1. Propellers Boat Parts For Sale
  2. sku: 12576688530063892
  3. MERCURY 48-87572A

MERCURY 48-87572A Antique Outboard Motor Propeller Spline 7.5HP 9.8HP

fits make: Mercury. year: 1968-84.

48-87572a Mercury Antique Outboard Motor Propeller 7.5hp 9.8hp 1968-84 # 48-87572 8 Spline

( Manufacturer Part Number: 48-87572A ), ( Part Type: 5hp Motor Propeller ), ( Country Of Origin: United States )

Review MERCURY Antique Outboard Motor Propeller 7.5hp 9.8hp 48-87572 Spline fits 1968-84

The **Mercury 48-87572A Antique Outboard Propeller** is a meticulously crafted, high-performance marine propeller designed specifically for Mercury outboard motors ranging from **7.5 horsepower to 9.8 horsepower**, produced between **1968 and 1984**. This propeller features the original **48-spline shaft connection**, ensuring a secure and precise fit for classic Mercury engines, including models from the iconic **Mercury 7.5 and 9.8 HP series** of that era. Crafted from high-grade, corrosion-resistant materials, this propeller is built to withstand the demands of saltwater and freshwater environments while maintaining optimal efficiency and durability.

The **48-87572A** propeller boasts a **three-blade design**, engineered to maximize thrust and reduce cavitation, allowing for smoother operation and improved fuel economy on vintage boats. Its **precision-machined blades** are contoured for optimal water flow, reducing drag and enhancing acceleration while minimizing wear on the engine. The **spline shaft connection** ensures a tight, vibration-dampening fit, which is crucial for maintaining the longevity of both the propeller and the outboard motor. This propeller is an essential restoration or replacement part for boat enthusiasts seeking to preserve the performance and authenticity of their classic Mercury-powered vessels.

Whether restoring a beloved fishing boat, a classic runabout, or a vintage speedboat, the **Mercury 48-87572A propeller** delivers the reliability and efficiency expected from Mercury s legendary outboard technology. Its **universal compatibility** with 7.5HP and 9.8HP engines from the late 1960s through the early 1980s makes it a must-have for collectors and mechanics alike. With its **timeless engineering and robust construction**, this propeller ensures that your classic Mercury outboard will operate with the same power and precision it did when it was new making it a true piece of marine history.

### **Pros and Cons of Buying a Mercury 48-87572A Antique Outboard Motor Propeller (7.5HP/9.8HP, 1968 1984, 48-87572 Spline)**

#### **Pros**

1. **Compatibility with Vintage Mercury Engines** This propeller is designed specifically for Mercury outboards from 1968 to 1984, particularly the 7.5HP and 9.8HP models with the 48-87572 spline shaft. It ensures proper fit and function without requiring modifications.

2. **Authentic Performance** Original or well-maintained propellers will restore the original power and efficiency of the engine, allowing the boat to perform as it was intended.

3. **Historical and Collectible Value** If you own a classic Mercury outboard or are restoring one, this propeller may be a sought-after part, increasing the boat s resale or show value.

4. **Ease of Installation** Since it matches the original spline configuration, installation is straightforward for someone with basic mechanical skills.

5. **Potential Cost Savings** If the propeller is in good condition, purchasing it used can be significantly cheaper than buying a new one, especially if you re restoring a vintage boat.

6. **Customization Options** If the propeller is adjustable or comes in different pitch options, you may be able to fine-tune performance for specific applications (e.g., fishing, cruising, or racing).

7. **Support for Classic Boating Culture** Owning and maintaining original parts helps preserve the legacy of vintage marine engines, appealing to enthusiasts who value authenticity.

---

#### **Cons**

1. **Age and Wear** Propellers from this era may show signs of corrosion, pitting, or blade damage, especially if they ve been exposed to saltwater or improper storage. This could lead to reduced efficiency or failure over time.

2. **Limited Availability of Replacement Parts** If the propeller is damaged, finding exact replacements (especially for blades or spline components) may be difficult, as modern manufacturing standards differ from vintage parts.

3. **Potential for Misalignment or Damage** If the spline shaft or propeller hub is worn, improper installation could strip threads or cause the propeller to loosen, leading to engine damage.

