Replacement fuel pump for discontinued Mercruiser pump found on Cool Fuel systems. Cool Fuel Electric Fuel Pump | MMD Powerline 108077 Replaces cool fuel pump discontinued by Mercury service bulletin 2004-05R1 One end is threaded with the other end non-threaded Fits many V6 & V8 Mercruiser applications Does not include o-rings Replaces Mercury 861156A1 & 807949A1 Replaces Power Solutions 108142 Replaces Mercury 861156A1 Replaces MMD Powerline 108077