inIncrease fuel flow on your 6.7L Cummins with our 1 2 in in high flow big line kit. This kit eliminates the restrictive factory line from the fuel filter housing to the injection pump with our larger hose and fittings. Kit Includes 1 2 in in push lock hose 1 2 in in quick disconnect feed fitting CP3 feed fitting Fitment MY 2010 2018 Cummins 6.7L in