Mercruiser Alpha 1 roller bearing 1.50 gear ratio

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Mercruiser Alpha 1 roller bearing 1.50 gear ratio

Tapered assembly P/N 21560 used with
1.50 ratio gear set in upper gearcase

Also included in 1.50 ratio upper gear set
inner cone 24780 outer race 24720
OEM 31-32573A1
Alpha 1 exploded view drawings
Also compatible with R/MR

21560 bearing for 1.50 gear ratio

P/N 21560 OEM 31-32573A1 $47.99

Customer who bought P/N 21560 also purchased:

V8 43-18410A4 11210 18-2201

P/N 11210 - V8 gear set replaces 43-18411A2 and Sierra 18-2201

Includes driven bearing 31-32573A1
1.50 ratio
20/22 pinion and driven gear tooth count
Serial numbers 3106717 to 0K999999
Years 1970 to 1997.
$444.95

87500 GLM aftermarket Mercruiser parts for lower gearcase

P/N 87500 GLM upper unit seal kit for Mercruiser and Alpha 1 Generation 1, 1970 - 1990 models. Replaces Mercury 26-32511A1. $24.95