Fuse/relay module that is used on all of our Stand-alone Wiring harnesses that require a bit more protection from the elements.Off road mudders, sand rails, boats, etc. We have pre-wired it for use with almost any engine harness.Package includes: Ignition Fuses Battery Constant Fuses Relays ECU Transmission Injectors Coil(s) MAF/O2 Sensors 3 Empty ECU / Diagnostic Port Fuel Pump 2 Electric Fans Ignition Power Fuel Pump (20 amp) 2 fans (30 amp) Package also contains Diagnostic Port, Extra fuses,Power eyelet, and a roll of harness tape.For the Do-It-Yourselfer:A fuse/Relay module that contains relays and wiring for Electric Fans and Fuel Pump.8 ignition power circuits and a battery power circuit All labeled with instructions.Threaded 6mm x 1.0 nut plates can be moved to mount from 2 available positions.