What is the compression ratio for these Mahle pistons?

These Mahle MS Performance Pistons are designed to achieve a 13.9:1 compression ratio. This is achieved through the piston's dish volume and other engine specifications.

Are these pistons suitable for a stock rebuild or a performance build?

These are cast performance pistons, suitable for both stock rebuilds and performance applications where enhanced durability and specific compression ratios are desired for the Cummins 5.9L 12V engine.

What is the significance of the -59.2cc dish volume?

The -59.2cc dish volume is a key specification that contributes to the overall compression ratio of the engine. It's a design feature that helps achieve the intended 13.9:1 CR when paired with the correct cylinder head and deck height.

Mahle Cummins 5.9L Diesel Piston Set 197952115

Name: Mahle MS Piston Set Cummins 4.015in Bore 4.724in Stroke 7.559od 1.575 Pin -59.2cc 13.9 CR Set of 6
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-cummins-4-015in-bore-4-724in-stroke-7-559od-1-575-pin--t14-546546
Price: 1091.64 USD
Availability: BackOrder

Mahle MS Piston Set Cummins 4.015in Bore 4.724in Stroke 7.559od 1.575 Pin -59.2cc 13.9 CR Set of 6

$1091.64

On Backorder

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

Mahle MS Piston Set Cummins 4.015in Bore 4.724in Stroke 7.559od 1.575 Pin -59.2cc 13.9 CR Set of 6. High-performance cast pistons for Cummins 5.9L 12V engines.

Key Features

Fits Cummins 5.9L 12V 359 cu in engines.
Set of 6 cast performance pistons.
4.015 inch bore size.
4.724 inch stroke.
-59.2cc dish volume.
13.9:1 compression ratio.

This piston set is designed for Cummins 5.9L 12V 359 cu in engines. Not CARB approved and cannot ship to California.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Mahle is well-known for making solid engine components, and this set of MS Performance Pistons for the Cummins 5.9L 12V B-Series engine is a prime example. If you're rebuilding the heart of your 359 cubic inch Cummins, these pistons are built to handle the demands of a performance application. They are designed with a 4.015-inch bore and a 4.724-inch stroke, featuring a 1.575-inch pin diameter. The cast construction offers a good balance of strength and weight for these engines.

This set includes six pistons, each with a -59.2cc dish volume, contributing to a 13.9:1 compression ratio. The rod length specified is 7.559 inches, and the overall rod center-to-center measurement is 4.724 inches. These pistons are designed to fit the specific dimensions of the 5.9L 12V Cummins B-Series engine, ensuring a proper fit during your rebuild. Mahle's attention to detail in their casting process means you're getting a well-made component ready for installation.

When undertaking a diesel engine rebuild, using reliable internal components is crucial for longevity and performance. This set of Mahle MS Performance Pistons is a solid option for those looking to restore or enhance their Cummins 5.9L 12V engine. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.