What does the '.030' in the part number mean?

The '.030' indicates that these piston rings are 0.030 inches undersize. This means they are intended for use in engine cylinders that have been bored out by 0.030 inches during a rebuild, to ensure a proper fit and seal.

What is the benefit of the moly coating on these rings?

The moly coating helps the piston rings seat quickly against the cylinder wall. This can lead to reduced friction and wear, especially during the engine's break-in period, contributing to a longer service life.

Are these rings suitable for a standard engine rebuild?

Yes, these rings are designed to meet original equipment specifications and are suitable for engine rebuilds. The moly coating and focus on reducing friction and oil consumption aim to provide a long service life.

Mahle OE Piston Rings 41473CP.030 - 2.8L/3.1L Engines

Name: Mahle Rings GMC Pass 173 2.8L Eng 87-89 189 3.1L Eng 88-93 GMC Trk 189 3.1L Moly Ring Set
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-gmc-pass-173-2-8l-eng-87-89-189-3-1l-eng-88-93-gmc-trk-189--t14-49289
Price: 47.23 USD
Availability: BackOrder

Mahle Rings GMC Pass 173 2.8L Eng 87-89 189 3.1L Eng 88-93 GMC Trk 189 3.1L Moly Ring Set

$47.23

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle OE Moly Piston Ring Set for 2.8L and 3.1L engines. Features moly coating for improved durability and reduced friction.

Key Features

Fits 1987-1999 Buick, Chevrolet, and Pontiac vehicles with 2.8L and 3.1L engines.
This is a 0.030 inch undersize piston ring set.
Features a moly coating to reduce friction and improve durability.
Designed to meet original equipment requirements for oil consumption and service life.
Built with advanced piston ring technology from Mahle OE.

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Will this fit your vehicle?

Product Details

If you're rebuilding the engine in your 1987-1999 Buick, Chevrolet, or Pontiac, Mahle OE Moly Piston Rings are a solid choice for getting your cylinders sealed up right. These rings are built to meet original equipment requirements, focusing on reducing friction and oil consumption while aiming for a long service life.

This particular set, part number 41473CP.030, is 0.030 inch undersize, meaning it's designed for cylinders that have been bored out slightly during an engine rebuild. The moly coating on these rings helps them seat quickly against the cylinder wall and can reduce wear, especially during the critical break-in period. Mahle has a reputation for bringing advanced ring technology to the market, aiming to minimize oil burning and keep your engine running smoothly.

This set fits a wide range of vehicles, including popular models like the Chevrolet Camaro, Pontiac Firebird, and Buick Regal, among many others. Always ensure you've checked the full fitment list to confirm compatibility with your specific vehicle.