Mercury – Oil Pressure Gauge 0–100 PSI | Dual Scale | White Face | 2-1/8" (52 mm) | 79-8M0052869Mercury Oil Pressure Gauge 0100 PSI Dual Scale White Face 2 1 8" (52 mm) 79 8M0052869 Overview The Mercury Oil Pressure Gauge (79 8M0052869) gives you a clear, accurate reading of your engines oil pressure so you can spot issues before they become problems. It features a dual scale display showing both PSI and bar, making it easy to read in either English or Metric units. The white face, black numerals, and glass lens provide crisp visibility in all