Mahle OE Cummins B 5.9L L6 .040 w/ PC Eng Set Piston Set (Set of 6)

If you're rebuilding the engine in your Cummins B 5.9L diesel, a solid set of pistons is critical. This Mahle OE piston set is built to the original specifications for your engine, ensuring a proper fit and reliable performance. These pistons are 0.040 inch undersize, meaning they are designed to be used when the cylinder bores have been machined to match this dimension during an engine rebuild.

Mahle is a well-known name in engine components, and this set is made to meet the demanding standards of the Cummins B 5.9L engine. The set includes six pistons, enough for a complete engine overhaul. They are designed for use with PC (piston cooling) features, which helps manage heat and improve durability under load. This means they are built to handle the stresses of diesel operation, providing a strong foundation for your rebuilt engine.

When rebuilding a diesel engine, using parts that match the original design is important for longevity and performance. This Mahle OE set offers that direct-fit quality. Remember that these pistons are undersized and require the cylinders to be bored to the correct specification before installation. Always refer to your engine's service manual for detailed installation procedures and specifications.