Exterior Components› Body Panels and Components

Mahle

~(0.2 lbs. 4X4X2)~ Cms. 107mm/4.210in Bore B 4.5L 6.7L (OE#4309399) Ring Set Moly

$44.70

SKU: M002 S42409

In Stock
In Stock
Ships by Jun 15
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Mahle S42409 is a piston ring set designed for Cummins 6B-6.7 engines. These steel piston rings offer higher tensile strength, yield strength, fatigue life, and hardness, leading to better stress resistance and a longer service life. They also provide improved oil economy and blow-by control while lowering friction. Mahle Original piston rings are trusted by professional automotive technicians and have over 100 years of history.

Fitment

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Specifications

BrandMahle
Part NumberM002 S42409

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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