HEAVY DUTY LONG WIRES. To safely, easily wire your pump directly to your battery, ensuring your high-pressure fuel pump is the voltage it needs. Designed specifically to prevent voltage at the fuel pump to maintain constant fuel pump pressure and to prevent fuel pump amperage overloads from damaging the vehicle's electrical system EASY TO INSTALL. All wires are clearly labeled and color-coded. And an easy-to-follow wiring diagram is included in the package. 10 feet 10 gauge RED wire to +12V battery, 6 feet 10 gauge ORANGE wire to fuel pump, 2 feet 16 gauge BROWN wire to 12V trigger switch, 4 feet 16 gauge BLACK wire to chassis ground UNIVERSAL FIT 12V SYSTEM. This will work on anything that is 12V activated that does not exceed a 40 amp continuous amperage draw WATERPROOF. 40 Amp Heavy duty waterproof relay and inline waterproof fuse box THIS FUEL PUMP RELAY KIT INCLUDES EVERYTHING YOU NEED. Colour:As Shown Material:ABS Package Contents: 1x 40 Amp heavy duty waterproof relay 1x relay base with wire harness 1x inline waterpro of fuse holder 1x 30 Amp fuse 2x relay mount screws 3x heat shrinkable ring terminals 2x wire connectors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.