OER Series Fuel Injector Line (Cylinders 4 and 5) 2001-2004 GM 6.6L Duramax LB7 XDP Xtreme Diesel Performance Fuel Delivery~Fuel Injectors - Diesel The XDP head studs are

The XDP head studs are constructed from high-quality 8740 Chrome Moly that also includes a proprietary element added for superior strength and durability

For KF-1043 and KF-1043D

7F DCR Conversions for 2011-2016 trucks to ensure a trouble-free install

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4L Power Stroke on the road

OER Series Fuel Injector Line (Cylinders 4 and 5) 2001-2004 GM 6.6L Duramax LB7 XDP Xtreme Diesel Performance Fuel Delivery~Fuel Injectors - Diesel The XDP head studs areThe XDP OER Series Fuel Injector Line (Cylinders 4 and 5) XD596 provide your 2001 2004 GM 6. 6L Duramax LB7 with high quality fuel lines. As time passes, factory injector lines can corrode and become a point of failure. Also, in order to avoid the risk of contamination, it is advisable to replace the fuel lines when replacing your fuel injectors. XDP high pressure fuel lines are OE style replacements that match the fit and function of your Duramax's