What are the key features of the MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY?

Lightweight, expansion-controlled design maintains proper piston-to-wall clearance; Matched ring set included for simplified installation and reliable sealing; Bank-specific left and right versions available to match engine side

SKU #: MAH-224-3451WR.020 MPN #: 224-3451WR.020

MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY

$597.25

Get 597 points in loyalty rewards

MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY

Description Overview

Rebuilding your 6.6L Duramax? These MAHLE pistons with rings deliver the OE-quality fit, durability, and performance you need for a dependable engine rebuild. Designed for engines that have been machined .020" over, this piston assembly restores proper compression, sealing, and reliability while maintaining the precision MAHLE is known for. Whether you're replacing a damaged piston or completing a full engine overhaul, this piston is built to provide long-lasting performance in demanding diesel applications. Manufactured to strict OE specifications, each piston features MAHLE's lightweight, expansion-controlled design to maintain proper piston-to-wall clearances and reduce wear throughout the engine's life. Every piston includes a matched ring set for simplified installation and reliable sealing. Since the Duramax uses bank-specific pistons, simply choose the left-bank or right-bank version to match your engine during ordering.

Product photos may not match the selected option. Please confirm your choice before adding to cart.

Enter your zip and we'll see if installation is available.

Request quotes from local installers at checkout
Compare options and choose the best fit for your install

Free Customer Loyalty Program

No Salesmen, Just Enthusiasts

MAHLE piston set with rings for engines machined .020" oversize, providing OE-quality fit and durability for a diesel engine rebuild.

Fits: 2001-2005 GM 6.6L Duramax LB7/LLY
Brand: MAHLE
Best for: Engine rebuilds requiring .020" oversize pistons
Key features: Lightweight, expansion-controlled design maintains proper piston-to-wall clearance
Matched ring set included for simplified installation and reliable sealing
Bank-specific left and right versions available to match engine side
Key specs: .020" oversize

Rebuilding your 6.6L Duramax? These MAHLE pistons with rings deliver the OE-quality fit, durability, and performance you need for a dependable engine rebuild. Designed for engines that have been machined .020" over, this piston assembly restores proper compression, sealing, and reliability while maintaining the precision MAHLE is known for. Whether you're replacing a damaged piston or completing a full engine overhaul, this piston is built to provide long-lasting performance in demanding diesel applications.

Manufactured to strict OE specifications, each piston features MAHLE's lightweight, expansion-controlled design to maintain proper piston-to-wall clearances and reduce wear throughout the engine's life. Every piston includes a matched ring set for simplified installation and reliable sealing. Since the Duramax uses bank-specific pistons, simply choose the left-bank or right-bank version to match your engine during ordering.

Vehicle Fitment

2001-2005 GM 6.6L Duramax LB7/LLY

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

About MAHLE

MAHLE's reputation speaks for itself. As a leading global supplier of high-quality engine components, trusted in both passenger and commercial vehicles. Their parts, such as pistons, gaskets, and engine components, keep diesel engines running stronger for longer, making them a go-to choice for heavy-duty trucks and high-performance applications.

As a leading global development partner for the automotive and engine industry, MAHLE offers unique systems competence in the internal combustion engine and engine peripherals. MAHLE Motorsports has a drive towards performance by building engine components, such as the MAHLE MonoTherm pistons, to distinctly service high-performance diesel engines. The MAHLE division is most notable for building quality OE replacement gasket sets that are a cut above the rest.

Founded in 1920, MAHLE has been shaping the future of mobility for over a century. With 22 North American factories supplying OEMs across passenger cars and heavy vehicles, and 135 factories worldwide supported by 11 technology centers and more than 5,000 engineers, MAHLE has built a reputation for innovation, durability, and expertise. Today, one in every two vehicles globally features MAHLE components, a testament to their long-standing commitment to quality and reliability.

Video

DIESEL TALK | MAHLE PISTONS!

Building your engine the right way starts with the right components. In this episode, we're taking a look at MAHLE Pistons and why they're one of the most trusted choices for diesel engine rebuilds and performance applications. With over a century of engineering experience, MAHLE has built a reputation for producing high-quality pistons that deliver exceptional durability, precise fitment, and reliable performance. Whether you're restoring a stock engine or building a high-horsepower diesel, MAHLE pistons are designed to handle the demands of everyday driving, towing, and performance use. When reliability matters, MAHLE is a name trusted by professional engine builders and manufacturers around the world.