Powerstroke Products O-Ring Heads NEW 2003-2007 Powerstroke Dowel size:18mm Kit Includes the following for

Kit Includes the following for 03-07 Cummins

These injectors are roughly 200HP over stock

Powerstroke Products includes the correct head gasket and fire rings for installation while backing their head with a 1 year unlimited mileage warranty

If you’re making power with your Cummins and pushing 50+lb of boost or running over 3

5-2018 Cummins with a 6-Speed G56 Transmission

Powerstroke Products O-Ring Heads NEW 2003-2007 Powerstroke Dowel size:18mm Kit Includes the following forFEATURES: Loaded Head For 18mm Dowels Machined for O Rings New Valves, Springs, & Seals 1 Year Unlimited Mileage Warranty Sold individually We also offer studs and head gaskets! (Sold separately) ATTENTION: 2003. 5 2006. 5 are 18mm heads, 2006. 5 2007 are 20mm heads.