Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"
Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"
Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"
Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"
Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"
Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"
Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"

Mercury Mariner 9539A5 Gearcase Lower unit 4Cyl. 1987-97 30-45HP Long 20"

We have 1 in stock.

Regular price $344.95 Sale

Nice fresh water gearcase.  Shifts properly, drained clean oil with no metal or water.  Passed pressure and vacuum tests with zero drop.  Original factory paint, case has no chips or cracks, skeg and cavitation plate are straight.  All splines in good condition.  see pictures for cosmetic condition. 

Unit has no oil in it and must be filled before use.  Impeller was not checked, suggest replacing before installation on your motor.

Brand: Mercury
Manufacturer Part Number: 1643-9539A5 9539A5
Warranty: 30 Day
Country/Region of Manufacture: United States
Serial Number: OC225755
Transom Length: 20
Engine(HP): 45
Stroke: 2-Stroke

Condition: Used