Mercury Part Number 1643-6459A10

This sale is for one new in the box Quicksilver short shaft lower unit gear case for Mercury outboard boat motors.

This is a new old stock original Mercury Quicksilver part not aftermarket.

There may be some shelf wear/scratches in the paint from sitting so long in storage, but other than that it is unused and in perfect condition.

Driveshaft measures 18" from base of water pump to tip of driveshaft and 18 1/2" to the top of the preload pin.

Prop Shaft 13 Spline
Driveshaft 11 Spline

This lower unit gear case housing fits some short shaft Mercury outboards from 1976-1979 with 40 and 50 hp.

Related part numbers
7406A34->9539A4
7406A14->7406A34
6459A10->7406A14


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


Feel Free To Ask Questions.

We offer the most used Stern Drive & Outboard parts in Wisconsin!

We accept Visa, Master Card, Discover Card, and Pay Pal.

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