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9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20
9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20

9539T18 9539T19 1643-9539 Mercury Outboard Lower Unit 20" GC Assembly 40HP 4 CYL

$ 580.79

Availability: 66 in stock
  • Skeg and Cavitation Plate are both in Excellent Used Condition: No Cracks, Chips or Breaks
  • Minor Paint Wear: Yes. As expected from Low Hour, Freshwater History of Use
  • Country/Region of Manufacture: United States
  • Gearcase Casting Number: 1643-9539 C
  • NOW NLA (No Longer Available at Marine Retailers): As No Longer Manufactured
  • OPEN & READ FULL DESCRIPTION!: For COMPLETE Transaction and Product Information
  • MICHIGAN FRESHWATER MARINE: Customer Service (616) 682-1560
  • As with all previously owned Outboard Lower Units: Seller recommends replacing water pump impeller, prior to use
  • FREE SHIPPING to the Lower 48 USA States Only & We Ship Daily: Will be Protectively Packaged in a Custom-Built Wooden Box Crate
  • Engine(HP): 40 HP (INLINE/ L4)
  • Manufacturer Part Number: 9539T18, 9539A18, 9539T19, 9539A19
  • Color: Black (Will Fit Gray Models too--just different color paint)
  • Water Pump Housing Assembly in Good Condition: Plastic Stamped Part No. 46-77821
  • Brand: Mercury
  • Condition: TESTED, GOOD. Shifts Correctly. From a Low Hour Freshwater Motor--No Salt Corrosion! Skeg and Cavitation Plate are in Excellent Used Condition (No Cracks, chips or Breaks). Minor Paint wear as expected from use. Please open and READ Full Description for complete Transaction and Item Details. Thanks
  • Drive Shaft Spline: 11-Teeth
  • MFM RETURN POLICY (For ALL Returns, Regardless of Reason): Buyer to Pay Return Shipping Costs and a 20% Return Fee
  • Includes Water Tube: Yes
  • Buyer Note: You will need to replenish the Gear Oil, prior to use
  • Sacrificial Anode Style Trim Tab: Intact, in good condition, and very clean!
  • Propeller Shaft Spline: 13-Teeth (includes Thrust Washer, Tab Washer and Prop Nut)
  • Water Screens: Intact and in Good Shape
  • Fits Various Mercury and Mariner 40HP Outboard Motors, Years: 1989-1997
  • Standard 20-inch Long Shaft Model: Measures 22-3/8" Mating Surface to Tip of Drive Shaft
  • Gear Oil was Drained, as required for shipping, and Inspected: Found to be very clean free of any contaminants or water
  • Stroke: 2-Stroke

    Description

    MICHIGAN FRESHWATER MARINE
    High Quality
    Previously-Owned
    Boat Parts
    From Freshwater Boats
    --No Salt Corrosion!
    COMPLETE! Mercury Outboard Lower Unit Gearcase Assembly
    Standard 20" Long Shaft, 40HP, In-Line 4 Cylinder, 2-Stroke Model for Model Years 1989-1997
    OEM Part Numbers: 9539T18 (from 9539A18)/ Black
    Will also Fit the Gray /Mercury Mariner Models 9539T19 (from 9539A19)--just different paint color
    From a Low Hour, Freshwater Used Only, 1995 Mercury Inline 4-Cylinder 20" 2-Stroke 40HP Outboard
    Motor Model: EO   |  Serial No. 0G116824
    Gearcase Casting No. 1643-9539 C
    Color: Black (though will fit the Gray/ Mariner Models as well)
    Skeg and Cavitation Plate are both in Excellent Used Condition
    Minor Paint wear, as expected from Low Hour Freshwater Use
    Sacrificial Anode Style Trim Tab intact and in very good condition
    Standard 20" Long Shaft Model
    Drive Shaft Spline: 11-Teeth
    Drive Shaft Measures 22-3/8" From the Base of the Water Pump Housing at the Lower Unit Upper Mating Surface to the Tip of the Driveshaft
    Propeller Shaft Spline: 13-Teeth (Includes Thrust Washer, Tabbed Washer and Propeller Nut)
    Water Screens are intact on both Port and Starboard Sides and in good condition
    Water Pump Housing Assembly is in very good condition.  Plastic is stamped with Part No. 46-77821
    IMPORTANT NOTE:  As required for shipping, the Gear Oil was drained and inspected. Fluids were found to be very clean--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 CUSTOM WOOD BOX-CRATED SHIPPING
    Only Ships to the Lower 48 USA States & WE SHIP DAILY
    Please be certain this is the correct part for your motor, PRIOR to purchasing.
    If you are unsure, or to confirm, please eBay Message us your Motor Model Number
    MFM RETURN POLICY (For ALL Returns, regardless of reason)
    By purchasing this item, Buyer confirms agreement with this Policy:
    MFM Accepts Pre-Authorized Returns
    Buyer to pay Return Shipping Costs and 20% Return Fee
    INV# 2306