HEAVY DUTY LONG WIRES. To safely, easily wire your pump directly to your battery, ensuring your high-pressure fuel pump is getting the voltage it needs. Designed specifically to prevent voltage drops at the fuel pump to maintain constant fuel pump pressure and to prevent fuel pump amperage overloads from damaging the vehicle's electrical systemEASY 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 groundUNIVERSAL FIT 12V SYSTEM. This will work on anything that is 12V activated that does not exceed a 40 amp continuous amperage drawWATERPROOF. 40 Amp Heavy duty waterproof relay and inline waterproof fuse boxTHIS FUEL PUMP RELAY KIT INCLUDES EVERYTHING YOU NEED. Package includes easy to follow wiring diagram, 40 Amp heavy duty waterproof relay, relay base with wire harness, inline waterproof fuse holder, 30 Amp fuse, 2 relay mount screws, 3 heat shrinkable ring terminals, and 2 wire connectorsCondition: 100% Brand NewVoltage: Universal, works with any 12V systemRelay: 40AFuse: 30AHow to use: Wiring diagram included in package10 Feet 10 Gauge RED Wire - to +12VDC6 Feet 10 Gauge ORANGE Wire - to Fuel Pump2 Feet 16 Gauge BROWN Wire - to 12V Trigger Switch4 Feet 16 Gauge BLACK Wire - to Chassis GroundColour:As ShownMaterial:ABSPackage Contents:1x 40 Amp Heavy Duty Waterproof Relay1x Relay Base with Wire Harness1x Inline Waterproof Fuse Holder5x 30 Amp Fuse2x Relay Mount Screws3x Heat Shrinkable Ring Terminals2x Heat Shrinkable Wire ConnectorsOnly 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.