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Exterior Components Body Panels and Components

Mahle

Piston Ring

$98.96 $88.83 Save $10.13

SKU: M002 4075MDR-1

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Special Order
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Mahle Motorsport 4075MDR is a set of diesel ring sets designed for GM Duramax engines. These drop-in piston rings have a bore size of 4.075 inches and feature a file-fit design.

The ring set includes a 1/16 inch top ring, a 2.0mm second ring, and a 3.0mm oil ring. The top compression ring (UCR) is made of stainless steel with a CrN PVD coating and a thickness of 1/16 inch. The lower compression ring (LCR) is made of cast iron with a chrome coating and a thickness of 2.0mm. The oil ring (OCR) is made of gas nitrided stainless steel with standard tension and a thickness of 3.0mm. This set is sold as a set of 8 rings for 8 cylinders.

Fitment

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Specifications

BrandMahle
Part NumberM002 4075MDR-1

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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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