What does the .020 size mean for these pistons?

The .020 designation indicates that these pistons are 0.020 inches smaller in diameter than the standard factory size. This is common when re-boring cylinders during an engine rebuild to clean up wear or damage.

Are the piston rings included and pre-installed?

Yes, this set includes the piston rings already mounted on the pistons. The piston pins and clips are also included, making the set ready for installation.

What is the benefit of compensated ring grooves?

Compensated ring grooves help ensure the piston rings are loaded correctly. This leads to better oil control and helps prevent excessive oil consumption.

Mahle OE Cummins Piston Set .020 w/ Rings 2243526WR020

Name: Mahle OE Cummins B 102L37+ .020 w/ PCR Eng Pack Piston With Rings Set (Set of 6)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-cummins-b-102l37-020-w-pcr-eng-pack-piston-with-rings-set-set--t14-53246
Price: 650.06 USD
Availability: BackOrder

Mahle OE Cummins B 102L37+ .020 w/ PCR Eng Pack Piston With Rings Set (Set of 6)

$650.06

On Backorder

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

Mahle OE Cummins B 102L37+ .020 w/ PCR Eng Pack Piston With Rings Set (Set of 6). These pistons are ready for installation with mounted rings.

Key Features

This is a set of 6 pistons with rings, pins, and clips included.
Pistons are .020 inch undersize for engine rebuilding.
Features compensated ring grooves for proper ring loading and oil control.
Expansion controlled design reduces engine noise, wear, and emissions.
Pistons come with rings pre-mounted for easier installation.
Built to original equipment (OE) specifications for Cummins B-series diesel engines.

This piston set is designed for Cummins B-series diesel engines. Always verify your specific engine model and required piston size before ordering.

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Product Details

If you're rebuilding the engine in your Cummins B-series diesel, getting the right pistons is crucial for performance and longevity. This Mahle OE piston set is built to the original equipment specifications, ensuring a proper fit and function for your engine. They come with compensated ring grooves, which help manage ring pressure and keep oil consumption in check. Plus, the expansion-controlled design means they fit snugly with minimal clearance, reducing engine noise and wear.

What's really convenient about this set is that Mahle includes the piston rings already mounted on the pistons, and they also come with the piston pins and clips. This means you can pull them right out of the box and get them ready for installation, saving you time and hassle during your rebuild. This attention to detail helps ensure reduced emissions and improved oil control right from the start.

This particular set is sized at .020 inch undersize, which is important to note for your engine build. Always double-check your cylinder bore measurements to ensure this size is appropriate for your specific engine. Mahle OE parts are well-built and designed to meet the demands of diesel engines, making them a solid choice for a reliable rebuild.