Industrial Injection 2004.5-2005 LLY Duramax Premium Stock Plus Cylinder Heads (RH & LH Set)2004. 5 2005 LLY Duramax Premium Stock Plus Cylinder Heads (RH & LH Set) Restore factory performance and long term reliability to your 2004. 52005 LLY Duramax 6. 6L with these stock remanufactured cylinder heads. Built to OE specifications and professionally remanufactured, these heads are designed to provide dependable performance for stock rebuilds and mild performance applications. Each cylinder head is thoroughly inspected, pressure tested,

258 Intake /

Engine repairs

8 Injector Return Line Banjo Washers

Compressor Recirculation Valve Kit

743250-5004S

Part Number: 0986437422-IIS

Front Crank Seal

Wastegate Hose Kit

1825260C91 HP004X

Improved airflow and engine efficiency

Performance Engineered High Flow Design

Fits 2003 - 2021 Cummins Oil Caps