Autometer Stack 52mm mechanical oil pressure gauge, 0–100 PSI, black face, 1/8" NPTF male connection. Part of the Stack Instruments series designed for vehicles with no or low-powered electrical systems, the mechanical gauge uses tubing for direct reading, features a bronze Bourdon tube with 270° sweep and operates without 12V power for magneto or atypical electrical installations.
Autometer Stack 52mm 0-100 PSI 1/8in NPTF (M) Mechanical Oil Pressure Gauge - Black