Autometer 4412 Mechanical Ultra-Lite Fuel Pressure Gauge 0-100PSI. Traditional incandescent lighting illuminates around the perimeter of the dial. AutoMeters race proven mechanical instruments provide trusted accuracy while being simple to install. No electrical system required for gauge operation - compatible with every street or race vehicle. Gauge kit includes, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation.Gauge threaded for -4AN, allowing an easy installation into the fuel system. We reserves the right to cancel any listing which is not paid within a reasonable time. Alternately, you may send us a message and we'll provide the return information.