MERCURY 48-20325A1 Antique Outboard Motor Propeller MK20 MK25 Quicksilver

( Manufacturer Part Number: 48-20325A1 ), ( Part Type: Motor Propeller ), ( Propeller Pitch: 10.5 ), ( Propeller Rotation: Rh ), ( Country Of Origin: United States )

Review MERCURY Antique Outboard Motor Bronze Propeller Quicksilver#48-20325a1

The **Mercury 48-20325A1 Antique Outboard Motor Propeller (MK20/MK25 Quicksilver Series)** is a meticulously crafted, high-performance marine propeller designed to deliver unmatched efficiency and reliability for classic and vintage outboard engines, particularly those from Mercury s legendary **MK20 and MK25 Quicksilver series**. Engineered with precision and built to exacting standards, this propeller features a **three-blade, fixed-pitch design** optimized for smooth operation and enhanced thrust, making it ideal for both recreational boating and restoration projects. The **high-grade stainless steel construction** ensures durability against corrosion, saltwater exposure, and the rigors of frequent use, while the **smooth, aerodynamic blade contours** minimize cavitation and vibration, reducing wear on the engine and improving overall performance. Whether installed on a classic speedboat, a vintage fishing vessel, or a meticulously restored Quicksilver-powered craft, this propeller delivers a seamless blend of power and efficiency, allowing operators to relive the golden era of outboard innovation with confidence. Its **universal compatibility** with Mercury s MK20 and MK25 engines including models from the late 1960s through the 1970s makes it a sought-after replacement for collectors and enthusiasts seeking authenticity and peak mechanical integrity. With its timeless design and robust engineering, the **Mercury 48-20325A1** is not just a propeller it s a piece of maritime history, ensuring that every voyage feels like a throwback to an era when outboard motors redefined freedom on the water.

### Pros and Cons of Buying a Mercury 48-20325A1 Antique Outboard Motor Propeller (Mk20/Mk25/Quicksilver)

1. **Historical and Collectible Value** The Mercury 48-20325A1 propeller is associated with classic outboard motors, particularly the Mk20, Mk25, and Quicksilver series, which are highly sought after by collectors. If you own or restore a vintage Mercury boat, this propeller may be a critical original part, enhancing the boat s authenticity and resale value.

2. **Compatibility with Vintage Engines** These propellers were designed specifically for Mercury s mid-20th-century outboards, particularly the Mk20 (1950s) and Mk25 (1960s) models, as well as the Quicksilver series. If you re working on a period-correct restoration, this propeller will fit seamlessly without modifications.

3. **Durability and Craftsmanship** Mercury s early outboard propellers were built to last, often made from high-quality bronze or stainless steel. If the propeller is in good condition, it may still perform reliably, especially in smaller, slower boats where wear is less severe.

4. **Aesthetic Appeal** For enthusiasts, owning an original propeller from this era adds to the charm of a classic boat. The design reflects the engineering of the time, which may appeal to those who appreciate mechanical history.

5. **Potential for Resale or Trade-In** If you later decide to sell or trade in the boat, an original Mercury propeller in good condition could increase its marketability, especially among collectors.

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1. **Age and Wear** Propellers from this era are likely to show signs of corrosion, pitting, or blade erosion, particularly if they ve been exposed to saltwater or heavy use. Replacement may be necessary sooner rather than later, which could offset any initial savings.

2. **Limited Availability of Replacement Parts** Finding a matching propeller for a Mercury Mk20/Mk25/Quicksilver model can be difficult. If the propeller fails, sourcing a new one may require extensive searching, possibly at a premium price due to rarity.

3. **Performance Limitations** Modern propellers are optimized for efficiency, fuel economy, and reduced vibration. Older propellers may not perform as well in terms of speed, fuel consumption, or smoothness, especially if the boat is heavily loaded or used frequently.

4. **Maintenance Challenges** Restoring or repairing an antique propeller may require specialized tools, expertise, or even custom fabrication. If you lack experience with vintage marine parts, the process could become costly or time-consuming.

5. **Safety Concerns** Over time, propellers can develop cracks, loose fasteners, or other structural weaknesses. A failing propeller could pose a serious safety risk, particularly if it detaches while the engine is running.

6. **Cost vs. Modern Alternatives** If you re not committed to a full restoration, purchasing a new or used modern propeller (even a vintage-style aftermarket one) may be more practical. Modern propellers are often cheaper, more reliable, and easier to obtain.

7. **Insurance and Registration Issues** Some classic boat registrations or insurance policies may require original or period-correct components. While this can add value, it can also create bureaucratic hurdles if the propeller is not authentic or is modified.

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- **Restoring a classic boat** where authenticity is a priority.

- **A collector** who values historical integrity over modern convenience.

- **Will to invest time and effort** in maintaining or repairing the propeller.

However, if you are using the boat regularly, prioritize performance and reliability, or lack the resources to properly care for an antique part, a modern or aftermarket propeller may be a more practical choice.

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- **If restoring a classic boat:** Purchase the original propeller if it s in good condition. If not, seek a high-quality reproduction or a compatible vintage-style propeller from a reputable manufacturer (e.g., Mercury s own restorations or third-party suppliers like **Propeller Depot** or **Classic Propellers**). Ensure it matches the original specifications to avoid performance issues.

- **If using the boat regularly:** Consider a modern propeller designed for Mercury outboards of similar horsepower. Brands like **Mercury, Volvo Penta, or aftermarket options (e.g., **Propeller Depot, Bronco, or Marine Products**) offer durable, efficient alternatives that may cost less and require less maintenance.

- **If unsure:** Consult a marine mechanic or vintage boat specialist to assess whether the propeller is worth preserving or if replacement is the better long-term solution.

Ultimately, weigh the emotional and historical value of the original part against the practical needs of the boat s current use. For most active boaters, a balance between authenticity and functionality is ideal.

Details:

Here is just the right propeller for your Mercury antique outboard motor. Fits MK15, MK20, and MK25. A low pitch hub makes this prop easy to turn even with a weak engine. This will polish up to an eye popping shine with some time and effort.

Possible others.

part #: 4820325a1 prices

• $24.95-$79.95

specifications propboapar:

• for makes: Mercury
• mpn: 48-20325a1
• part type: Motor Propeller
• propeller pitch: 10.5
• propeller rotation: Rh
• country of origin: United States

general propboapar:

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

returns propboapar:

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

offer propboapar:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1
• started: March 19, 2026

payments propboapar:

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

seller propboapar:

• # reviews: 6389
• city: Altadena, California
• rating: 100.0%

shipping propboapar:

• transit: 4-7 Days
• type: Fixed
• service: USPS Priority Mail Padded Flat Rate Envelope
• carrier: USPS
• cost: $12.95
• class: Expedited

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