Mercury Marine 73345A1 Thrust Washer

Thrust washer 73345A1 is for use with three blade Cleaver or Chopper style stainless steel propellers on 40 hp through 60 hp Mercury and Mariner outboards with standard size gearcases (not Bigfoot). See your owner's manual for installation instructions, the Flo-Torq hub, thrust washers and prop nut part numbers to best fit your engine or drive. Mercury Marine’s passion for performance is matched by your drive for the new, the unknown. Our legendary reliability and durability let you boldly embrace your next adventure—large or small—knowing you’re backed by the best quality design, engineering, and materials.

• Must be installed on prop shaft for correct propeller fit and operation
• Do not operate your engine or drive without the proper thrust washer in place.
• Stainless steel thrust washer is durable and corrosion resistant.
• To aid future propeller removal, grease prop shaft splines with Mercury 2-4-C or Mercury Special Lube 101