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Mercury Lower Unit for 40-50 HP Outboards - Brand New
For sale is a brand new Mercury Lower Unit suitable for 40-50 HP outboard motors. This unit is in its original factory plastic, ensuring it is in perfect, brand-new condition. Foam is wrapped around the plastic for additional protection.
Mercury Part Number: 1643-6459A11
Superseded Part Numbers:
- 7406A35 -> 9539A5
- 7406A15 -> 7406A35
- 6459A11 -> 7406A15
This sale is for one brand new in box, old stock, long shaft Mercury Outboard lower unit. It is an original factory Mercury part, not an aftermarket reproduction.
Key Specifications:
- Drive Shaft Length: Approx 21 5/8" from the tip to the base of the water pump, and 22 1/4" to preload pin
- Drive Shaft Splines: 11 splines
- Prop Shaft Splines: 13 splines
This lower unit fits certain Mercury outboards from 1976-1989 with 40 and 50 HP, 2 and 4 cylinder models. Please verify your part numbers to ensure compatibility.
Feel free to ask questions. We are here to help!
We offer the most extensive selection of used Stern Drive & Outboard parts in Wisconsin!
Keywords:
Mercury lower unit, Mercury outboard parts, 40 HP Mercury lower unit, 50 HP Mercury lower unit, Mercury gear case, Mercury 1643-6459A11, Mercury outboard lower unit, long shaft lower unit, 1976-1989 Mercury outboard, Mercury drive shaft, Mercury prop shaft, Mercury outboard replacement parts, Wisconsin marine parts, new Mercury lower unit
- Brand: Mercury
- Condition: New Other
- SKU: GB516656707
- Year: 1976-1979
- MPN: 1643-6459A11
- warehouse: LUP
- Horse Power: 40 50
- Related Part Numbers: 1643-7406A15, 1643-7406A35, 1643-9539A5
