Mahle 2243452WR OE Diesel Piston Kit for 2001-05 GM Chevy/GMC 6.6L Duramax LB7

Vehicle Fitment

• 2001-2005 Chevy Silverado 2500/3500 & GMC Sierra 2500/3500 (6.6L Duramax LB7/LLY Diesel, Right Bank)

Features

• OE-quality cast aluminum piston engineered by Mahle
• Designed specifically for right bank of 6.6L Duramax LB7/LLY engines
• Includes pre-installed piston rings for ready-to-assemble installation
• Maintains factory compression height and stroke dimensions
• Precision-machined ring grooves ensure proper oil control and sealing
• Expansion-controlled design improves durability under diesel operating loads
• Optimized crown geometry for efficient combustion and reduced emissions
• Meets or exceeds OEM specifications for heavy-duty performance

Specifications

• Part Number: 2243452WR
• Engine: 6.6L Duramax LB7/LLY Diesel
• Bore Diameter: 4.055 in (103.00 mm)
• Stroke: 3.897 in (99.01 mm)
• Compression Height: 1.961 in (49.81 mm)
• Material: Cast Aluminum Alloy
• Bank: Right (R)
• Configuration: Standard Bore, Press-Fit or Floating Pin

Included Components

• 4x Mahle 2243452WR Pistons (Right Bank)
• 4x Pre-installed Piston Ring Sets
• 4x Wrist Pins
• 4x Retainer Clips

Product Description

The Mahle 2243452WR piston kit provides a premium OE-grade replacement for the right bank of 6.6L Duramax LB7 and LLY diesel engines found in 2001-2005 Chevy Silverado and GMC Sierra 2500/3500 HD trucks. Engineered to match factory dimensions and specifications, this piston kit restores compression integrity and combustion efficiency to original levels.

Constructed from high-strength cast aluminum alloy, the pistons feature precision-machined ring lands and pre-fitted rings for simplified installation. The design ensures improved durability under high-load diesel operation while maintaining smooth performance and optimal oil control. Each piston meets Mahle's rigorous OE manufacturing standards, ensuring consistent quality and long service life.

This kit covers only the right bank of the engine (bank "R"). The matching left bank requires the corresponding Mahle part number. Fitment is confirmed through 2005 model year; 2006 and later Duramax variants (LBZ, LMM, LML) are not confirmed at the time of listing.