Parts / Engine
Used Engine for Medium-Duty Trucks
Complete used diesel and gas engines — 4HK1, Power Stroke, Duramax, Cummins, Vortec and Fuso — with the warranty that matches the job.
- Used OEM part
- Tested before shipping
- 60–90 day warranty
- Ships to the lower 48
- Refundable core
An engine replacement is the biggest decision a fleet or owner-operator makes on a truck that’s otherwise sound. A rebuild ties the truck up for weeks; a new crate engine — where one even exists for a 4HK1, a 6.8L V10 or a Kodiak Duramax — costs more than the truck is worth. A tested used OEM engine from a running donor puts the truck back to work in days at a fraction of either.
Our used engines are pulled from running donor trucks with documented mileage, compression or leak-down checked, and shipped as long blocks or complete assemblies per your quote. Engines carry 60–90 days of coverage under our warranty policy, ship freight to any commercial address in the lower 48, and a refundable core charge is stated on your quote.
Signs your engine has failed
- Rod knock or a deep lower-end knock under load
- Cracked block or head — coolant in oil, oil in coolant, milky dipstick
- Low compression on one or more cylinders; heavy blow-by
- Spun bearing; low oil pressure at hot idle
- Severe internal smoke that isn’t the turbo or injectors
- Hydrolocked or overheated engine with a warped head
Before you order
- Send your VIN, engine code and emissions (federal vs. CARB) — calibration, injector style and turbo differ within an engine family by year.
- Decide long block vs. complete: a complete donor engine keeps turbo, injectors, manifolds and accessories as options; a long block means you transfer yours. Tell us which and we quote accordingly.
- Warranty requires fresh fluids and filters, a new thermostat and seals, a cooling-system flush and installation by a qualified tech — see our warranty policy.
- Plan for freight: engines ship on a pallet to a commercial address or a shop with a forklift or liftgate.
Select your truck for a engine quote
Chevrolet
Mitsubishi Fuso
Related parts
Frequently asked questions
Which trucks do you stock a used Engine for?
Isuzu NPR, NQR and NRR; Ford F-450 and F-550; Chevrolet Silverado and GMC Sierra 4500HD/5500HD plus Kodiak and TopKick C4500; Ram 4500 and 5500; and Mitsubishi Fuso Canter FE125–FE180. Pick your truck below or send us your VIN.
Is a used Engine tested before it ships?
Yes. Every engine we sell is pulled from a running donor truck, inspected and tested before it ships.
How do I get a quote for a used Engine?
Use the form on this page or call us. Share your truck and VIN and we confirm exact fitment, then call you back with a price in about 30 seconds during business hours — or email it if we can’t reach you.
Is a used Engine covered by a warranty?
Yes, we stand behind this engine with our warranty. Exact terms are confirmed on your quote.
Do you ship a used Engine nationwide?
Yes — we ship to all 48 contiguous states with tracked delivery. Most parts arrive in 3–7 business days; engines, transmissions and axles ship freight and typically arrive in 5–10.
What’s included with a used engine?
A long block (block, heads, crank, cam, pistons) as standard; complete assemblies with intake, exhaust manifolds, turbo, injectors and accessories are quoted on request. Externals like alternators, starters, sensors and A/C parts are not covered under engine warranty.
How is a used engine tested?
Compression or leak-down on every cylinder, oil inspected for metal and coolant, and donor mileage documented in writing.
What are the warranty and core terms on an engine?
Engines carry 60–90 days of coverage depending on age and availability, with fresh fluids, filters, thermostat and seals and a cooling-system flush required at installation. A refundable core charge applies — your old engine returns within 30 days in rebuildable condition.
Is there a core charge on this Engine?
This engine may carry a refundable core charge, returned when your old unit is sent back within 30 days. Any core charge is stated clearly on your quote.