What does 'Moly coated' mean for these piston rings?

Moly coating, short for Molybdenum, is applied to the piston ring's face. This coating helps reduce friction between the ring and the cylinder wall, which can improve performance and extend the life of both components.

What does the '.040' in the part number signify?

The '.040' indicates that these rings are 0.040 inch undersize. This means they are intended for use with pistons that have been machined to be 0.040 inches larger in diameter than their original size, typically during an engine rebuild.

Are these rings compatible with all 6.0L engines from that era?

These rings are specifically designed for the 1991-1995 Chevrolet C5500/C60/C70 Kodiak and GMC C5000/C6000/C7000 Topkick models equipped with the 6.0L engine. Always verify fitment for your specific vehicle's engine and year.

Mahle OE Piston Rings Moly Ring Set 41706.040

Name: Mahle Rings GMC Trk 366 6.0L Eng 1991-94 Moly Ring Set
Brand: Mahle OE
Price: 91.14 USD
Availability: InStock

Mahle Rings GMC Trk 366 6.0L Eng 1991-94 Moly Ring Set

$91.14

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

Mahle Moly Ring Set 41706.040 for 6.0L engines. Reduces friction and oil consumption for longer engine life.

Key Features

Fits 1991-1995 Chevrolet and GMC trucks with 6.0L engines.
Moly coated rings are 0.040 inch undersize.
Designed to reduce friction and minimize oil consumption.
Built to meet original equipment manufacturer requirements.
Contributes to longer engine service life.

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Product Details

These Mahle Moly piston rings are 0.040 inch undersize, meaning they are designed to fit pistons that have been machined to a slightly larger diameter. This is a common practice when rebuilding an engine to ensure a proper seal and optimal performance. They are built to meet the demanding requirements of original equipment manufacturers, focusing on reducing friction and minimizing oil consumption. This attention to detail helps ensure a longer service life for your engine.

Mahle has a reputation for bringing advanced piston ring technology to the market. These rings are designed to reduce friction, which can lead to improved efficiency, and they also work to minimize how much oil gets past the piston into the combustion chamber. This not only helps keep your exhaust cleaner but also prevents oil from burning off, which can extend the life of your engine components. They are a well-built option for rebuilding engines in a range of Chevrolet and GMC trucks, including models like the C60 Kodiak and C7000 Topkick from the early to mid-90s.