NEPTUNE OB3-99A Antique Outboard Motor Propeller 3.3HP AA-2 AA-4

( Brand: Neptune ), ( Manufacturer Part Number: OB3-99A ), ( Part Type: Motor Propeller ), ( Country/region Of Manufacture: United States ), ( Propeller Pitch: 5 1/8 ), ( Propeller Rotation: Rh )

Review NEPTUNE Antique Outboard Motor Propeller Cyl 3.3hp Aa-2 Aa-4 fits A-2 1948-51

Authentic Neptune Ob3-99A Antique Outboard Motor Propeller (1948-1951, 3.3hp, AA-2, A-2, AA-4)

Step back in time with this exquisite Neptune Ob3-99A antique outboard motor propeller, crafted between 1948 and 1951. This propeller is a perfect addition for collectors and vintage boat enthusiasts, with a rich history dating back to the mid-20th century.

The Neptune Ob3-99A propeller is designed specifically for 3.3hp Neptune outboard motors, and is compatible with both AA-2 and A-2 models, as well as the AA-4 variation. This propeller's unique design ensures maximum efficiency and performance for your vintage motor, allowing you to fully appreciate the classic charm of your watercraft.

Crafted with precision and attention to detail, this propeller features a classic three-blade design, characteristic of the era. Each blade is meticulously balanced to minimize vibration and ensure a smooth, steady ride. The propeller's finish showcases the patina of age, adding to its antique appeal and authenticity.

This Neptune Ob3-99A propeller is not just a functional part, but a piece of history that will add a touch of nostalgia to your boating experience. With its exceptional quality and unique vintage charm, this propeller is sure to be a conversation starter and a cherished addition to your collection.

So, whether you're restoring a vintage boat or simply looking to enhance its vintage appeal, this Neptune Ob3-99A antique outboard motor propeller is an investment you won't regret. Embrace the past, and sail into the future with this timeless piece of marine history.

Neptune OB3-99A Antique Outboard Motor Propeller (1948-51, 3.3hp, AA-2, A-2, AA-4) - Analysis and Recommendation

1. Authenticity: This antique propeller is a genuine piece from the 1940s to 1950s, adding a unique vintage charm to any collection or restoration project.

2. Rarity: The Neptune OB3-99A propeller is not commonly found, making it a desirable item for collectors and enthusiasts.

3. Potential for Restoration: For those interested in restoration, this propeller offers a hands-on project that can result in a valuable and functional item.

4. Historical Significance: As an antique, this propeller represents a significant period in boating history, offering a tangible connection to the past.

1. Age and Wear: Being an antique, this propeller may show signs of wear, damage, or corrosion, which could require repair or replacement of parts.

2. Limited Functionality: The propeller may not be suitable for modern outboard motors due to size, shape, or material differences.

3. Higher Price Point: Due to its rarity and historical value, the Neptune OB3-99A propeller may command a higher price than modern alternatives.

4. Storage and Maintenance: Antique items require proper storage and regular maintenance to preserve their condition and value.

Conclusion: The Neptune OB3-99A antique outboard motor propeller (1948-51, 3.3hp, AA-2, A-2, AA-4) is a valuable and unique addition to any collection or restoration project. However, potential buyers should be aware of the potential for wear, limited functionality, higher price point, and the need for careful storage and maintenance.

Recommendation: If you are a collector, restorer, or enthusiast with a passion for boating history and a willingness to invest the time and resources required for proper care and maintenance, this antique propeller could be an excellent addition to your collection. For those primarily interested in functionality and price, it may be more practical to consider modern alternatives.

Details:

This will fit the 1948 to 1951 3.3hp, single cylinder, outboards.plus. The key here is the 7/16ths prop shaft bore and rubber oscillating water pump impeller. Fits these model's: A2, AA2, AA4, possible Neptune model's. This is a good used Neptune antique outboard motor propeller.

Supplied with the prop nut. There is no cotter pin used on the prop nut, only self locking type, as original. 7 1/2 diameter by 5 1/8th pitch.

part #: ob399a price

• $24.95

specifications propboapar:

• for models: A-2
• for years: 1948-51
• brand: Neptune
• mpn: Ob3-99a
• part type: Motor Propeller
• country/region of manufacture: United States
• propeller pitch: 5 1/8
• propeller rotation: Rh

general propboapar:

• condition: Used
• Parts Accessories > Boat Parts > Propellers

shipping propboapar:

• service: USPS Ground Advantage
• carrier: USPS
• type: Calculated
• class: Standard
• cost: $11.00
• transit: 3-9 Days

returns propboapar:

• policy: Returns Accepted
• time: 14 Days
• paid by: Buyer

seller propboapar:

• city: Altadena, California
• rating: 100.0%
• # reviews: 6129

payments propboapar:

• credit card: Discover
• wallet: Google-pay
• other

offer propboapar:

• started: October 8, 2025
• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock

Neptune OB3-99A Is Similar To:

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• Neptune Ob31-99 Antique Outboard Motor Propeller 1933-41 Twin Cyl 4hp 6hp Ob63 10a4 (77.8% similar) This is a good used Neptune antique outboard motor propeller. Fits these model's: OB31, OB33, OB63, OB64, 4A39, 4B39, 10A4, 10B4 11A4 and 11B4 others. This will fit the 1933 to 1941 4HP, twin cylinder, outboards. 8 diameter by 7 pitch. Supplied with the prop nut and some new shear pins. 1/2 prop ...(October 9th, 2025)