Piston Ring Set

Features:

• Fits 2001–2010 6.6L Duramax diesel engines
• .020 oversized piston ring set for rebuilds
• Pre-lapped rings for immediate seating
• No break-in period required
• Meets or exceeds factory specifications
• Restores compression and oil control
• Ensures OEM-level engine performance
• Ideal for stock or mild performance rebuilds
• Manufactured by Mahle for trusted reliability
• Designed for complete cylinder coverage
• Helps reduce blow-by and oil consumption
• Precision-engineered for consistent sealing

Get Your Duramax Breathing Right From The First Fire Up

When it's time to rebuild your 6.6L Duramax, you want components that go in clean, seal fast, and perform like they were factory-fresh. That’s exactly what the Mahle 41909 .020 Piston Ring Set delivers. This complete set is designed for 2001–2010 GM Silverado and Sierra 2500HD/3500HD models and built to meet OEM specifications for reliability and fit. What sets this kit apart is that the rings come pre-lapped, which means they seat immediately and don’t need a long, cautious break-in period. It’s a straightforward install that lets you get back to business with confidence. Whether you're doing a basic refresh or a more serious rebuild, these rings restore your compression and oil control so your engine can breathe and burn clean again. If you want the kind of durability that matches your Duramax’s work ethic, this Mahle set is a smart choice that won’t let you down.

Precision Matched Rings For A Cleaner Stronger Seal

The Mahle 41909 .020 Piston Ring Set is engineered to exacting factory specifications to ensure dependable sealing and optimal performance in 6.6L Duramax engines from 2001 to 2010. This .020 oversized set is intended for engines requiring a slightly larger fit during rebuilds, offering complete piston-to-wall contact and consistent combustion chamber sealing. Mahle pre-laps these rings during manufacturing, eliminating the need for a traditional break-in process and ensuring they seat quickly after startup. Each ring in the set is crafted to deliver excellent oil control and reduce blow-by, helping to maintain compression, improve fuel efficiency, and cut down on oil consumption. The complete kit includes rings for all cylinders, making it ideal for full engine rebuilds. Whether you're bringing an older Duramax back to life or fine-tuning a workhorse for another 100,000 miles, this set provides the precision and reliability that engine builders trust. Backed by Mahle’s legacy of OE-level quality, these rings are built to perform under pressure.

Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2001–2010 GM Silverado and Sierra 2500HD/3500HD with 6.6L Duramax engines
• .020 oversized piston rings for rebuild applications
• Rings come pre-lapped for immediate seating
• No break-in period required after installation
• Designed to meet or exceed OEM specifications
• Restores compression and oil control in worn engines
• Ideal for full engine rebuilds or cylinder overhauls
• Reduces oil consumption and blow-by
• Manufactured by Mahle, a trusted OE and performance brand
• Provides consistent sealing and long-term reliability