






MAHLE .020" Piston Set With Rings 01-05 GM 6.6L Duramax LB7/LLY
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
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Ships directly from the supplier. The final shipping cost will be shown before payment.
- Ships from MAHLE
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.
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.
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 warrantyProduct 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.