MERCURY Alpha Shaft Bushing 23-815921A20 815921A13 Up

( Manufacturer Part Number: 815921A20 ), ( Part Type: Shaft Bushing ), ( Year: 1998 Up )

Review MERCURY Alpha Gen Shift Shaft Bushing Assembly fits MERCRUISER 1998

The Mercury 815921a20 / 23-815921a20 Mercruiser Alpha Gen Shaft Bushings are essential components that play a crucial role in the performance and durability of your Mercury outboard engine. These bushings are designed to provide a secure and efficient connection between the engine's crankshaft and the propeller shaft, ensuring smooth power transmission and minimizing vibration.

The Mercury 815921a20 / 23-815921a20 Mercruiser Alpha Gen Shaft Bushings are engineered using high-quality materials that offer excellent resistance to wear and tear, ensuring a long service life. The bushings are precision-machined to ensure a perfect fit and are designed to meet or exceed OEM specifications.

These bushings feature a unique design that includes a durable, self-lubricating material that reduces friction and wear, ensuring a quiet and smooth operation. The material also provides excellent resistance to corrosion and other environmental factors, ensuring that the bushings perform reliably in even the most demanding marine conditions.

The Mercury 815921a20 / 23-815921a20 Mercruiser Alpha Gen Shaft Bushings are easy to install and require no special tools or equipment. They are available as a replacement for the original equipment bushings and are suitable for use with Mercury outboard engines that require these specific part numbers.

By choosing the Mercury 815921a20 / 23-815921a20 Mercruiser Alpha Gen Shaft Bushings, you can enjoy the peace of mind that comes with knowing that you have installed high-quality, reliable components in your engine. These bushings will help ensure that your engine runs smoothly, efficiently, and reliably, providing you with many hours of enjoyable boating.

In summary, the Mercury 815921a20 / 23-815921a20 Mercruiser Alpha Gen Shaft Bushings are essential components for Mercury outboard engines that require these specific part numbers. They are engineered using high-quality materials that offer excellent resistance to wear and tear, and feature a unique design that includes a self-lubricating material that reduces friction and wear. These bushings are easy to install and are a reliable replacement for the original equipment bushings, ensuring that your engine runs smoothly, efficiently, and reliably.

Mercury Alpha Gen Shaft Bushings (815921a20): A Comprehensive Analysis

The Mercury 815921a20/815921a13 Alpha Gen Shaft Bushings are vital components for Mercury outboard engines. These bushings help reduce vibration and absorb the torsional loads experienced during engine operation. In this analysis, we will discuss the potential advantages and disadvantages of purchasing these bushings.

1. Improved Performance: New bushings can help reduce vibration and improve overall engine performance.

2. Increased Durability: Worn-out or damaged bushings can lead to engine issues. Replacing them with new ones can help extend the life of the engine.

3. Enhanced Safety: Aged or worn-out bushings can lead to safety concerns, especially during high-load conditions. New bushings help mitigate these risks.

4. Better Fuel Efficiency: Properly functioning bushings can help improve engine efficiency, leading to potential fuel savings.

5. OEM Quality: Mercury is a reputable brand, and these bushings are designed to meet or exceed OEM specifications.

1. Cost: Replacing engine bushings can be an expensive proposition, especially when considering the labor costs associated with the installation.

2. Availability: Depending on the location and availability, it may take some time to source and receive these bushings.

3. Installation Complexity: Installing the bushings can be a complex process that requires specialized tools and knowledge, adding to the overall cost and time investment.

The Mercury 815921a20/815921a13 Alpha Gen Shaft Bushings are essential components for maintaining optimal engine performance and ensuring safety. While the upfront cost and installation complexity may be deterrents, the potential performance improvements, increased durability, and enhanced safety make these bushings a worthwhile investment for Mercury outboard engine owners.

If you own a Mercury outboard engine and suspect that your shaft bushings may be worn out or damaged, it is recommended that you replace them with new, OEM-quality bushings such as the Mercury 815921a20/815921a13 Alpha Gen Shaft Bushings. While the cost and installation complexity may be concerns, the potential benefits far outweigh the initial investment. It is essential to source these bushings from a reputable dealer to ensure authenticity and quality.

