Other ancillary parts such as the bearings, gaskets, piston, rings, seals etc… are all built with a combination of new OEM and aftermarket parts. Depending on the availability of the parts, the blocks, cams, cranks and cylinder heads can be brand new castings. Usually the blocks, crankshafts and camshafts are remanufactured back to OEM Spec. Our component builds for the 5.9 L 24 Valve engines consists of a combination of new and remanufactured parts. Remanufactured Cummins ISB 24 Valve 5.9 Component Builds This is a highly cost-effective option that comes with only a small amount of extra labor to dress the engine out the engine with still working components from your old engine. If you have a Cummins 5.9 L ISB 24 Valve with ancillary parts that still have plenty of life left to give, but whose hard internal parts are rather worn down, then our long block option is perfect as you can simply replace the necessary components like the block, cylinder head, and crankshaft without having to spend extra on the components that you do not need.

The Cummins ISB 24 Valve 5.9 L remains a popular engine for light-duty truck applications in particular, and Big Bear Engine Company is pleased to provide Cummins ISB 24 Valve replacement long block for Dodge Ram / Chrysler applications.

This 5.9 L Cummins engine received a few injection system upgrades which increased power output significantly before this model was retired in 2007, but it made a significant mark on the industry before that happened, and its impact is still felt today. Cummins ISB 24 Valve (5.9 L) Engines For SaleĪ straight-six turbo-diesel engine first unveiled in 1998, the Cummins ISB 24 Valve replaced its 12-valve 6BT predecessor and brought with it a greater level of power and efficiency.

2007 5.9 cummins rear main seal