What does '0.020" undersize' mean for these piston rings?

This means the rings are slightly smaller than standard size, by 0.020 inches. They are intended for use when the engine's cylinder bores have been machined (honed or bored) to a matching 0.020 inch oversize to ensure a proper fit and seal.

Are these rings suitable for all Cummins B-Series engines?

This specific ring set is designed for turbocharged Cummins B-Series engines found in certain Dodge and Ram trucks from 1989-2009. It's important to verify your specific engine model and year range for compatibility.

What is the benefit of a ceramic chrome top ring?

The ceramic chrome plating on the top ring offers enhanced durability and wear resistance compared to standard materials. This helps the ring withstand the high temperatures and pressures in a turbocharged engine, contributing to a longer service life.

Mahle OE Piston Ring Set Ceramic Chrome Top Ring 0.020" Unde

Name: Mahle Rings Cummins B-Series Turbocharged Ceramic Chrome Top Ring Chrome Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-cummins-b-series-turbocharged-ceramic-chrome-top-ring-chrom-t14-50117
Price: 38.86 USD
Availability: InStock

Mahle Rings Cummins B-Series Turbocharged Ceramic Chrome Top Ring Chrome Ring Set

$38.86

In Stock

Mahle OE S42170.020 piston ring set for Cummins B-Series engines. Features ceramic chrome top ring and 0.020" undersize.

Key Features

Fits 1989-2009 Dodge and Ram trucks with Cummins B-Series engines.
Features a ceramic chrome top ring for improved wear resistance.
Top ring is 0.020 inches undersize for specific engine rebuilds.
Designed to reduce friction and minimize engine oil consumption.
Built to meet original equipment requirements for longer service life.

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Will this fit your vehicle?

Product Details

This Mahle piston ring set features a ceramic chrome top ring, measuring 0.020 inches undersize, designed for Cummins B-Series turbocharged engines. These rings are built to meet original equipment requirements, focusing on reducing friction and engine oil consumption while extending service life. They represent an updated approach to piston ring technology, aiming for improved performance and durability.

Mahle OE piston rings are known for their advanced design, which helps minimize friction and ring mass. This focus on reducing internal engine drag can lead to better fuel efficiency and a more responsive engine. The ceramic chrome plating on the top ring offers good wear resistance, contributing to a longer service life for the rings and the engine components they interact with. This set is specifically sized at 0.020 inches undersize, which is important when rebuilding or re-ringing an engine where the cylinder bore has been machined to match.

This set fits a range of Dodge and Ram trucks, including models like the 1989-1993 Dodge D250 and the 1994-2009 Dodge Ram 3500. Always ensure you have the correct cylinder bore measurement before installing undersize rings.