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Shop / Engine / MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY
MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY
MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY photo 1
MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY photo 2
MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY photo 3
MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY photo 4
MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY photo 5
MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY photo 6
MAHLE

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

MPN: MAH-224-3451WR.020
Tow PigStreet Performance
$597.25
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Fitment sensitive
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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.

Warranty
Warranty based on supplier terms

Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.

Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Diesel Power Products warranty policyView complete warranty

Product conditions

Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.

Professional installation is recommended.

Return eligibility
Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
Return window
Not stated for this product; see supplier terms
Restocking fee
See supplier terms; no product-specific fee stated
Return shipping
Based on the supplier’s return policy; see terms
Made to order
No
Backorder status
Not backordered
Cancellation
Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
Warranty provider
Diesel Power Products
Warranty duration
Product-specific duration not stated; see supplier terms
Compatibility
Listed for specific vehicle configurations
Legal use
Street legal
Processing estimate
3–7 business days supplier processing
Shipping
Shipping calculated at checkout
Signature
No signature requirement
Supplier
Diesel Power Products

Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.