313339 OMC NUT

Original equipment pinion and driveshaft nut for OMC Johnson/Evinrude outboard motors. Fastens the driveshaft and pinion gear assembly within the gearcase to ensure proper torque and load distribution. This precision fastener prevents shaft movement and misalignment during operation. Available from major marine parts suppliers including Walmart and specialty retailers. Essential component during gearcase assembly, rebuild, and service procedures on Johnson/Evinrude motors.