Product Description
MAHLE 224-3708WR.040 is the RIGHT-bank (.040" over) piston kit with pre-installed rings for the 2006–2010 GM 6.6L Duramax LLY/LBZ/LMM. OE-quality alloy, expansion-controlled clearances, and coated skirts deliver quiet operation, stable ring sealing, and long service life under towing and tune-friendly builds.
Why it wins: factory-matched ring pack, compensated ring grooves for consistent loading, and a friction-reducing skirt coating that helps manage heat and wear during heavy use.
Fitment
- 2006–2010 Chevrolet Silverado/GMC Sierra 2500HD & 3500HD with 6.6L Duramax LLY/LBZ/LMM
- Bank/Side: Right bank (cyl. 2-4-6-8)
- Size: .040" over (requires matching bore/hone)
- Includes: Set of 4 pistons with rings pre-installed, wrist pins, and clips
Cross-Reference / Alternatives (MAHLE on CPP Diesel)
- Right bank – STD: MAHLE 224-3708WR (STD)
- Right bank – .030: MAHLE 224-3708WR.030
- Right bank – .020: MAHLE 224-3708WR.020
- Left bank companion – STD: MAHLE 224-3709WR (.010 shown)
- Left bank – .010: MAHLE 224-3709WR.010
- Left bank – .020: MAHLE 224-3709WR.020
Specifications for Mahle 224-3708WR.040
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3708WR.040 (Right, .040") |
| UPC | 027067914491 |
| GTIN | 027067914491 |
| Engine Family | GM 6.6L Duramax (LLY/LBZ/LMM) – 2006–2010 |
| Bank / Cylinders | Right bank (2-4-6-8) |
| Bore Size | .040" over |
| Includes | (4) Pistons with rings mounted, 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 birth defects or other reproductive harm. Learn more. |
FAQ
Is this priced per piston or for a full bank?
This listing is priced as a complete set of four (4) right-bank pistons with rings, pins, and clips.
Do I need a matching left-bank kit?
If you are rebuilding both sides, pair this with the appropriate left-bank set (e.g., 224-3709WR.010 or .020 as required).
Are the rings installed and ready to go?
Yes—rings arrive pre-installed from MAHLE. Verify end gaps and orientation per MAHLE/GM specs during assembly.
Which Duramax engines does this fit?
It fits 2006–2010 6.6L Duramax LLY/LBZ/LMM platforms on the right bank. Always confirm bore size (.040 over) before ordering.
