What is the compression ratio for these pistons?

These Mahle OE pistons feature a 17.1:1 compression ratio. This is designed to work with the specific tuning and requirements of the Cummins B 5.9L engine found in 2003-2004 trucks with VIN C or ETH engine codes.

Does this set include everything needed for the pistons?

This is a set of six pistons. It does not include piston rings, wrist pins, or connecting rods, which are typically sold separately. You will need to ensure you have these other necessary components for installation.

Can these pistons be shipped to California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle OE Cummins B 5.9L Piston Set 2243672

Name: Mahle OE Cummins B 5.9L STD 03-04 17.1:1 CR HO Vin C and Eng ETH Piston (Set of 6)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-cummins-b-5-9l-std-03-04-17-1-1-cr-ho-vin-c-and-eng-eth-piston-t14-53081
Price: 964.51 USD
Availability: BackOrder

Mahle OE Cummins B 5.9L STD 03-04 17.1:1 CR HO Vin C and Eng ETH Piston (Set of 6)

$964.51

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 5.9L STD 03-04 17.1:1 CR HO Vin C and Eng ETH Piston (Set of 6)

Key Features

Fits 2003-2004 Cummins B 5.9L engines with VIN C or ETH.
Standard (STD) bore size for direct replacement.
17.1:1 compression ratio for optimal diesel performance.
Set includes six pistons for a complete engine build.
Constructed from a durable aluminum alloy for strength and heat resistance.
Manufactured to meet original equipment manufacturer (OE) specifications.

This piston set is designed for 2003-2004 Cummins B 5.9L engines with VIN C or ETH engine codes. Please verify your vehicle's specific engine configuration before ordering.

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Product Details

These Mahle OE pistons are built with a 17.1:1 compression ratio, specifically for Cummins B 5.9L engines found in 2003-2004 trucks with the 'C' or 'ETH' VIN codes. Mahle has been a trusted name in engine components for a long time, and these pistons are made to meet the original equipment manufacturer's standards for your diesel engine. They are designed to be a direct replacement, ensuring a proper fit and function without needing any modifications.

Each piston in this set is manufactured from a durable aluminum alloy, chosen for its strength and ability to handle the high temperatures and pressures common in diesel operation. They come in standard (STD) size, meaning they are ready to install in a factory-spec bore. The set includes six pistons, which is exactly what you need for a complete engine rebuild on your inline-six Cummins. Mahle's attention to detail means these pistons are well-balanced and ready to perform, helping to restore or enhance your engine's power and efficiency.

When rebuilding your diesel engine, using pistons that match the original specifications is crucial for reliability and longevity. This set from Mahle OE provides that peace of mind, ensuring your Cummins B 5.9L runs as it should. Please note that these pistons are not CARB approved and cannot be shipped to California.