A-B1592860-AI PIN-LOCATINGOne New Aftermarket Replacement Locating Pin Fits Briggs and Stratton Engines This locating pin (also listed as PIN LOCATING) is an engine alignment component used to ensure precise positioning of mating engine parts such as the crankcase cover, sump, or other internal assemblies during assembly and service. Proper seating of this pin maintains critical alignment tolerances and helps prevent wear or damage caused by misalignment during operation.