MERCRUISER 1547-9412A21 Upper Unit Gear 83-90 1.65R 5.0L 4.3L 3.7L

( Brand: Mercruiser ), ( Manufacturer Part Number: 1547-9412A21 ), ( Part Type: Unit Gear Case )

Review MERCRUISER Mercury Upper Unit Gear Case 83-90 5.0l 4.3l 3.7l

The Mercury Mercruiser 1547-9412a21 Upper Unit Gear is a crucial component for any 83-90 model Mercury outboard engine, specifically those equipped with 1.65:1 ratio, and powered by engines with displacements of 5.0L, 4.3L, or 3.7L. This upper unit gear is designed to work seamlessly with Mercury's renowned 3.5-inch propeller shaft, ensuring optimal performance and reliability.

The 1547-9412a21 is a precision-engineered piece, manufactured with high-quality materials to withstand the harsh marine environment. Its durable design includes hardened steel gears, which are known for their strength and resistance to wear and tear. The gear teeth are precision-machined to ensure smooth operation and minimize noise.

The upper unit gear is designed to fit perfectly with the lower unit, ensuring a seamless power transfer from the engine to the propeller. This results in efficient propulsion, improved acceleration, and better overall performance. The gear is also designed to minimize drag, which can help improve fuel efficiency and extend the life of your engine.

Installation of the Mercury Mercruiser 1547-9412a21 Upper Unit Gear is straightforward, thanks to its simple design and clear installation instructions. The gear is easy to remove and replace, making maintenance and repairs a breeze.

In conclusion, the Mercury Mercruiser 1547-9412a21 Upper Unit Gear is a must-have for any Mercury outboard engine owner looking to maintain top performance and reliability. Its durable design, precision engineering, and easy installation make it a smart investment for any boat owner.

1. Compatibility: This gear is specifically designed for Mercury Mercruiser engines between 1983 and 1990, making it a reliable choice for boat owners with these engines.

2. Versatility: It is compatible with various engine sizes, including 5.0L, 4.3L, and 3.7L, providing flexibility for different boat power needs.

3. Durability: Mercury Mercruiser is known for its high-quality marine parts, which this gear is a part of. It is likely to withstand the harsh marine environment and provide reliable service for a long time.

4. Availability: Due to its wide use and popularity, this gear is easily available in the aftermarket, making it easy to find and purchase.

1. Cost: Replacing a gearbox can be an expensive undertaking, especially if labor costs are factored in.

2. Installation: Installation of the gearbox can be a complex process, requiring specialized tools and technical knowledge.

3. Incompatibility with non-Mercury engines: This gear is specifically designed for Mercury Mercruiser engines, so it may not be compatible with other engine brands.

The 1547-9412A21 Mercury Mercruiser upper unit gear is a reliable and durable option for boat owners with compatible Mercury engines. Its wide availability and compatibility with various engine sizes are significant advantages. However, its high cost and installation complexity are potential drawbacks that should be carefully considered before making a purchase.

If you are a do-it-yourselfer with the necessary tools and technical knowledge, the 1547-9412A21 Mercury Mercruiser upper unit gear may be a cost-effective option for you. However, if you are not comfortable with the installation process, it may be wise to consider hiring a professional to ensure the job is done correctly. Ultimately, the decision to purchase this gear should be based on your specific needs, budget, and technical abilities.

Details:

This upper unit is guaranteed good.

0 and 200 hp v6 as well inline 6 cylinder.

This upper unit fits Mercruiser alpha one stern drives from there is no damage or corrosion on.

3 v6 Mercruiser alpha ones from 9412a21 Mercury upper unit gear case. Return charges may apply.

Everything on the inside is perfect condition original Mercury equipment. Recommended ratio for 5. 65 gears are 24 and teeth.

part #: 15479412a21 prices

• $479.95-$600.00

specifications ouboaen:

• for makes: Mercury
• brand: Mercruiser
• mpn: 1547-9412a21
• part type: Unit Gear Case

Seller ouboaen:

• # feedbacks 10-28-18: 14627
• zipcode: 54173
• city: Suamico, Wisconsin
• rating 10-28-18: 99.8%

Offer ouboaen:

• bids: 0
• best offer: false
• quantity: 1
• Sold: 0
• Started: October 28, 2018, 12:06 pm

General ouboaen:

• in stock: Yes
• Outboard Engines Components > Other
• condition: Used

Shipping ouboaen:

• type: Calculated
• handling: 1 days

Payments ouboaen:

• PayPal

Ratings:

1. Everything was fine. 10-28-18
2. quality part 10-27-18
3. I received my order very happy thank you 10-28-18
4. fantastic item fast ship! 10-27-18
5. As descibed 10-28-18

Returns ouboaen:

• paid by: Buyer
• time: 30 Days
• policy: returns accepted

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