Product Description
MAHLE 224-3451WR Piston With Rings — Standard size, Left bank for the 2001–2005 GM 6.6L Duramax LB7/LLY. Built to OE specs with a lightweight, expansion-controlled design to maintain factory performance and durability.
- Engine: GM 6.6L Duramax LB7/LLY (2001–2005)
- Bank/Side: Left bank (bank-specific piston orientation)
- Compression: Standard
- Sold as: Set only.
- GTIN/UPC: 027067914194
Fitment
- 2001–2005 Chevrolet/GMC 6.6L Duramax LB7 & LLY (VIN codes 1 and 2)
Cross Reference & Related
- Matching right-bank piston (STD): MAHLE 224-3452WR
- Left-bank oversizes: 224-3451WR.020, 224-3451WR.040
- Right-bank oversizes: 224-3452WR.020, 224-3452WR.040
- Piston ring sets (LB7/LLY): MAHLE 41909 (STD), 41909.01 (.010), 41909.02 (.020), 41909.03 (.030), 41909.04 (.040)
FAQ
Is this the correct piston for my 2001–2005 Duramax?
Yes. It’s the standard-size left-bank piston for LB7/LLY engines.
How many do I need?
Duramax pistons are bank-specific. The left bank uses a set of four pistons; some retailers list price per piece while selling as a set of 4.
Does this include piston rings?
Yes, this part is supplied with rings installed.
What rings match this piston?
Use MAHLE 41909-series rings in the same size (STD, .010, .020, .030, .040).
