What does the '0.040' in the part number mean?

The '0.040' indicates that this ring set is 0.040 inches undersize. This means it's designed for engines that have been bored out to this specific larger diameter during a rebuild, to bring the cylinder walls back into spec.

Why is a moly coating important on piston rings?

The moly coating on these Mahle rings helps them seat quickly against the cylinder walls. This proper seating is crucial for creating a good seal, which prevents combustion gases from escaping (blow-by) and reduces oil consumption.

What is the benefit of reducing friction and ring mass?

Reducing friction and the weight of the piston rings helps the engine run more efficiently. This can lead to slightly improved performance and, importantly, contributes to a longer overall service life for the engine components.

Mahle OE Moly Ring Set 41617.040 - GMC 454 7.4L

Name: Mahle Rings GMC Trk 454 7.4L Eng 91-94 Moly Ring Set
Brand: Mahle OE
Price: 121.14 USD
Availability: InStock

Mahle Rings GMC Trk 454 7.4L Eng 91-94 Moly Ring Set

$121.14

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 Ring Set 41617.040 for 7.4L engines. Reduces friction and oil consumption for longer engine life.

Key Features

Fits 1991-2000 Chevrolet and GMC trucks with 7.4L engines.
Moly coating helps ensure quick seating and reduced friction.
Designed to minimize engine oil consumption.
Reduces friction for improved engine efficiency.
Provides a longer service life for your engine.
This set is 0.040 inch undersize.

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Will this fit your vehicle?

Product Details

If you're rebuilding the engine in your 1991-2000 Chevrolet or GMC truck, like a C2500 Suburban or Savana 3500, a fresh set of piston rings is essential. These Mahle OE Moly Piston Rings are designed to minimize friction, reduce oil consumption, and provide a longer service life for your 7.4L engine.

Mahle engineers these rings with advanced technology, focusing on reducing both friction and the weight of the rings themselves. This not only helps your engine run more efficiently but also contributes to its overall longevity. The moly coating on these rings helps them seat quickly and effectively against the cylinder walls, which is crucial for proper sealing and preventing blow-by. This set is specifically sized at 0.040 inches undersize, meaning it's intended for engines that have been bored out to match this specification during a rebuild.

This ring set fits a wide range of Chevrolet and GMC trucks and vans from the early 90s through 2000. Ensure you check the fitment details to confirm compatibility with your specific vehicle. This is a solid option for anyone looking to restore their engine's performance and reliability.