What is included in this piston and ring set?

This Mahle OE set includes six pistons, six sets of matching piston rings, six piston pins, and six sets of piston pin clips. Everything needed to install the pistons is provided.

Why are compensated ring grooves important?

Compensated ring grooves help ensure the piston rings are properly loaded against the cylinder wall. This is essential for good oil control, preventing oil from entering the combustion chamber, and minimizing blow-by.

Can this piston set be shipped to California?

No, this piston set is not CARB approved and cannot be shipped to California due to emissions regulations.

1991-1993 Dodge W250 Piston Set | Mahle OE

Name: Mahle OE Cummins B 5.9L L6 STD w/ PCR Eng Set Piston With Rings Set (Set of 6)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-cummins-b-5-9l-l6-std-w-pcr-eng-set-piston-with-rings-set-set--t14-53316
Price: 735.08 USD
Availability: BackOrder

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

$735.08

On Backorder — Expected to ship by May 15, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1991-1993 Dodge W250. Mahle OE piston and ring set for Cummins B 5.9L L6 PCR engines. Set of 6.

Key Features

Fits 1991-1993 Dodge W250, 1991 Dodge D250 and D350, and 1992-1993 Dodge W350 with the Cummins B 5.9L L6 PCR engine.
Set includes six pistons and matching rings, ready for installation.
OE quality pistons meet original equipment specifications.
Compensated ring grooves ensure proper ring loading for effective oil control.
Expansion-controlled designs reduce engine noise, wear, and emissions.
Includes piston pins and clips for a complete assembly.

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Will this fit your vehicle?

Product Details

If you're rebuilding the engine in your 1991-1993 Dodge W250 with the Cummins B 5.9L L6 PCR engine, a solid set of pistons is crucial. Mahle OE pistons are built to the same standards as the original equipment, meaning they'll perform just like the ones that came from the factory. This set includes six pistons and matching rings, ready for installation right out of the box, saving you time and hassle during your rebuild.

Mahle designs these pistons with compensated ring grooves. This feature ensures the piston rings are loaded correctly, which is key for good oil control and preventing blow-by. They also incorporate expansion-controlled designs. This means the pistons have tight, but not too tight, clearances when fitted into the cylinder. This helps reduce engine noise, wear, and emissions, while also improving how well the engine manages its oil. Mahle is a major OE piston manufacturer worldwide, so you're getting parts that meet stringent factory specifications.

This set comes complete with pistons, rings, pins, and clips, making it a convenient package for engine builders. Just remember that these are not CARB approved and cannot be shipped to California.