MERCURY 8669A11 Lower Unit Gear Shaft

( Manufacturer Part Number: 8669A11 ), ( Part Type: Hp Unit Gear Shaft Case ), ( Warranty: 30 Day )

Review MERCURY Lower Unit Gear Case Hp Inch Shaft fits 2015–2025

Mercury 8669A11 Lower Unit Gear for 18, 20, 25 HP Outboards, 15" Shaft

The Mercury 8666A11 Lower Unit Gear is a precision-engineered component designed for Mercury outboard engines with 18, 20, or 25 horsepower, featuring a 15-inch shaft. This lower unit gear is an essential part of your powerboat's propulsion system, ensuring smooth, efficient power transmission from the engine to the propeller.

Crafted with high-quality materials, the 8666A11 Lower Unit Gear is built to withstand the rigors of marine environments, offering outstanding durability and performance. It features a robust, corrosion-resistant design that resists wear and tear, helping to maintain optimal gear performance even in challenging conditions.

The 8666A11 Lower Unit Gear is specifically designed for Mercury outboards, ensuring a perfect fit and seamless integration with your boat's powertrain. The gear's fine-tuned ratios deliver excellent torque and acceleration, helping you navigate through water with ease and confidence.

This lower unit gear is easy to install, thanks to its straightforward design and intuitive installation process. With the 8666A11, you can spend less time on maintenance and more time enjoying your time on the water.

In summary, the Mercury 8666A11 Lower Unit Gear is a must-have for any boat owner with a 18, 20, or 25 HP Mercury outboard and a 15-inch shaft. Its exceptional durability, performance, and ease of installation make it an invaluable addition to your boat, ensuring a smooth, enjoyable boating experience.

1. **Compatibility:** This lower unit is compatible with Mercury outboard engines of 18, 20, and 25 horsepower, and has a 15-inch shaft, making it suitable for a wide range of boats.

2. **Durability:** Mercury is known for its robust and durable products. The 8666A11 lower unit is designed to withstand harsh marine conditions, ensuring long-lasting performance.

3. **Efficiency:** The gearcase is designed for efficient water flow, which can help improve the boat's speed and fuel efficiency.

4. **Reliability:** Mercury's proprietary XK3 outboard gearcase is used in this lower unit, which is known for its reliability and smooth operation.

1. **Price:** Compared to some other lower unit options, the Mercury 8666A11 may be more expensive, which could be a deterrent for some buyers.

2. **Availability:** Depending on your location, it may be difficult to find a local store that carries this specific lower unit, which could make it harder to get repairs or replacements if needed.

The Mercury 8666A11 lower unit offers durability, efficiency, and reliability, making it a solid choice for those who prioritize these factors. However, its price and potential availability issues are worth considering before making a purchase.

If you are in the market for a new lower unit and can afford the higher price point, the Mercury 8666A11 could be a great investment due to its reputation for quality and performance. If price is a concern, it might be worth considering other brands or models as well. Always ensure that the selected lower unit is compatible with your specific outboard engine and boat.

Details:

MERCURY LOWER UNIT GEAR CASE 18 20 25 HP 15 SHAFT - SHORT DRIVESHAFT FRESHWATER USED XD PRESSURE TESTED AT PSI FOR MIN WITH LOSS FLUID HAS BEEN DRAINED NO WATER OR METAL PARTICULATE FOUND CRACKS MAJOR DAMAGE TO HOUSING PAINT SCUFFS AND WEAR IS STRAIGHT SKEG BUYER WILL NEED REPLACE PUMP FILL PRIOR INSTALL COMES AS PICTURED SEE LAST PICTURE COMPATIBLE model's.

part #: 8669a11 prices

• $600.00-$1200.00

specifications ouboaen:

• for makes: Mercury
• for years: 2015-2025
• mpn: 8669a11
• part type: Hp Unit Gear Shaft Case
• warranty: 30 Day

payments ouboaen:

• credit card: Diners-club
• other
• wallet: Google-pay

general ouboaen:

• Boat Parts > Outboard Engines Components > Other
• condition: Used

returns ouboaen:

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

shipping ouboaen:

• transit: 2-5 Days
• type: Fixed
• cost: $0.00
• class: Economy
• service: Economy

offer ouboaen:

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

seller ouboaen:

• city: McHenry, Illinois
• # reviews: 3257
• rating: 100.0%

Mercury 8669A11 Is Similar To:

• 11-835464 Mercury Sportjet Jet Drive Impeller Shaft Nut (39.3% similar) This is a new oem part...(July 26th, 2018)
• 1144-4889 Mercury Outboard Lower End Cap (41.2% similar) Watch my other listings for more outboard motor and parts,trolling motors parts boating items both new, used vintage. Shipping cost applies to the lower 48 states. Sold as is shown. Used mercury lower end cap number in casting is...(March 16th, 2018)
• 1144-6690 Mercury Crank Shaft End (35.8% similar) Item: listing for crank shaft end cap. Please see included pictures. For use with various mercury mariner outboard engines. 95 shipping via ups ground. Location: marine supply on hwy 49 in Gulfport, ms directly across from Lowe's 84 lumber...(January 4th, 2018)
• 1156-6311 Mercury Lower Gearcase.bearing End (41.5% similar) For sale is a lower gear case end cap the drive shaft part mercury 200HP outboard motors. End cap is in good condition, from a fresh water motor not corroded...(October 25th, 2017)
• 12596t2 Mercury Bearing Carrier Lower 754739114124 (32.1% similar) Comes with o-ring and seal. New old stock...(February 22nd, 2018)
• 1399-2583 Mercury Mercruiser Renault Stern Drive Carb Throttle Shaft (41.5% similar) Feel free to call and order. New oem factory part...(February 13th, 2019)
• 1462-2694a1 Mercury Hp Outboard Long Shaft Swivel Bracket (31.9% similar) Feel free to call and order. There is no damage or corrosion to this part. The part numbers are 1462-2694A1, 1462-3350A1, 1462-3701A1...(July 6th, 2018)
• 1480-7655a1 Mercury Outboard Swivel Bracket Long Shaft Hp (31.9% similar) This swivel bracket is in good condition and not cracked or damaged. This swivel bracket fits some mercury outboards from with 35 and 40 hp long shaft. Feel free to ask questions...(October 21st, 2018)
• 1547-3917 Mercury Sei Marine Vintage Upper Unit Gear Housing (39.3% similar) Very nice pre-owned mercury marine upper unit housing assembly. No cracks anywhere. Bolts look great, as do threads. This is a very nice true vintage housing unit. Decals are fantastic for the vintage. Paint has some marks as shown, again overall good for the vintage...(October 25th, 2018)
• 1547-9412a21 Mercruiser Mercury Upper Unit Gear Case (43.9% similar) This upper unit is guaranteed good. Ratio and 200 hp v6 as well inline 6 cylinder. This upper unit fits Mercuries alpha one stern drives from there is no damage or corrosion on. 3 v6 Mercuries alpha ones from 9412A21 mercury upper unit gear case. Return charges may apply. Everything on the inside is...(October 28th, 2018)
• 1564-6582a3 Mercury Mercruiser Sterndrive Drive Shaft Housing (35.8% similar) ...(February 11th, 2019)