43-18411A 4 - GEAR KIT With Bea QPD=NO

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Part Number
43-18411A 4

Mercury Quicksilver

Upper Gear Kit For use w/ heavy duty 1.50 gears only. The HD 1.50 drive gear has a stepped bearing surface requiring the use of a special bearing kit having 2 different I.D. bearings. Fits MR, Alpha One & SS (1984-1990)
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Mercury Quicksilver 43-18411a 4 - Gear Kit With Bea Qpd=no is equivalent to parts:

Mercury Marine produces the Quicksilver line of parts. Quicksilver parts are made for use on Mercury, Mariner, MerCruiser & Force engines. In addition, they cover many applications by the following engine manufacturers: Chris-Craft, Chrysler, Crusader, Evinrude, Johnson, Honda, OMC, PCM, Suzuki, Volvo Penta, & Yamaha.