What does the 0.040 inch undersize specification mean for these pistons?

The 0.040 inch undersize specification means these pistons are slightly smaller than the standard bore size. This is used when an engine block has been bored out to correct for wear or to achieve a specific engine build. You'll need to ensure your engine block has been machined to match this size.

What is the significance of 'CH' and 'PC' in the part number?

The 'CH' typically refers to the piston crown design, which is engineered for optimal combustion in Cummins B engines. The 'PC' often indicates special coatings or treatments applied to the piston for enhanced durability and reduced friction during operation.

Are rings included with this piston set?

This product listing is for the piston set only. Piston rings are typically sold separately and should be purchased to match the piston size and engine specifications.

Mahle OE Cummins Piston Set 2243515040

Name: Mahle OE Cummins B 71.585mm CH .040 w/ PC Eng Pack Piston Set (Set of 6)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-cummins-b-71-585mm-ch-040-w-pc-eng-pack-piston-set-set-of-6-t14-53446
Price: 655.00 USD
Availability: BackOrder

Mahle OE Cummins B 71.585mm CH .040 w/ PC Eng Pack Piston Set (Set of 6)

$655.00

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 71.585mm CH .040 w/ PC Eng Pack Piston Set (Set of 6). This set is 0.040 inches undersize for Cummins B engines.

Key Features

Set includes six pistons for Cummins B-series diesel engines.
Each piston measures 71.585mm bore diameter and is 0.040 inches undersize.
Mahle OE parts meet original equipment manufacturer standards for reliability.
Piston crown design (CH) is optimized for combustion efficiency.
Features specific coatings or treatments (PC) for improved durability and reduced friction.

This piston set is designed for Cummins B-series diesel engines. Ensure your engine block has been bored to the 0.040 inch undersize specification before installation.

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Product Details

If you're rebuilding the engine in your Cummins B-series diesel, this Mahle OE Piston Set is a solid option. This set includes six pistons, each measuring 71.585mm in bore diameter and 0.040 inches undersize, designed to fit your specific engine build. Mahle OE parts are known for their reliability and are often the same components found in new vehicles, meaning you're getting a part that meets the original manufacturer's standards.

These pistons are built to handle the demanding conditions of diesel operation. The 'CH' designation typically refers to the piston crown design, which is optimized for combustion efficiency in these engines. The 'PC' in the part number often indicates specific coatings or treatments applied to the piston skirt or crown for improved durability and reduced friction. This attention to detail in materials and design helps ensure a long service life and consistent performance, even under heavy loads. When you're putting an engine back together, using well-made components like these Mahle pistons is key to a successful rebuild.

This set comes with everything you need to replace the pistons in your Cummins B engine. Remember that these pistons are 0.040 inches undersize, so ensure your engine block has been bored to match this specification. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures to get the most out of your new Mahle pistons.