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Exterior Components› Body Panels and Components

Mahle

Piston Ring

$98.96 $88.83 Save $10.13

SKU: M002 4095MDR-1

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Mahle 4095MDR-1 is a set of performance piston rings designed for 6.6L Duramax engines. These rings feature a 4.095-inch bore size and a file-fit design, allowing for custom end gap control. The set includes a top ring with a 1/16-inch thickness, a second ring with a 2.0mm thickness, and a third ring with a 3.0mm thickness.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMahle
Part NumberM002 4095MDR-1

Videos

Performance Diesel Cast Pistons vs OE Pistons

Performance Diesel Cast Pistons vs OE Pistons
A Look at Piston Coatings

A Look at Piston Coatings
Mahle Motorsports - Pistons

Mahle Motorsports - Pistons
How to File Fit Rings for Your Engine: Guide to Proper Gap

How to File Fit Rings for Your Engine: Guide to Proper Gap
MAHLE Motorsport Pistons Eagle Testimonial

MAHLE Motorsport Pistons Eagle Testimonial
Piston Failure Analysis - Skirt Wear

Piston Failure Analysis - Skirt Wear
MAHLE's amazing piston ring manufacturing

MAHLE's amazing piston ring manufacturing

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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