Mahle OE Cummins B 5.9L L6 .020 w/ PCR Eng Set Piston With Rings Set (Set of 6)

If you're rebuilding the engine in your 1991-1993 Dodge W250 with the Cummins B 5.9L L6 engine, a solid set of pistons is crucial. These Mahle OE piston and ring sets are built to the original equipment specifications, meaning they'll perform just like the ones your truck came with from the factory. They're designed to be a direct replacement, making the rebuilding process smoother.

What sets these Mahle pistons apart is their attention to detail. They feature compensated ring grooves, which help ensure the piston rings are loaded correctly. This is important for maintaining good oil control and preventing blow-by. The expansion-controlled design also means they're made with tight fitting clearances. This helps reduce engine noise, wear, and emissions, while also improving overall oil control. Mahle is one of the largest original equipment piston manufacturers globally, so you're getting a well-built part from a company that knows diesel engines inside and out.

This set comes with six pistons, each already fitted with piston rings, and includes the necessary pins and clips. This means you can get them installed without needing to source those smaller components separately, saving you time and hassle during your engine build. Remember, these are .020 inch undersize pistons, so they are intended for use when the cylinder bores have been machined to match this size.