Sale

Exterior Components› Body Panels and Components

Mahle

6.7L Cummins ISB Standard Piston Ring Set

$59.30 $45.61 Save $13.69

SKU: M002 S42140

In Stock
In Stock
Ships by Aug 30
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The Mahle S42140 is a standard piston ring set designed to refresh cylinder sealing in 6.7L Cummins ISB engines. This OE-quality, single-cylinder ring pack features a plasma-moly top ring and OE-style profiles to help control blow-by and oil consumption.

The rings are engineered for 2007.5–2018 model years, specifically for Ram 2500, 3500, 4500, and 5500 trucks equipped with the 6.7L Cummins ISB (24-valve) engine. The standard bore size is approximately 4.213 inches (107.4 mm).
Show original supplier description
The Mahle S42140 Standard Piston Ring Set is an OE-quality component designed to restore optimal cylinder sealing for your 6.7L Cummins ISB engine. Engineered for the 2007.5–2018 model years across Ram 2500, 3500, 4500, and 5500 trucks, this ring set is crucial for maintaining factory compression and durability. For a complete engine rebuild, six sets are required. The top ring is constructed with plasma-moly coating, while the overall OE-style profiles are optimized to effectively manage blow-by and reduce oil consumption. The standard bore size for these rings is approximately 4.213 inches (107.4 mm). While these rings are designed to pair seamlessly with standard-bore Mahle 6.7L pistons, always measure and set end-gaps according to your specific build requirements and Cummins/Mahle specifications for proper installation and performance.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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 S42140
CategoryExterior Components

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy