447-300 EMP Wsm Lower Unit Bearing Mercury

Review EMP Wsm Mercury Hp Lower Unit Bearing for MERCURY

The Mercury 18-1143 31-36387A lower unit bearing is a crucial component of the Mercury 447-300 WSM outboard motor's propulsion system. This bearing is specifically designed for Mercury outboard motors with a power output of 105 to 400 horsepower.

The 18-1143 31-36387A lower unit bearing is an integral part of the lower unit assembly, which houses the gear train that transmits power from the engine to the propeller. The bearing is responsible for supporting the load and facilitating smooth, efficient rotation of the lower unit.

This Mercury lower unit bearing is engineered using high-quality materials for optimal durability and performance. It features a robust, sealed design that minimizes the ingress of water and debris, ensuring reliable operation even in harsh marine environments.

The Mercury 18-1143 31-36387A lower unit bearing is precision-machined to ensure a perfect fit and proper function. It comes with an integrated seal that helps maintain lubrication and prevent leaks. The bearing is also compatible with Mercury's proprietary Quiet Technology , which helps reduce noise levels for a more enjoyable boating experience.

Installing the Mercury 18-1143 31-36387A lower unit bearing is a straightforward process that can be done by experienced boat owners or professional technicians. It is recommended to follow the manufacturer's instructions carefully to ensure proper installation and avoid any potential damage to the lower unit or engine.

In conclusion, the Mercury 18-1143 31-36387A lower unit bearing is a critical component of the Mercury 447-300 WSM outboard motor's lower unit assembly. Its robust design, high-quality materials, and precision manufacturing make it a reliable and efficient choice for boaters who demand superior performance and durability from their outboard motor.

The Mercury 18-1143 31-36387A lower unit bearing for a 447-300 WSM outboard motor with a 105-400 horsepower engine has both advantages and disadvantages to consider before making a purchase.

1. Durability: Mercury is known for producing high-quality marine parts, and this lower unit bearing is no exception. It is designed to withstand the rigors of prolonged use in marine environments.

2. Easy Installation: The bearing is a direct replacement for the original equipment, making installation straightforward and hassle-free.

3. Improved Performance: A new lower unit bearing can help improve the performance of your outboard motor by reducing vibration and ensuring that the lower unit turns smoothly.

1. Cost: The Mercury lower unit bearing is more expensive than some aftermarket alternatives. However, the higher price tag may be justifiable given Mercury's reputation for durability and quality.

2. Availability: Depending on your location, it may be difficult to find this specific bearing in stock at your local marine parts supplier. You may need to order it online or wait for it to be shipped.

The Mercury 18-1143 31-36387A lower unit bearing for a 447-300 WSM outboard motor with a 105-400 horsepower engine is a high-quality, durable part that can help improve the performance of your motor. However, it comes with a higher price tag than some aftermarket alternatives and may be difficult to find in stock at your local marine parts supplier.

If you value the durability and performance that Mercury parts are known for and have the budget for it, then this lower unit bearing is a worthwhile investment. However, if cost is a concern, you may want to consider a less expensive aftermarket alternative. In either case, be sure to check with your local marine parts supplier or Mercury dealer to ensure that you have the correct part for your specific outboard motor model.

Details:

Shipped with USPS ground advantage. Wsm Mercury 105-400 hp lower unit bearing - 447-3 18-1143, 31-36387A condition is new.

specifications watercraftimp:

• for makes: Mercury
• brand: Emp
• mpn: 447-300
• part type: Bearing Hp Unit
• unit type: Unit

shipping watercraftimp:

• transit: 5-10 days
• class: standard
• carrier: usps
• service: usps ground advantage
• type: fixed

returns watercraftimp:

• policy: no returns

payments watercraftimp:

• wallet: paypal
• other
• credit card: discover

seller watercraftimp:

• city: utica, missouri
• # reviews: 20
• rating: 100.0%

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

offer watercraftimp:

• started: april 9, 2025
• sold #: 20
• prices: $56.97–$59.97
• item condition: New
• availability: in stock
• best offers: true
• in stock #: 5
• options: ship-to-home