MERCURY Outboard Motor Gear Bearing 745061130586 30-21889

( Manufacturer Part Number: 21889 ), ( Part Type: Bearing Motor Gear ), ( UPC: 745061130586 )

Review MERCURY Outboard Motor Reserve Gear Bearing fits MARINE

Mercury 21889 Marine Outboard Motor Gear Bearing - Precision and Durability Unleashed

The Mercury 21889 Marine Outboard Motor Gear Bearing is a testament to the brand's commitment to excellence in marine propulsion. Designed for exceptional performance and longevity, this gear bearing is an essential component of your outboard motor, ensuring smooth and efficient operation.

The 21889 gear bearing is meticulously engineered to withstand the rigors of marine environments. It is crafted from high-quality materials that provide unparalleled strength and durability, such as heat-treated steel races and corrosion-resistant bearings. This combination effectively guards against wear and tear, extending the lifespan of your outboard motor.

The bearing boasts a precision fit design, ensuring optimal alignment and minimizing friction. This results in reduced noise and vibration, providing a more comfortable and enjoyable boating experience. The bearing's unique design also enhances heat dissipation, preventing overheating, and maintaining optimal performance even in the most demanding conditions.

The Mercury 21889 Marine Outboard Motor Gear Bearing is easy to install, thanks to its straightforward design and clear installation instructions. It is compatible with various Mercury outboard motor models, making it a versatile and practical choice for boat owners.

In conclusion, the Mercury 21889 Marine Outboard Motor Gear Bearing is a reliable and robust solution for maintaining the optimal performance of your outboard motor. Its precision engineering, durability, and ease of installation make it an indispensable addition to your marine equipment. Embrace the power of precision with the Mercury 21889 Marine Outboard Motor Gear Bearing.

Analysis of Mercury 21889 Marine Outboard Motor Gear Bearing

1. High-Quality Material: The Mercury 21889 gear bearing is made from durable materials, ensuring long-lasting performance and resistance to wear and tear.

2. Compatibility: This gear bearing is specifically designed for the Mercury outboard motor, ensuring a perfect fit and proper function.

3. Reliable Brand: Mercury Marine is a well-known and trusted brand in the marine industry, offering quality products for various marine applications.

4. Easy Installation: The gear bearing is designed for easy installation, making it a convenient choice for DIY enthusiasts or professional mechanics.

1. Price: The Mercury 21889 gear bearing may be more expensive compared to aftermarket alternatives, which could be a deterrent for some buyers.

2. Availability: Depending on the location and the specific model of the Mercury outboard motor, finding this specific gear bearing might be challenging.

3. Limited Warranty: While Mercury Marine offers a warranty on their products, the gear bearing's warranty might be limited, and any additional coverage may require additional costs.

Conclusion: The Mercury 21889 marine outboard motor gear bearing is a reliable and high-quality option for those seeking a replacement for their Mercury outboard motor. Its durability, compatibility, and easy installation make it an appealing choice. However, potential buyers should consider the higher price and potential availability issues before making a purchase. If budget and availability are not a concern, this gear bearing is a recommended choice. For those seeking a more cost-effective solution, aftermarket alternatives may be worth exploring, but ensure they are compatible with the specific Mercury outboard motor model.

Details:

Outboard Engines. Winterizing Products. Trim Tab Components. From first-time boaters to seasoned captains, every customer receives the same personalized attention, expert consultation, and after-sale care that have defined Doug Russell Marine since day one.

Volvo Pent Parts. Jack plates Motor Brackets. Outboard Lower Units. Reserve Gear Bearing 21889: This item for sale is a Mercury Marine Outboard.

Mercury Marine/Quicksilver PN: 21889.

part #: 21889 prices

• $19.99-$49.99

specifications ouboaen:

• for models: Marine
• for makes: Mercury
• mpn: 21889
• part type: Bearing Motor Gear
• upc: 745061130586

offer ouboaen:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: November 13, 2025

returns ouboaen:

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

payments ouboaen:

• other
• wallet: Paypal
• credit card: Diners-club

general ouboaen:

• Boat Parts > Outboard Engines Components > Lower Unit Components
• condition: New

shipping ouboaen:

• cost: $9.10
• type: Calculated
• transit: 2-6 Days
• service: USPS First Class, USPS Ground Advantage, USPS Priority Mail, UPS Ground
• class: Standard, Expedited
• carrier: USPS, UPS

seller ouboaen:

• # reviews: 137341
• rating: 99.3%
• city: Worcester, Massachusetts

Mercury 21889 Is Similar To:

• 010-281 Wsm Mercury Center Main Bearing Make An Offer (37.3% similar) This is best offer item. New main bearing in package. Make me an offer you never know...(March 28th, 2018)
• 031026 Michigan Propeller Aluminum Prop Mercruiser Mercury Outboard (24.2% similar) Pb this prop has some minor damage as seen in the pictures. Please see included pictures. Condition: used but in good condition and guaranteed to function properly. This prop will also fit v6 Honda outboards with the correct hardware. 75 x 21P Mercuries mercury outboard propeller fits various ...(April 3rd, 2018)
• 06168-zy1-307 Honda Mercury Outboard Electric Circuit Breakers (33.1% similar) Products might fit other makes and model's, please research before assuming. Thanks in advance. Have up for sale good quality tested parts that a satisfactory guarantee. These products have been used and will average wear look feel to them...(April 9th, 2018)
• 10-30110 Mercury Lot Of Oem Outboard Screws New Free Shipping (47.6% similar) Lot of 2 oem mercury screws w lock washers used on some vintage mark outboard engines. Please verify comparability before purchase...(April 15th, 2018)
• 10-34691 Mercury Mariner Bulk Lot Pieces Old Stock Outboard Force Chrysler (44.6% similar) This is a bulk lot of new parts for mercury mariner force outboard nos Nola 200 individual part numbers in factory bags with most being multi PACKS1500 total pieces packed USPS medium flat rate box flax...(February 9th, 2019)
• 10-36070 Green Bay Prop Mercury Mariner Mercruiser Marine Engine Screw (28.1% similar) Quicksilver screw, 5-PACKFOR use on many mercury mariner outboards and Mercuries stern drives. Over 120 marine engines use this screw...(July 12th, 2018)
• 10-38055 Mercury Lot Of Oem Outboard Hinge Plate Screws Quicksilver New (35.3% similar) This fee covers the initial shipping cost regardless of label free. Lot of 4 oem mercury outboard hinge plate screws - quicksilver please verify compatibility before purchase...(February 21st, 2019)
• 100-25-20 6h4-11631-01-95 9009a5 9009a13 9009 Mercury Outboard Hp Bottom Guided Rebuild Kit (32.1% similar) ...(March 14th, 2018)
• 100-819748a Forace Mercury Marine Force Top Cowl Hood Cover (33.9% similar) Top of cowl has some normal fading from sun. It is in good used condition, and shows normal signs of wear. No major damage or defects noted on this cowl. Good used top cover cowl from a 1993 force 50 hp outboard...(May 13th, 2018)
• 1004211wk Mercury 4 Hp Outboard (37.5% similar) It has been garaged stored up right and covered. For sale is a lightly used mercury 4 hp outboard motor model ml. This motor has not been operated in a while. I am the original owner and purchased this outboard new for use on my sailboat. The outboard model number is 1004211WK it considered a 2-...(July 12th, 2017)
• 10238367 Mercury Outboard Cylinder Head Block Water Jacket Cover (31% similar) Used cover from a 1978 mercury 115 horsepower 6 cylinder outboard boat motor...(February 1st, 2019)