What does the 0.040 inch undersize mean for these piston rings?

The 0.040 inch undersize designation means these rings are intended for use with pistons that have been machined to be 0.040 inches smaller in diameter than their original size. This is typically done when cylinder walls have been honed or bored out during an engine rebuild.

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

The moly coating on these piston rings is a dry lubricant that helps reduce friction between the ring and the cylinder wall. This can lead to improved engine efficiency, reduced wear, and a longer service life for both the rings and the cylinder bore.

Are these rings compatible with all 6.0L LS engines?

This specific ring set is designed for GM Gen IV V9 6.0L LS engines, including specific designations like LS2, LFA, LZ1, LQ9, L76, LY6, and L96, within the 2004-2010 model years. It's important to verify your engine's specific RPO codes and year range for compatibility.

Mahle Piston Rings Moly Ring Set 42084CP.040 - GM LS Engines

Name: Mahle Rings GM 6.0L LS2/LFA/LZ1/LQ9/L76/LY6/L96/L76 2004-2010 Gen IV V9 Moly Ring Set
Brand: Mahle OE
Price: 171.01 USD
Availability: InStock

Mahle Rings GM 6.0L LS2/LFA/LZ1/LQ9/L76/LY6/L96/L76 2004-2010 Gen IV V9 Moly Ring Set

$171.01

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Mahle OE Moly Piston Ring Set for GM 6.0L LS engines. This 0.040 inch undersize set helps restore compression and reduce oil consumption.

Key Features

Fits 2004-2010 GM Gen IV V9 6.0L LS engines.
Moly coating on the rings helps reduce friction and improve wear resistance.
Designed to minimize engine oil consumption and friction.
Built to OE requirements for a reliable fit and function.
This is a 0.040 inch undersize ring set.

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Will this fit your vehicle?

Product Details

These Mahle Moly piston rings are built to a 0.040 inch undersize, specifically for GM 6.0L LS Gen IV V9 engines found in a wide range of vehicles from 2004 to 2010. If you're rebuilding the top end of your engine, whether it's a Cadillac CTS, a Chevrolet Silverado, or a GMC Sierra, getting the right piston rings is crucial for proper sealing and performance. These rings are designed to minimize friction and oil consumption, aiming for a longer service life for your engine.

Mahle engineers these rings with OE requirements in mind, focusing on reducing friction and ring mass. This attention to detail helps ensure that your engine runs more efficiently and consumes less oil, which is especially important when you're looking to restore or improve engine performance after a rebuild. The moly coating on these rings is a notable feature, known for its ability to reduce friction and improve wear resistance, contributing to their overall durability.

This set is a 0.040 inch undersize, meaning it's intended for pistons that have been machined to that specific size. It's important to confirm your piston size before ordering. This set is a solid option for many GM 6.0L LS engine applications, helping to ensure a good seal between the piston and cylinder wall.