Firewall Grommet 8-12 Gauge Firewall Grommet - 8-12 Gauge Wire - 0.313 in ID - Plastic - Black - Each

Firewall Grommet 0-1 Gauge Firewall Grommet - 2-1 Gauge Wire - 0.725 in ID - Plastic - Black - Each

Gauge Grommet - 2-1/16 Gauge Mounting Grommet - 2.250 Mounting Hole - Rubber - Black - 2-1/16 in Gauges - Each

Firewall 1 Sensor Mount for SMI Pressure Gauges Firewall Junction - 1 Hole - 1/8 in NPT - Aluminum - Natural - Each

Wiring Kit 4 Gauge Wiring Kit - Ignition / Battery - Battery Cable / Battery Disconnect / Solenoid / Switch Panel / Terminals - 4 Gauge - Kit

St. #4 Gauge Fitting Fitting - Adapter - Straight - 1/8 in NPT Female to 4 AN Male - Steel - Natural - Each