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Remanufactured Diesel Engines
Remanufactured Diesel Engines Built for the Long Haul
Fraser remanufactured diesel engines are torn down to the bare block, machined back to factory tolerances, rebuilt with new wear components, and tested for heavy-duty reliability before they ship — built to handle the loads diesels are made for, at a fraction of new-engine cost. Power Stroke, Cummins, Duramax and more, shipped nationwide and warranty-backed since 1961.
Speak with a specialist800-731-3177
27 locations nationwide
5-year warranty available
US-based service
Since 1961
Free Quote
Request Diesel Engine Pricing
Fast response from a US-based powertrain expert.
[wpforms id="146256"]The Fundamentals
What is a remanufactured diesel engine?
A remanufactured diesel engine is a diesel engine that has been completely disassembled, cleaned, measured, and restored to the manufacturer's original specifications. Every critical surface is inspected and machined, and all standard wear items — bearings, seals, gaskets, rings, and more — are replaced with new parts. It is the most thorough way to return a diesel to like-new condition without the price of a brand-new crate engine.
This matters even more on a diesel. Diesels run high compression and heavy loads, so worn tolerances and tired components fail hard and fail expensive. A used or "junkyard" diesel comes with an unknown history and unknown remaining life. A remanufactured diesel engine starts from a known baseline: factory tolerances, verified clearances, and fresh components throughout — new-engine dependability for far less than a new crate diesel.
Why Fraser Is Superior
The Fraser remanufacturing process
Superior diesels come from a disciplined process, not shortcuts. Every Fraser diesel engine moves through the same controlled build sequence — and the order matters. Each stage depends on the one before it, which is how we deliver consistent, repeatable quality built to survive heavy-duty service.
Step 01
Complete teardown & cleaning
The core is fully disassembled to the bare block. Heavy diesel soot, carbon, and oil are removed through industrial cleaning so every surface can be inspected honestly — no hidden cracks, no hidden wear, no guesswork.
Step 02
Inspection, pressure-check & measurement
Each component is gauged against factory specification, and diesel blocks and heads are checked for the cracks that high cylinder pressures expose. Parts outside tolerance are machined back to spec or rejected outright. Marginal parts don't make it into a Fraser diesel.
Step 03
Machining to OEM tolerances
Critical surfaces are remachined — decking, boring, honing, and resurfacing — so clearances match original-equipment standards. On a diesel, precise tolerances are what hold compression, control oil, and survive the heat and pressure of heavy-duty work.
Step 04
New wear components installed
Bearings, rings, gaskets, seals, and other standard wear items are replaced with new parts — never reused. Heavy-duty head gaskets and fasteners are critical on a diesel, so the components that determine longevity all start fresh.
Step 05
Balancing & assembly
Rotating assemblies are balanced and the engine is reassembled by experienced builders to controlled torque and clearance specs. Proper balancing and torque control reduce vibration and protect a hard-working diesel for the long haul.
Step 06
Testing & quality control
Before it ships, the engine is tested and given a final quality check. You receive a diesel that has already proven it runs right — not one you're hoping comes to life in your bay. (Confirm injector, turbo, and accessory coverage with your specialist.)
Make the Smart Choice
Remanufactured vs. used vs. brand-new
When a diesel needs replacing, you have three real options. Here's how a Fraser remanufactured diesel engine compares to a used engine and a brand-new crate diesel on the things that actually matter.
| Fraser Remanufactured | Used / Junkyard | Brand-New OEM | |
|---|---|---|---|
| Cost | Strong value | Low upfront | Highest |
| Rebuilt to factory specs | Yes — fully | No | Yes |
| New wear components | Yes | No | Yes |
| Known history & condition | Yes — verified | Unknown | Yes |
| Tested before shipping | Yes | Rarely | Yes |
| Warranty | Yes — up to 5 yrs | Limited / none | Yes |
| Availability | Nationwide, in stock | Hit or miss | Often back-ordered |
A used diesel may look cheaper today, but you inherit someone else's wear and no real protection if it fails — and diesel failures are expensive. A new crate diesel is excellent and priced accordingly. A Fraser remanufactured diesel sits in the sweet spot: new-engine quality and a warranty, without the new-engine bill.
Six Decades of Powertrain Expertise
Why customers choose Fraser diesel engines
Quality builds get you a great diesel. Everything around the engine — support, coverage, availability, and trust — is what makes Fraser the partner shops and drivers come back to.
Warranty protection
Every remanufactured diesel engine is warranty-backed, with a 5-year warranty option for added peace of mind on the road, the job, or in the shop.
27 locations, nationwide shipping
With 27 locations across the country, your diesel engine is in stock and on its way fast — wherever you are.
US-based specialists
Talk to real powertrain experts in the United States who help you confirm the right diesel engine the first time.
Financing up to $10,000
Flexible financing makes a quality remanufactured diesel engine affordable now, so you're back on the road without the wait.
Public, shops & wholesalers
We sell direct to everyone — individual drivers, independent auto centers, and wholesalers alike.
Trusted since 1961
More than six decades of remanufacturing experience stand behind every diesel engine that leaves our facilities.
Coverage
Diesel engines we remanufacture
From three-quarter- and one-ton pickups to vans and commercial trucks, Fraser remanufactures a broad range of diesel engines — including popular platforms like the Ford Power Stroke, Dodge/Ram Cummins, and Chevrolet/GMC Duramax, plus other domestic and foreign diesels. There's a strong chance we build yours, and if you're unsure, our specialists will confirm the exact match for your vehicle.
The fastest way to get an exact-fit answer is to look your engine up by vehicle or by VIN. A VIN lookup removes the guesswork by matching your diesel to its precise build — important when engine codes and model years vary — so you order with confidence the first time.
Answers
Remanufactured diesel engine FAQ
What is the difference between a remanufactured and a rebuilt diesel engine?
A rebuilt diesel usually replaces only the parts that failed, leaving the rest at its existing wear level. A remanufactured diesel engine is returned fully to OEM specification: the block, crank, and heads are machined to precise tolerances and all standard wear items are replaced. That complete, standardized process is what makes a remanufactured diesel more consistent and longer-lasting under heavy loads.
Are remanufactured diesel engines reliable?
Yes. Because a Fraser diesel is machined back to factory tolerances, fitted with new wear components, and tested before it ships, it delivers reliability comparable to a new engine — and far more dependability than a used diesel of unknown history.
How much can I save versus a brand-new diesel engine?
A remanufactured diesel typically costs significantly less than a new OEM crate diesel while delivering comparable quality — a meaningful gap given how expensive new diesels are. Exact savings depend on your specific engine, so request a quote or call a specialist for current pricing.
What warranty comes with a Fraser remanufactured diesel engine?
Fraser remanufactured diesel engines are warranty-backed, with a 5-year warranty option available. Coverage can vary by application, so contact a specialist at 800-731-3177 to confirm the right warranty for your engine.
Do you ship diesel engines nationwide, and who can buy?
Yes. Fraser ships nationwide from 27 locations and sells to the public, independent auto centers, fleets, and wholesalers. You can order online any time or speak with a US-based specialist during business hours.
How do I find the right diesel engine for my truck?
Browse by vehicle, or use the VIN lookup for an exact-fit match — helpful since diesel engine codes vary by year. If you'd rather have help, request a quote above or call and a specialist will identify the correct engine for you.
Ready to find your remanufactured diesel engine?
Request a free quote at the top of the page, or talk it through now with a US-based powertrain specialist who'll match the exact diesel engine to your vehicle.
Speak with a specialist800-731-3177