5.9 Cummins 12V Long Block | Heads + Short Block | 1989-1998 Cummins 5.9L 12V

This is a Long Block diesel motor completely rebuilt in the US as, an exact replacement for your 5.9L Cummins 12 valve. This build comes with a warranty to take you up to 2 years / unlimited miles. We will require a VIN to verify your year/make/model to ensure you get the proper engine replacement. 

These Remanufactured 5.9 Cummins Long Blocks are assembled using quality parts from brands such as Mahle, Federal Mogul, Hastings, EngineTech, Mopar, Cummins, Melling, Silvolite, SBI, Elgin, and others. New piston kits, rod bearings, main bearings, cam bearings, long block gasket set, and several valve train parts are replaced.

The Block has NEW:

• PISTONS
• RINGS
• ROD BEARINGS
• MAIN BEARINGS
• CAM BEARINGS
• OIL PUMP
• LIFTERS
• HEAD BOLTS
• HEAD STUDS ( at extra cost )
• FREEZE PLUGS
• COMPLETELY REMANUFACTURED CYLINDER HEAD

How The Process Works:

All engines are blueprinted. Engine cylinders are bored, honed, and tested. Main bearing are align honed or align bored. This is part of the blueprint process. Blocks with spun main bearings are not used. The block and decks are blocked and resurfaced with machines. Crankshafts are heat treated, and balanced before installation

Valves and springs are replaced. Damaged crankshaft journals are omitted and there is no spray welding of any components in the machining process. Connecting rods are machined to OEM specifications or better.

The Cylinder heads are remanufactured to exceed OEM specifications in a top of line valve seat machines. The Valve guides are replaced & honed in guide hones. The Head gasket surfaces are refinished with cutters, the latest technology in the resurfacing of cast iron and aluminum to ensure a proper gasket seal. Surfaces are then checked with the same profilometer used on block gasket surfaces.

Finally all assembled long blocks are tested for compression before shipping. Our engine builders are professional engine machinists.

Please have your VIN ready when you wish to order.