1643-9539A9 9539A9 Mercury Mariner Outboard Lower Unit Gearcase 20″ Long 50-70HP
Manufacturer Part Number: 1643-9539A9 (9539A9, 7406A42
Engine(HP): 50/60/70 HP
Stroke: 2-Stroke
Warranty: No Warranty
Custom Bundle:
Modified Item:
Modification Description:
Non-Domestic Product: Yes
Applicable Regions:
California Prop 65 Warning:
Country/Region of Manufacture: United States
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MICHIGAN FRESHWATER MARINE High Quality Previously-Owned Boat PartsFrom Freshwater Boats–No Salt Corrosion! Mercury Mariner Outboard Lower Unit Complete Gearcase Assembly1643-9539A9 (9539A9) Interchanges with Part No. 7406A42 TESTED GOOD–Shifts Correctly through Forward, Neutral and Reverse20-inch Standard Long Shaft ModelSome chip wear on skeg (please see close-up photos)Some paint wear from use11-Teeth Spline DriveshaftDriveshaft is straight with no twisting!Driveshaft measures 22-1/4″ from top of Lower Unit mating surface to Tip of Driveshaft13-Teeth Spline Propeller ShaftIncludes Tabbed and Thrust Washers and Prop NutCasting Number: 1643-9539-CColor: Mercury Gray IMPORTANT NOTE: As required for shipping, the Gear Oil was drained and inspected. Fluids were found to be free of metal shavings, foam, water or any other contaminants. Buyer MUST replenish the Gear Oil prior to placing this unit back into service. As with all previously owned Lower Units, we also recommend replacing the water pump impeller before use. FREE SHIPPING IN A CUSTOM-BUILT WOODEN BOX CRATEOnly Ships to the Lower 48 USA States & WE SHIP DAILY FITMENT: Will fit various Models, 50, 60, and 70 HP, Years 1980-1990 (may fit others). PRIOR to purchasing, IF you are unsure of fitment, please eBay Message us your Motor Model Number. We say this to help prevent you from incurring the costs of a Return (READ POLICY BELOW) MFM RETURN POLICY (For ALL Returns)By purchasing this item, Buyer confirms agreement with this Policy:MFM Accepts Pre-Authorized ReturnsBuyer to pay Return Shipping Costs and 20% Return Fee INV# 2260