OMC 0307609 Screw Outboards R3839 3I

( Brand: Omc ), ( Manufacturer Part Number: 0307609 ), ( Part Type: Screw )

Review OMC Screw Evinrude Johnson Outboards Qty 3i

The **OMC 0307609 307609 Screw** is a precision-engineered, high-performance replacement part designed exclusively for **Evinrude Johnson Outboards**, specifically tailored to models featuring the **R3839 3i** drive system. This screw, crafted from durable, corrosion-resistant materials, plays a critical role in the proper functioning of the outboard s drive mechanism, ensuring smooth and efficient power transmission between the engine and the propeller. Engineered to meet strict OEM (Original Equipment Manufacturer) standards, this screw is built to withstand the demanding conditions of marine environments, including exposure to saltwater, varying temperatures, and constant mechanical stress. Its design incorporates a **right-hand thread** for secure and reliable installation, preventing backlash and ensuring optimal performance during operation. Whether used for routine maintenance or as a direct replacement for a worn or damaged component, this screw guarantees a tight, leak-free fit, reducing the risk of fluid leaks and maintaining the integrity of the outboard s hydraulic system. Ideal for boat owners and professionals who demand reliability and longevity in their marine equipment, this part exemplifies the precision and quality expected from OMC s legacy of innovation in outboard motor technology.

### **Pros and Cons of buying a OMC 0307609 (Evinrude/Johnson R3839 3i) Outboard Motor**

1. **Reliability and Brand Reputation** