GM LT1 High Pressure Fuel Pump HPFP 12728002 L83 L86

New, genuine GM LT1 HPFP. Fits any naturally aspirated Gen V LT engine. 

Part number 12728002 (Supercedes old number 12711662) 

GM recommends replacement of feed line 12673077 when servicing HPFP, add in the drop down if desired. 

****IF YOU HAVE A LATER 2018+ LT1/L8x THEN YOU MAY NEED AN ADAPTER HARNESS, WE HAVE THEM AVAILABLE**** 

****IF RUNNING AN AFTERMARKET CAM WITH A HIGHER % FUEL LOBE YOU MAY ALSO NEED TO SHIM THE CAM FOLLOWER THAT PUSHES ON THE HPFP, WITH A LASH CAP****