2003-2004 Cummins Premium Stock Plus Builder Box (PDM-59STKBB)

Description

The Premium Stock Plus Builder Box is an unassembled, machined, and blueprinted short-block kit for the 2003-2004 5.9L Common Rail Cummins. Every component arrives ready for assembly so you can build the bottom end yourself and skip the assembly labor.

The kit is built around premium upgraded parts — plateau-honed block with torque plate, balanced rotating assembly, ARP main and rod bolts, coated and chamfered pistons — to deliver a long-running, high-quality bottom end.

Features

• Machined block, plateau-honed with torque plate
• Machined to blueprint spec
• Machine-balanced crankshaft
• Machine-balanced stock rods with ARP rod bolts
• Machine-balanced coated and chamfered pistons and wrist pins with rings
• Stock camshaft and new cam bearings
• 12mm ARP main studs
• Coated H-series main and rod bearings
• New Cummins oil cooler, oil pump, and tappets
• New Cummins lower engine gasket kit

Notes

• Ships unassembled — short-block components only. No fuel or turbo parts included.
• Run Joe Gibbs Break-In Oil (not included) for the first 300-500 miles on any Industrial Injection short or long block.
• Core charge covers: engine block, crankshaft, connecting rods, camshaft, and the builder-box crate.
• Core deposit applies — keep your old long block and return it to recover the deposit.