1. Boat Outboard Engines To Buy
  2. sku: 13635079435418671
  3. MERCURY 1643-9539A9

MERCURY 1643-9539A9 Lower Unit Gearcase Outboard Motor 60HP 3CYL

fits model: Mariner. make: Mercury. year: 1984.

1643-9539a9 Mercury 1984 Mariner 60hp 3cyl Lower Unit Gearcase Assy 1643-9539 Outboard Motor

( Manufacturer Part Number: 1643-9539A9 ), ( Part Type: Unit Motor )

Review MERCURY 60hp 3cyl Lower Unit Gearcase Assy 1643-9539 Outboard Motor fits MARINER 1984

The Mercury 1643-9539A9 1984 Mariner 60hp 3cyl Lower Unit Gearcase is a high-quality marine propulsion component designed for reliable and efficient operation. This lower unit gearcase is compatible with the Mercury 1984 Mariner 60hp 3cyl outboard motor, providing a seamless integration of power and propulsion.

The Mercury 1643-9539A9 lower unit gearcase features a robust 3-cylinder design, which provides ample power to propel boats of various sizes. The gearcase is made of high-strength materials, ensuring durability and resistance to corrosion and wear, even in the harshest marine environments.

The lower unit gearcase features a gear ratio of 2.25:1, which provides optimal speed and torque for the Mariner 60hp outboard motor. This gear ratio ensures smooth and efficient operation, allowing the boat to reach its maximum speed quickly and maintain it over long distances.

The Mercury 1643-9539A9 lower unit gearcase also includes a high-quality, sealed gear system that is lubricated for life. This ensures that the gearcase operates quietly and smoothly, with minimal maintenance required. The gearcase is also equipped with a water pickup screen, which helps to prevent debris from entering the gear system and causing damage.

In addition, the Mercury 1643-9539A9 lower unit gearcase includes a built-in trim tab system. This allows the boat to be trimmed up or down for optimal performance in different conditions. The trim tab system is simple to use and adjust, providing the boat operator with greater control over the boat's handling and performance.

Overall, the Mercury 1643-9539A9 1984 Mariner 60hp 3cyl Lower Unit Gearcase is a high-quality and reliable marine propulsion component. Its robust design, efficient gear ratio, and built-in trim tab system make it an excellent choice for boat owners looking for reliable and efficient propulsion.

Pros of buying a Mercury 1643-9539A9 1984 Mariner 60hp 3-cyl lower unit gearcase:

1. Affordability: Compared to newer models, this outboard motor is relatively inexpensive, making it an attractive option for budget-conscious buyers.

2. Simplicity: The 3-cylinder engine is known for its simplicity, which can make it easier to maintain and repair.

3. Availability of parts: Being an older model, there is a high likelihood of availability of replacement parts, which can save time and money in the long run.

4. Familiarity: Older models like this one are often favored by boat owners who are nostalgic for the way things used to be, and who enjoy the reliability and ease of use that comes with simpler technology.

Cons of buying a Mercury 1643-9539A9 1984 Mariner 60hp 3-cyl lower unit gearcase:

1. Limited power: The 60hp engine may not provide enough power for larger boats or for those who require a higher top speed.

2. Fuel efficiency: Older engines are generally less fuel-efficient than newer models, which can lead to higher fuel costs over time.

3. Limited technology: The 1984 model may not have the same level of advanced features as newer outboard motors, such as digital displays or electronic fuel injection.

4. Limited warranty coverage: Older models may not be covered by the same warranty as newer models, which can add to the cost of ownership if repairs are needed.

Recommendation:

If you are looking for an affordable, simple, and reliable outboard motor, the Mercury 1643-9539A9 1984 Mariner 60hp 3-cyl lower unit gearcase may be a good option for you. However, it is important to consider the limitations of this older model, such as limited power and fuel efficiency, and to weigh these against the potential benefits of its simplicity and availability of replacement parts. Ultimately, the decision to purchase this outboard motor should be based on your specific needs and preferences as a boat owner.

Details:

Recent freshwater pull from a running 1984 Mariner 60hp 3Cyl.

part #: 16439539a9 prices

  • $349.95-$599.95

specifications ouboaen:

  • for models: Mariner
  • for makes: Mercury
  • for years: 1984
  • mpn: 1643-9539a9
  • part type: Unit Motor

returns ouboaen:

  • time: 30 Days
  • policy: Returns Accepted
  • paid by: Buyer

payments ouboaen:

  • other
  • credit card: Mastercard
  • wallet: Paypal

offer ouboaen:

  • options: Ship-to-home
  • availability: In Stock
  • started: January 30, 2025
  • best offers: True
  • quantity: 1
  • sold: 0

general ouboaen:

  • condition: Used
  • Boat Parts > Outboard Engines Components > Complete Outboard Lower Units

shipping ouboaen:

  • type: Fixed
  • transit: 4-8 Days
  • class: Standard
  • service: Standard
  • cost: $39.79

seller ouboaen:

  • rating: 100.0%
  • city: Hartland, Wisconsin
  • # reviews: 4783
for models: mariner, for makes: mercury, for years: 1984, part type: unit motor,
category: boat parts > outboard engines components > complete outboard lower units, sku: 13635079435418671,
Mercury 1643-9539A9 Is Similar To:
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2 offers $349.95–$599.95 USD
  • Used. Offer #1 priced at $349.95 + $0.00 shipping estimate = $349.95* total. pressure test was poor, the unit will need new seals 1643-9539, 1643-9539A 9, 9539A 8, 9539T 8.FREE SHIPPING
  • Used. Offer #2 priced at $599.95 + $0.00 shipping estimate = $599.95* total. Minor chip wear on lead edge of skeg (see photos). 7406A42 (Will Fit Others).FREE SHIPPING

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