4. **Performance Degradation** Over time, even well-maintained propellers lose efficiency due to wear. A worn propeller may not provide the same speed or fuel economy as a new one.

5. **Corrosion Risks** Older propellers, particularly those from saltwater use, may have internal corrosion that weakens structural integrity. This could lead to sudden failure while operating.

6. **Higher Maintenance Requirements** Vintage propellers may require more frequent inspections and polishing to maintain performance, unlike modern propellers with corrosion-resistant coatings.

7. **Resale Value Depreciation** Unlike the engine itself, propellers are consumable parts. Even in good condition, they may not hold significant resale value unless the boat is a rare or highly sought-after model.

8. **Compatibility Issues with Modern Modifications** If the boat has been modified with aftermarket components (e.g., different shaft lengths or engine upgrades), the original propeller may not fit or perform optimally.

---

### **Conclusion and Recommendation**

Buying a **Mercury 48-87572A propeller** for a vintage 7.5HP/9.8HP outboard from 1968 1984 can be a worthwhile investment if you prioritize authenticity, historical accuracy, or are restoring a classic boat. The propeller s compatibility with original engines and its potential to enhance performance make it a valuable part for enthusiasts.

However, the risks of corrosion, wear, and limited availability of replacements mean that this purchase should be approached with caution. **Before buying:**

- **Inspect the propeller thoroughly** for cracks, pitting, or spline damage.

- **Check the spline shaft** for wear or corrosion that could affect installation.

- **Consider the condition of the blades** polished or damaged blades will affect performance.

- **Verify the propeller s pitch** (if adjustable) to ensure it matches your intended use (e.g., higher pitch for speed, lower for torque).

- **Compare costs** if the propeller is severely worn, restoring or replacing it may be more economical than buying a used one.

**Recommendation:**

- **If restoring a vintage Mercury outboard and authenticity is a priority**, purchasing a **well-documented, high-quality used propeller** (preferably from a trusted seller with photos and history) is justified.

- **If the boat is primarily for casual use**, weigh the cost of maintenance against potential performance gains. In some cases, a **modern replacement propeller** (if compatible) may offer better durability and efficiency.

- **For collectors or show boats**, the propeller s historical value may outweigh practical concerns, making it a worthwhile addition to the restoration.

Ultimately, the decision depends on your **budget, technical comfort level, and whether you value original parts over modern alternatives**. If you proceed, ensure the propeller is in **good structural condition** and fits securely before use.

Details:

From 1968 to 1984 these engines had 8 splines. Here is a good used Mercury antique outboard motor propeller. Mercury part number # 48-87572A. 8 38ths diameter by pitch.

I will always combine orders to save buyers on shipping. There are thousands of these good little outboards still running and parts especially propellers getting hard to find. These is made for Mercury model 75 and Merc110. Look at the photos and message with questions.

part #: 4887572a prices

  • $29.95-$79.00

specifications propboapar:

  • for makes: Mercury
  • for years: 1968-84
  • mpn: 48-87572a
  • part type: 5hp Motor Propeller
  • country of origin: United States

returns propboapar:

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

general propboapar:

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

payments propboapar:

  • other
  • wallet: Paypal
  • credit card: Visa

shipping propboapar:

  • service: USPS Priority Mail Padded Flat Rate Envelope
  • class: Expedited
  • cost: $14.00
  • transit: 3-7 Days
  • type: Fixed
  • carrier: USPS

offer propboapar:

  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
  • started: May 27, 2026

seller propboapar:

  • city: Altadena, California
  • rating: 100.0%
  • # reviews: 6521
for makes: mercury, for years: 1968-84, part type: 5hp motor propeller, country of origin: united states,
category: boat parts > propellers, sku: 12576688530063892,
Mercury 48-87572A Is Similar To:
propboapar logo
2 offers $29.95–$79.00 USD
  • Used. Offer #1 priced at $29.95 + $14.00 shipping estimate = $43.95* total. +$14.00 shipping
  • New. Offer #2 priced at $79.00 + $16.40 shipping estimate = $95.40* total. Mercury Black Max Aluminum Propeller 48-19636A10 10 3/8 Diameter 9.5 Pitch RH.+$16.40 shipping

Copyright © propboapar.com