Sterling 0-80 Psi Oil Pressure Gauge | Sierra 63479P Sierra Sterling 0-80 Psi Oil Pressure Gauge 63479P 2 in. gauge displays the oil pressure of a marine engine. Sterling 0-80 PSI Oil Pressure Gauge 2 in. diameter 0-80 PSI range Ideal for outboards and stern drives Sterling series Brushed aluminum dial Black graduations/numerals Black pointer Scratch resistant curved glass lens Polished stainless steel, near-flush bezels Perimeter lighting US and metric scales