Product Description
MAHLE 224-3709WR.020 is the left-bank (.020" over) piston kit with rings for the 2006–2010 GM 6.6L Duramax (LLY/LBZ/LMM). These OE-quality pistons feature coated skirts, expansion-controlled alloy, and factory-mounted ring packs for clean burn, oil control, and long service life under towing or tuned power.
Fitment
- 2006–2010 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD, 6.6L Duramax LLY/LBZ/LMM
- Bank/Side: Left (driver side)
- Oversize: .020" (≈0.50 mm)
- Includes: Set of 4 pistons with rings pre-installed, wrist pins & pin clips
Cross-Reference / Alternatives (MAHLE on CPP Diesel)
- Left bank, STD: MAHLE 224-3709WR (STD)
- Left bank, .010: MAHLE 224-3709WR.010
- Left bank, .030: MAHLE 224-3709WR.030
- Left bank, .040: MAHLE 224-3709WR.040
- Right-bank companion, .020: MAHLE 224-3708WR.020
Specifications for Mahle 224-3709WR.020
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3709WR.020 (Left, .020") |
| UPC | 027067914514 |
| GTIN | 00027067914514 |
| Bank / Cylinders | Left bank (driver side) — set of 4 |
| Bore Size | .020" over (≈0.50 mm) |
| Rings | Pre-installed (mounted) |
| Includes | (4) pistons, rings, wrist pins & pin clips |
| Shipping | Free Shipping (ground) |
| Package Dimensions | Approx. 15" L × 11" W × 6" H |
| 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 for a complete set of four (4) left-bank pistons with rings, pins, and clips.
Will it fit my 2006–2010 Duramax?
Yes—LLY, LBZ, and LMM engines. Verify you need the Left bank and the .020" oversize your machine shop specifies.
Do the rings come pre-installed?
Yes, MAHLE supplies these with mounted ring packs plus wrist pins and clips.
Do I need the right-bank kit too?
For a complete engine rebuild, order the matching Right bank .020 set (224-3708WR.020) as well.