Details:

Quicksilver Bushing Assembly. MPN: 23-815921A20. Part number 23-815921A20. Condition: New.

Brand: Mercury. Year: 1998 Up. Related Part Numbers: 815921A13. New OEM part.

part #: 815921a20 prices

• $23.00-$24.99

specifications otsterndriv:

• for models: Mercruiser
• for makes: Mercury
• mpn: 815921a20
• part type: Shaft Bushing
• year: 1998 Up

returns otsterndriv:

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

seller otsterndriv:

• city: Green Bay, Wisconsin
• # reviews: 27795
• rating: 99.0%

offer otsterndriv:

• sold: 0
• availability: In Stock
• quantity: 1
• started: August 26, 2025
• best offers: True
• options: Ship-to-home

shipping otsterndriv:

• class: Standard, Expedited
• cost: $10.75
• carrier: USPS, UPS
• transit: 3-9 Days
• type: Calculated
• service: USPS First Class, USPS Priority Mail, UPS Ground

payments otsterndriv:

• credit card: Visa
• other
• wallet: Paypal

general otsterndriv:

• condition: New
• Boat Parts > Sterndrive Motors Components > Other

Mercury 815921A20 Is Similar To:

• 862365 Mercury Mercruiser Mag Horizon Ho Engine Cover Like New Near (29.4% similar) Decals are in great condition. A few small scratches. In great near perfect condition...(October 14th, 2018)
• 10-35366 Mercury Mercruiser Stern Drive Engine Screw (38.1% similar) New oem part...(October 25th, 2018)
• 10-42253 Mercury Mercruiser Alpha Bravo Stern Drive Pivot Bolt (42% similar) Ii 0D469859 thru 0F679999 mercruiser alpha one gen. Cat new oem part. Mercury pivot bolt this bolt is for use on various mercruiser stern drives. Feel free to call and order. Ii 0F680000 thru 0K999999 mercruiser alpha one gen. Fits:alpha one gen...(September 29th, 2018)
• 10-49956 Quicksilver Mercury Mercruiser Bravo Alpha Oil Pan Drain Screw (39.8% similar) Quicksilver drain screw for use on many mercruiser, bravo alpha stern drive engines. Over 100 mercruiser stern drives use this oil pan drain plug...(October 1st, 2018)
• 10-59645 Quicksilver Mercury Mariner Mercruiser Alpha Bravo Screw (37.5% similar) New oem part. 750FOR various mercury mariner outboard and mercruiser stern drive engines. Quicksilver screw...(October 23rd, 2018)
• 10-805611 Quicksilver Mercury Mercruiser Bravo Manifold Bolt (34.8% similar) 4l related part numbers: number quicksilver bolt for use on 4l V-8 gm mercruiser bravo ii stern drive engines from mercury 2 v8...(October 7th, 2018)
• 105255 Mercruiser Mercury Trim Tilt Pump Solenoid (27.8% similar) It is in good working condition. It comes as pictured. Trim pump this is a used mercruiser with 1 solenoid as pictured. The return line hole appears to be stripped, see pictures...(September 30th, 2018)
• 105921 Mercury Power Trim Pump Works Tested Mercruiser (26.8% similar) Good used condition working order...(January 23rd, 2019)
• 105932 Mercury Power Pump Mercruiser Sterndrive (33.8% similar) ...(October 20th, 2018)
• 11-32522 Mercury Pack Of Mercruiser Vintage Gimbal Splined Nut (36.9% similar) Part number mercury marine splinted screw nut transom plate to gimbals housing new oem factory that is now obsolete. For use on vintage mercruiser stern drive engines from fits: I thru IA Ibo ICC package of...(February 18th, 2019)
• 11-41527t 41527 Mercury Mercruiser Alpha Stern Drive Nut Nla (43.9% similar) For use on mercruiser stern drive engines from fits: alpha one ss all thru none SAM ii iii iv v trs up cat mercury marine lock nut new oem factory part that is now obsolete...(October 6th, 2018)