facility in Pierceton, Indiana, we offer six dedicated service bays, an in-house machine shop, engine and chassis dyno testing, and a large inventory of ready-to-ship remanufactured engines and components. Whether you operate a single truck or an entire fleet, we’re equipped to keep your equipment moving.