Rows of used heavy-duty diesel engines on pallets in a Used Auto Nation warehouse
Used Diesel Engines

Used Diesel Engines, Compression Tested & Warrantied

Heavy-duty diesel engines pulled from trucks and commercial vehicles, compression tested by our techs, and backed by a 3-year warranty.

640+
Diesel engines in stock
3-Year
Written warranty
48-State
Freight coverage

Compression Verified

Every diesel engine is compression tested cylinder by cylinder.

3-Year Warranty

Covered against defects for 3 years from your invoice date.

High-Mileage Rated

Inspected for wear points specific to diesel duty cycles.

Heavy-Duty Freight

Palletized and rigged for safe delivery of larger blocks.

In Stock Now

Used Diesel Engines, Compression Tested & Warrantied Ready to Ship

6.7L Power Stroke Diesel EngineGrade A

6.7L Power Stroke Diesel Engine

Fits 2011–2016 Ford F-250 / F-350

112,000 mi pulled
6.6L Duramax Diesel EngineGrade A

6.6L Duramax Diesel Engine

Fits 2011–2016 Chevrolet Silverado 2500

98,500 mi pulled
6.7L Cummins Diesel EngineGrade B

6.7L Cummins Diesel Engine

Fits 2013–2018 Ram 2500 / 3500

104,300 mi pulled
Common Questions

Frequently Asked Questions

Do you carry diesel engines for vans and commercial trucks, not just pickups?
Yes. In addition to pickup diesel engines, we source diesel blocks from vans and medium-duty commercial trucks. Call our team with your VIN and we will check current availability.
What does the 3-year warranty cover on diesel engines?
It covers defects in material or workmanship discovered after installation, provided the engine is installed and maintained according to standard diesel service practice.
Are diesel engines compression tested before sale?
Every diesel engine is compression tested cylinder by cylinder and visually inspected for leaks, cracks, and injector condition before it is graded and listed.
How is a diesel engine shipped?
Diesel engines ship on reinforced pallets via heavy-duty freight carrier due to their weight, typically arriving in 5–10 business days depending on distance from our warehouses.