Product Description
MAHLE 42160 is the complete standard-bore piston ring set for the 2011–2016 GM 6.6L Duramax LML/LGH. Built to OE specs and pre-lapped for quicker seating, this full engine set restores compression, oil control, and long-term durability.
- Bore (Std): 4.055" (≈103.0 mm)
- Ring widths: 3.0 mm top / 2.0 mm second / 3.0 mm oil
- Top ring: Stainless steel, gas-nitrided (RFK-12NG)
- Second ring: Cast iron, chrome-faced (BT-10UF)
- Oil ring: Steel, gas-nitrided (MCL-42NGRW)
- Sold as: complete engine set
- GTIN/UPC: 027067864079
Fitment
- 2011–2016 Chevrolet Silverado 2500HD/3500HD, 6.6L Duramax LML (VIN 8)
- 2011–2016 GMC Sierra 2500HD/3500HD, 6.6L Duramax LML (VIN 8)
- 2011–2016 GM 6.6L Duramax LGH (VIN L) applications
Cross Reference / Related Sizes
- MAHLE: 42160 (Std), 42160.01 (.010"/0.25 mm), 42160.02 (.020"/0.50 mm), 42160.03 (.030"/0.75 mm), 42160.04 (.040"/1.00 mm)
What’s Included
Complete ring set for all eight cylinders (top, second, and oil control assemblies).
FAQ
Will these rings fit my LML or LGH?
Yes—this set is the correct standard-bore ring pack for 2011–2016 6.6L Duramax LML/LGH engines.
Are the rings pre-lapped?
Yes. MAHLE supplies these pre-lapped to speed up seating during break-in.
What bore size is “standard” on LML/LGH?
Standard bore is 4.055" (≈103.0 mm) on these engines.
Do I need to check ring gaps?
Always verify end-gaps to your build and intended use; file-fit as needed and follow OEM/MAHLE specs.
Do these come with pistons?
No—this is the ring set only. For pistons with rings, see MAHLE piston kits for 2011–2016 Duramax.
