2Pack Car Auto 30A 12V SPST Relay & Socket Kit For Electric Fan Fuel Pump Horn 4Pin 4 Wire Relays Heavy-duty impact molded relay socket with 4P 4 WIRES These are heavy duty 30A relays with metal brackets and wiring harnesses .This kit can be used ti install electric cooling fans,Electric fuel pumps,Electric water Pumps,Shaved door handles solenoids,Trunk solenoids,Horns. Interlocking relay sockets Using this kit will eliminate a high voltage drop in the wire,So it allow your components to work properly. Package Include: 2X Pump Relay / 2X Relay Socket Wire