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Used Outboard Parts & Fresh Water Sterndrive Parts

1682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:1
1682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:11682-821306A17 Mercury Mariner Outboard 40 50 HP 20" Lower Unit Gear Case 2:1
$1,400.00
Mercury Part Number 821306A17                                 

This sale is for one reconditioned Mercury and Mariner Outboard lower unit gear case.

This gear case has been fully disassembled and inspected.  The gears are in like new condition.  This is a fresh water part and is not corroded or pitted.

It has been pressure tested and held at 17 psi. 

This is for use with 20" long shaft models.  The driveshaft measures 24 7/8" from the top of the case to the tip of the drive shaft.

The prop shaft has 13 splines and the drive shaft has 14 splines.

The pinion gear has 13 teeth.  The forward and reverse gears both have 26 teeth. 

2:1 ratio.

You will receive this exact Mercury Outboard lower unit gear case that you see pictured.


Please check your part numbers to ensure a proper fit for your application.

Thank you for shopping at our store.


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