Mallory 9-73610 V4 115-130hp Gear Set Replaces Yamaha 6E5-45631-01Forward, Pinion, and Reverse GearsFits: 115-130 V-4 1984-2006Includes Replacements for Yamaha 6E5-45560-01, fwd 6E5-45551-02, pin 6E5-45571-01, rev Mallory Marine Outboard Gears Mallory Marine gears are made in the USA by a leading OEM manufacturer of spiral bevel gears. ; Manufactured from 8620 bearing quality steel, our gears are fully compatible with their OEM counterparts. ; Precision manufacturing tolerances assure consistent shimming for easy assembly ; Precision heat treat processes provide superior strength and durability;