Product Description
MAHLE 224-3709WR.030 is the left-bank (.030" over) piston kit with rings for the 2006–2010 GM 6.6L Duramax LLY/LBZ/LMM. OE-grade cast pistons with coated skirts and compensated ring grooves deliver proper ring loading, tight clearances, and clean oil control under load—ideal for stock and work builds.
Why it wins: bank-specific fit, pre-installed rings for faster assembly, and MAHLE’s proven expansion-controlled design for quiet operation and long service life.
Fitment
- 2006–2010 Chevrolet/GMC 2500HD & 3500HD with 6.6L Duramax LLY/LBZ/LMM
- Bank/Side: Left (driver) bank – set of four pistons
- Bore Size: .030" over
- Includes: (4) pistons with pre-installed rings, wrist pins & clips
Cross-Reference / Alternatives (MAHLE on CPP Diesel)
- Matching right bank (.030): MAHLE 224-3708WR.030
- Left bank – .010: MAHLE 224-3709WR.010
- Left bank – .020: MAHLE 224-3709WR.020
- Left bank – .040: MAHLE 224-3709WR.040
Specifications for Mahle 224-3709WR.030
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3709WR.030 (Left bank) |
| UPC | 027067927958 |
| GTIN | 00027067927958 |
| Engine / Years | GM 6.6L Duramax LLY/LBZ/LMM — 2006–2010 |
| Bore Size | +.030" (oversize) |
| Bank/Side | Left (driver) bank — set of 4 |
| Includes | (4) Pistons with pre-installed rings, wrist pins & clips |
| Shipping | Ground service; Free Shipping eligible—rates shown at checkout |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. Learn more. |
FAQ
Is this listing priced per piston or for a set?
This CPP Diesel listing is for a complete set of four (4) left-bank pistons with rings, pins, and clips.
Do I need a matching right-bank kit for a full rebuild?
Yes. For a full .030" over rebuild, pair this left-bank kit with MAHLE 224-3708WR.030.
Are the rings pre-installed and do they need to be gapped?
Rings are pre-installed from MAHLE; always verify and set end gaps per MAHLE/GM specifications during assembly.
