Remanufactured Cummins Engines

Fisher Power Supply is a leader in remanufactured Cummins engines and Cummins short and long blocks. We are your diesel engine specialists for remanufactured Cummins engines. Our diesel engine technicians test every diesel engine and diesel engine part extensively and provide our clients with the highest quality and performance.

We ship nationwide!

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Here at Fisher Power Supply, we strive to provide each of our customers with an amazing engine that is better than the original. Our goal is to get the job done as quickly as possible; we understand that your time is valuable. Just because we are fast does not mean that we skip important steps. All engines that come to us follow the same procedures.

First, we disassemble the engine down to the block itself; from there each piece is inspected thoroughly for any cracks or defects. After inspection, all parts are cleaned. Each piece including the block, head(s), and crank are replaced with new, remanufactured or machined within OE specifications. The injectors are tested and replaced. Once everything meets our standards during the final inspection, the engine is assembled from the block up. Our technician’s precision to detail ensure that nothing gets overlooked. The engine is then tested and painted. We build our own custom crates for each engine. This ensures safety and security during the shipping process. Our crates are qualified for overseas shipment as well.

We GUARANTEE the satisfaction of our product that we deliver to you! 

We offer Short, Long and Extended Long Blocks for Cummins. Our remanufactured long blocks meet or exceed OEM standards.

A short block includes engine block, crankshaft, connecting rods, cylinder kits, and piston coolers. A long block includes all of the above plus a cylinder head. An extended long block has everything the short and long block has adding in a camshaft, front cover, and gear train. (Injectors, rocker arms, pushrods, and bridges are additional for a tune-up) Extended Long Blocks will be timed. Our long blocks come with the gaskets necessary to complete engine. We use new or remanufactured parts. Our reman parts are machined to OEM specifications.

With our Cummins Long Blocks, we pay close attention to our liner protrusion to ensure maximum head gasket crush and sealing. We do all necessary updates for our engines, for example when building our ISX we use the APR Cylinder Kits (Anti-Polishing Ring). This update helps to reduce the amount of carbon build-up and oil consumption. Giving way to the longevity of the engine.

*We can now rebuild all ISX valve and injector rocker arms/followers*

 We Service All Applications

Industrial- On-Highway- Marine

 An often unique design and powerful yet efficient capabilities, Cummins designs are developed to support every component of the engine. Cummins engines have been used in nearly every type of vehicle. These powerful engines can be found in a variety of vehicles such as trucks, semis, construction machinery, marine vessels, and recreational vehicles. These engines are versatile and unique in their shape and size, offering various options for customers.

If you are looking for a quality CUMMINS engine, short/long block or parts for your engine, look no further than Fisher Power Supply.

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Contact us today to have your engine remanufactured, or for more information about our remanufacturing process.


Shop our current inventory of remanufactured engines, engine kits, and parts.

Our Warranty Program

At Fisher Power Supply we work hard to ensure the quality of our workmanship and the products we use. We offer a 1-year unlimited miles/hour warranty on our all our remanufactured Diesel engines. For more information on our warranty program click here.