What does the 0.040 inch sizing mean for this piston set?

The 0.040 inch sizing indicates that these pistons are slightly larger than the original factory pistons. This is common when rebuilding an engine where the cylinder bores have been worn or honed out. You should measure your cylinder bores to confirm this oversize is appropriate for your engine's condition.

What is included in this piston set?

This set includes four pistons for the right bank, with the piston rings already installed. It also comes with the necessary piston pins and clips, making it a ready-to-install package for your engine rebuild.

Are these pistons suitable for all 6.6L Duramax engines from 2006-2010?

This set is specifically for the 6.6L Duramax diesel engine found in 2006-2010 Chevrolet and GMC trucks. It is for the right bank only and is 0.040 inches oversized. Always verify your engine's specific RPO code (like LMM or LBZ) and cylinder bore measurements to ensure compatibility.

Mahle OE GM 6.6L Duramax Piston Set w/ Rings 2243708WR040

Name: Mahle OE GM 6.6L Duramax 06-09 LMM LBZVin 26D .040 Right Bank Only Piston With Rings Set (Set of 4)
Brand: Mahle OE
SKU: mahle-oe-mahle-oe-gm-6-6l-duramax-06-09-lmm-lbzvin-26d-040-right-bank-only-pisto-t14-52900
Price: 597.39 USD
Availability: BackOrder

Mahle OE GM 6.6L Duramax 06-09 LMM LBZVin 26D .040 Right Bank Only Piston With Rings Set (Set of 4)

$597.39

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 GM 6.6L Duramax 06-09 LMM LBZ .040 right bank piston set with rings. Features compensated ring grooves for improved oil control.

Key Features

Fits 2006-2010 Chevrolet and GMC 6.6L Duramax diesel trucks.
Set includes 4 pistons for the right bank, machined 0.040 inches oversized.
Features compensated ring grooves for proper ring loading and oil control.
Expansion-controlled design reduces engine noise and wear.
Piston rings are pre-mounted for easier installation.
Includes piston pins and clips.

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Will this fit your vehicle?

Product Details

If you're rebuilding the top end of your 2006-2010 GM truck with a 6.6L Duramax LMM or LBZ diesel engine, Mahle OE pistons are a solid choice. This set is specifically for the right bank and is machined 0.040 inches oversized, ready to replace worn pistons and restore proper compression and oil control. Mahle is a major OE supplier, meaning these pistons are built to the same standards as the ones that came in your truck from the factory.

What sets these pistons apart is their attention to detail in design. They feature compensated ring grooves, which help ensure the piston rings are loaded correctly. This is crucial for both effective oil control and maintaining good compression. Additionally, these pistons have an expansion-controlled design. This allows for tighter clearances when the engine is cold, which reduces noise and wear, and also helps keep emissions in check and further improves oil management. Mahle includes the piston pins and clips, and the rings come pre-mounted, so you can get straight to installation without sourcing extra small parts.

This set includes four pistons for the right bank, each machined 0.040 inches larger than stock. Make sure to verify your engine's VIN code (26D for LMM) and confirm that you need the oversized pistons for your specific rebuild. It's always a good idea to check your cylinder bore measurements before ordering to ensure the 0.040" oversize is appropriate for your engine's condition.