What is included in this piston and ring set?

This set includes six pistons, each with a 102mm bore. The pistons come with the piston rings, pins, and clips already mounted, making them ready for installation right out of the box.

Why are compensated ring grooves important?

Compensated ring grooves help ensure the piston rings are loaded correctly against the cylinder wall. This is essential for effective oil control and proper sealing, which contributes to engine efficiency and longevity.

Are these pistons a direct replacement for my stock ones?

Yes, these Mahle OE pistons are manufactured to meet original equipment specifications. They are designed as a direct replacement for the stock pistons in your 1994-1998 Dodge Ram 2500 or 3500.

1994-1998 Dodge Ram 2500 Piston Set

Name: Mahle OE Cms 102mm/4.017 Bore B6 OE 3802564 Piston With Rings Set (Set of 6)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-cms-102mm-4-017-bore-b6-oe-3802564-piston-with-rings-set-set-o-t14-53374
Price: 668.34 USD
Availability: BackOrder

Mahle OE Cms 102mm/4.017 Bore B6 OE 3802564 Piston With Rings Set (Set of 6)

$668.34

On Backorder — Expected to ship by May 7, 2026

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

Fits 1994-1998 Dodge Ram 2500. Mahle OE piston and ring set with a 102mm bore. Includes 6 pistons with rings, pins, and clips for easier installation.

Key Features

Fits 1994-1998 Dodge Ram 2500 and 1994-1998 Dodge Ram 3500.
Set includes six pistons with a 102mm (4.017 inch) bore.
Pistons come with rings, pins, and clips already mounted for easier installation.
Features compensated ring grooves for proper ring loading and oil control.
Expansion-controlled design reduces engine noise, wear, and emissions.
OE quality construction ensures direct fit and reliable performance.

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Product Details

If you're rebuilding the engine in your 1994-1998 Dodge Ram 2500, getting the right pistons is crucial for restoring performance and reliability. This set from Mahle OE includes six pistons, each with a 102mm bore, designed to meet original equipment specifications. Mahle is a major OE piston manufacturer, so you know these parts are built to the same standards as what came from the factory.

These pistons feature compensated ring grooves, which help ensure the piston rings are loaded correctly. This is important for good oil control and proper sealing against the cylinder wall. They also have expansion-controlled designs, meaning they're made to fit with minimal clearance. This helps reduce engine noise, wear, and emissions, while also improving oil control and overall engine efficiency. Mahle makes it convenient for engine builders by including the piston rings, pins, and clips already mounted, so they're ready to go right out of the box.

This set is designed as a direct replacement for your Ram's original pistons. Since these are OE-quality parts from a well-known manufacturer, you can be confident in their fit and function for your diesel engine rebuild.