Product Description
Upgrade your 6.6L Duramax with INDUSTRIAL INJECTION PDM-362.020 forged MAHLE race pistons. These .020” oversize pistons are engineered for strength under extreme heat and boost. Featuring de-lipped bowls, a thermal barrier crown coating, and a skirt coating, this set delivers durability and performance for high-power builds. Complete with rings, wrist pins, and clips for a professional installation.
Fitment
- 2001–2004 LB7 6.6L Duramax
- 2004.5–2005 LLY 6.6L Duramax
- 2006–2007.5 LBZ 6.6L Duramax
- 2007.5–2010 LMM 6.6L Duramax
- 2011–2016 LML 6.6L Duramax
What’s Included
- (8) Forged MAHLE pistons — .020” oversize
- Rings, wrist pins, and clips
Key Features
- Forged construction for race-level strength
- De-lipped bowls to reduce cracking risk
- Thermal barrier crown coating for heat management
- Skirt coating to lower friction and scuffing
- Available with .100” fly-cut valve reliefs for high-lift cams
Recommended Parts (Internal Links)
- ARP 230-4201 Head Stud Kit (01–16 Duramax)
- MAHLE HS54580C Head Gasket Set (11–16 LML)
- S&S Diesel LML CP3 Conversion Kit (2011–2016)
- Industrial Injection PDM-362.040 (.040 Over) Pistons
- Shop All Duramax Pistons & Rings
Helpful Notes
- Requires professional machine work for .020” overbore.
- Check piston-to-wall clearance, ring gap, and valve clearance during build.
FAQ
Are these pistons drop-in?They include rings, pins, and clips, but require a .020" overbore and precision measurements for correct clearance.
Do I need the .100” valve relief option?Yes if you’re running a high-lift cam or tight piston-to-valve clearance. Otherwise standard pistons work fine.
What coatings are applied?A thermal barrier crown coating protects from heat, while the skirt coating reduces friction and wear.
What supporting mods are recommended?Head studs, proper gaskets, upgraded fuel system, and for LML trucks, a CP3 conversion kit.
