What is the advantage of Mahle's compensated ring grooves?

Mahle's compensated ring grooves are designed to ensure proper ring loading and effective oil control. This helps maintain optimal engine performance and reduces oil consumption.

Are the piston rings included and pre-installed?

Yes, this set comes with pistons that have the piston rings already mounted. The package also includes the necessary piston pins and clips for a more convenient installation.

What does the '0.020 inch undersize' designation mean for these pistons?

The '0.020 inch undersize' means these pistons are manufactured to be slightly smaller than the standard bore size. This is typically used when the engine cylinders have been bored out to a larger diameter during a rebuild to account for wear.

1991 Dodge D250 Piston Set | Mahle OE

Name: Mahle OE Cummins B102L37+A1.020 w/ PCR Eng Pack Piston With Rings Set (Set of 6)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-cummins-b102l37-a1-020-w-pcr-eng-pack-piston-with-rings-set-se-t14-53249
Price: 751.40 USD
Availability: BackOrder

Mahle OE Cummins B102L37+A1.020 w/ PCR Eng Pack Piston With Rings Set (Set of 6)

$751.40

On Backorder

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

Fits 1991 Dodge D250. Mahle OE piston and ring set (set of 6) with 0.020 inch undersize. Ready for installation.

Key Features

Fits 1991 Dodge D250, D350, and W250.
Set includes six pistons with pre-mounted piston rings, pins, and clips.
Pistons are 0.020 inch undersize.
Compensated ring grooves ensure proper ring loading and oil control.
Expansion-controlled design reduces engine noise and wear.
OE quality from Mahle, a leading OE piston manufacturer.

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Product Details

When you're rebuilding the engine in your 1991 Dodge D250, getting the right internal components is crucial. This Mahle OE Piston With Rings Set gives you six pistons, each with compensated ring grooves already mounted. These grooves are designed to ensure proper ring loading and effective oil control, which helps keep your engine running smoothly and efficiently. Mahle is a major OE piston manufacturer, so you're getting parts that meet the original equipment specifications for your Cummins B102L37+A1.020 engine.

What you get in this package are pistons that are ready for installation, complete with the piston rings already in place. The set also includes the necessary piston pins and clips, making the assembly process more convenient for you. Mahle pistons feature an expansion-controlled design, which means they're made to have small fitting clearances. This helps reduce engine noise, minimize wear over time, lower emissions, and further improve oil control. This particular set is 0.020 inch undersize, which is important to note for your engine build.

Because these are OE quality parts from a well-known manufacturer, you can be confident in their fit and function. They are designed to work with your specific engine configuration, helping to restore its performance and reliability. Please be aware that this part is not CARB approved and cannot be shipped to California.