Electric Fuel Pump Harness & Relay Wiring Kit. 30 Amp Relay and Circuit Breaker;Ideal for High Amp Draw & High Performance Cooling Fans, Water Pumps & Fuel Pumps; Wiring Harness is 8 Ft. Long; 30 Amp Relay w/ Pre-Wire Connector; 30 Amp Circuit Breaker; 10-18 Ga. Wire; Crimp Terminals & Hardware; Special Relay Connector Has Slots that Allow Additional Relays to Be Nested Together for Clean Installation; 3 Styles of Electric Fan Kits - Available w/ Manual Control, 180°, or 195° Temperature Switch; Simple Easy to Follow Instructions;