What does the '0.030' in the part number mean?

The '0.030' in the part number 41909.030 indicates that this piston ring set is 0.030 inch undersize. This means they are intended for use with pistons that have been machined down by 0.030 inches, typically during an engine rebuild or when replacing worn pistons.

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

The moly (molybdenum) coating on the top ring is designed to reduce friction between the piston ring and the cylinder wall. This improved lubrication can lead to less wear, better heat transfer, and potentially improved engine efficiency over time.

Are these rings compatible with all 6.6L Duramax engines?

This specific ring set is designed for 6.6L Duramax Turbo Diesel engines from 2001-2010, specifically for VIN 1 engines. It's important to confirm your engine's VIN code and year range to ensure proper fitment for your vehicle.

Mahle OE Moly Ring Set 41909.030 - GMC 6.6L Duramax Diesel

Name: Mahle Rings GMC Trk 6.6L 403 CID Duramax Turbo Diesel 2001-2003 VIN 1 Moly Ring Set
Brand: Mahle OE
Price: 269.41 USD
Availability: InStock

Mahle Rings GMC Trk 6.6L 403 CID Duramax Turbo Diesel 2001-2003 VIN 1 Moly Ring Set

$269.41

Only 1 left in stock

Mahle OE Moly Ring Set 41909.030. This set is 0.030 inch undersize and designed for 6.6L Duramax Diesel engines, reducing friction and oil consumption.

Key Features

Fits 2001-2010 Chevrolet and GMC 6.6L Duramax Turbo Diesel engines.
This is a 0.030 inch undersize piston ring set.
Moly coating on the top ring helps reduce friction and wear.
Designed to minimize engine oil consumption.
Built to meet original equipment requirements for durability.
Mahle OE rings are known for their advanced piston ring technology.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

This Mahle Moly Ring Set, part number 41909.030, includes a complete set of piston rings for your 6.6L Duramax Turbo Diesel engine. These rings are 0.030 inch undersize, meaning they are designed to fit pistons that have been machined down by 0.030 inches during an engine rebuild. Mahle OE rings are built to meet original equipment requirements, focusing on reducing friction and minimizing oil consumption for a longer service life.

When you're rebuilding the top end of your 6.6L Duramax, using well-built piston rings like these Mahle OE moly rings is crucial for proper engine sealing and performance. The moly coating on the top ring helps reduce friction against the cylinder wall, which can lead to improved efficiency and durability. This set is designed to fit a wide range of GMC and Chevrolet trucks, including models like the Silverado 2500 HD, Sierra 3500, and C4500 Topkick, from the early 2000s through 2010.

Proper installation is key with any engine rebuild. Ensure you follow the manufacturer's instructions for ring gap and installation to get the most out of this set. These rings are a solid option for anyone looking to restore their Duramax engine's performance and reliability.