1. Boat Outboard Engines To Buy
  2. sku: 23556588773558751
  3. OMC 0376484

OMC 0376484 Lower Unit Gear Prop 15HP Assy.

fits make: Johnson, Evinrude, Omc. year: 1956.

0277583 Omc 0376484 1956 Johnson Evinrude 15hp Lower Unit Gear Case Assy. Prop #

( Brand: Omc ), ( Manufacturer Part Number: 0376484 ), ( Part Type: Unit Gear Prop Case ), ( Stroke: 2-stroke ), ( Engine Hp : 15hp ), ( Country Of Origin: United States )

Review OMC Johnson Evinrude 15hp Lower Unit Gear Case Assy. Prop fits 1956

The **OMC 0376484 1956 Johnson Evinrude 15HP Lower Unit Gear Prop** is a meticulously crafted, high-performance marine propulsion system designed for classic outboard engines from the golden era of boating. This lower unit, originally paired with the legendary 1956 Johnson Evinrude 15HP two-stroke outboard, represents a rare and sought-after piece of boating history, blending vintage engineering with enduring reliability. Crafted from durable marine-grade materials, including precision-machined steel and corrosion-resistant alloys, this lower unit features a robust **gear-driven propeller shaft** that ensures smooth, efficient power transfer from the engine to the water. The **integrated gearcase** houses a hardened steel gear train, meticulously balanced to minimize vibration and maximize torque delivery, making it ideal for both leisurely cruising and spirited fishing excursions. The **lower unit housing** is sealed with a reliable gasket system, protecting internal components from water intrusion while maintaining optimal lubrication for extended service life. This unit is equipped with a **standard 15HP Johnson Evinrude propeller shaft** with a threaded connection, allowing for easy installation of compatible propellers, including classic **three-blade or two-blade designs**, depending on the intended use whether for smooth planing or deep-water fishing. The **1956 model year** designation signifies its place in the evolution of outboard propulsion, reflecting the era s emphasis on simplicity, durability, and performance without modern complexities. Whether restoring a vintage boat or seeking an authentic replacement for a collector s piece, this lower unit is a testament to Johnson s legacy of innovation, offering a perfect blend of historical charm and functional excellence. Its compatibility with original 1956 Evinrude 15HP engines and aftermarket restorations ensures it remains a prized component for enthusiasts and mechanics alike.

### **Pros and Cons of buying a OMC 0376484 (1956 Johnson Evinrude 15HP Lower Unit with Gear Prop)**

#### **Pros:**

1. **Classic Vintage Engine** The 1956 Johnson Evinrude 15HP is a well-known, reliable outboard motor from a respected brand. It has a strong following among collectors and enthusiasts who appreciate its historical value and craftsmanship.

2. **Proven Reliability** Older Johnson/Evinrude engines, particularly from the mid-20th century, were built with durable materials and solid engineering. Many still function well if properly maintained.

3. **Potential for Restoration** If the lower unit is in decent condition, restoring it could yield a fully functional, high-performance engine. Many parts are still available through aftermarket suppliers or original Johnson dealers.

4. **Lower Cost Compared to Modern Engines** Since it s an older model, the initial purchase price is likely much lower than a new or even a modern used outboard of similar horsepower.

5. **Collectible Value** If you re interested in classic boating history, this engine could appreciate in value over time, especially if it s in good condition and well-documented.

6. **Simpler Mechanics** Older engines often have fewer electronic components, making them easier to diagnose and repair without advanced tools.

7. **Compatibility with Older Boats** If you already own a vintage boat that requires a 15HP outboard, this lower unit could be a perfect fit without needing modifications.

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#### **Cons:**

1. **Age-Related Wear and Tear** At 68 years old, the lower unit may have significant internal wear, such as worn gears, bearings, or seals. This could lead to leaks, poor performance, or complete failure if not thoroughly inspected.

2. **Limited Availability of Original Parts** While some parts are still available, finding exact replacements for a 1956 model may be difficult. You may need to rely on aftermarket or universal parts, which could be less reliable.

3. **Fuel and Emissions Concerns** Older engines often run on leaded fuel or require carburetor adjustments, which can be less efficient and more polluting than modern two-stroke or four-stroke outboards.

4. **Maintenance Requirements** Vintage engines typically require more frequent maintenance, such as oil changes, spark plug adjustments, and carburetor cleaning, to keep them running smoothly.

5. **Potential for Hidden Damage** Without a professional inspection, you may not discover issues like cracked cases, corroded internals, or seized components until it s too late.

6. **Resale Value Uncertainty** While some classic engines hold value, others depreciate quickly if they re not in pristine condition or lack documentation.

7. **Performance Limitations** Compared to modern outboards, this engine will be less powerful, less fuel-efficient, and may lack modern conveniences like electric start or trim control.

8. **Legal and Environmental Restrictions** Some areas have banned or restricted older two-stroke engines due to pollution concerns, so check local regulations before purchasing.

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### **Conclusion:**

Buying a 1956 Johnson Evinrude 15HP lower unit with a gear prop can be a rewarding experience if you re looking for a vintage piece, a restoration project, or a budget-friendly engine for a classic boat. However, it requires careful consideration of its age, potential repair costs, and whether you re prepared for the maintenance demands of an older engine.

If you re an experienced mechanic with access to parts and tools, and you re willing to invest time in restoring it, this could be a great find. If you re looking for a hassle-free, reliable engine for daily use, a modern or well-maintained used outboard may be a better choice.

### **Recommendation:**

- **If you re a collector or restoration enthusiast:** Purchase it with a thorough inspection (or have a marine mechanic do one) to assess its condition. Budget for potential repairs and consider buying parts in advance.

- **If you need a reliable engine for regular use:** Look for a newer used outboard (even if older than 1956) that has a known service history and fewer age-related risks.

- **If you re unsure about the engine s condition:** Negotiate the price lower or request a refundable inspection fee to cover potential repair costs.

Always run a **marine survey** or have a trusted mechanic evaluate the lower unit before finalizing the purchase to avoid costly surprises.

Details:

Prop # 0277583, Shift shaft O-ring has been replaced and the lower housing case ring. New plate and impeller. Gear case came off a 1956 15016-03591 fast twin15Hp Evinrude. Unit is being shipped with NO OIL.

part #: 0376484 price

  • $250.00

specifications ouboaen:

  • for makes: Johnson, Evinrude, Omc
  • for years: 1956
  • brand: Omc
  • mpn: 0376484
  • part type: Unit Gear Prop Case
  • stroke: 2-stroke
  • engine hp : 15hp
  • country of origin: United States

returns ouboaen:

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

seller ouboaen:

  • # reviews: 1429
  • rating: 99.3%
  • city: Gautier, Mississippi

payments ouboaen:

  • other
  • credit card: Mastercard
  • wallet: Paypal

offer ouboaen:

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

shipping ouboaen:

  • carrier: USPS, UPS, FedEx
  • cost: $44.75
  • service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy
  • transit: 5-11 Days
  • class: Standard, Economy
  • type: Calculated

general ouboaen:

  • Boat Parts > Outboard Engines Components > Complete Outboard Lower Units
  • condition: Used
for makes: johnson, evinrude, omc, for years: 1956, part type: unit gear prop case, stroke: 2-stroke, engine hp: 15hp, country of origin: united states,
category: boat parts > outboard engines components > complete outboard lower units, sku: 23556588773558751,
Omc 0376484 Is Similar To:
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1 offer $250.00 USD
  • Used. Offer #1 priced at $250.00 + $44.75 shipping estimate = $294.75* total. Prop # .+$44.75 shipping

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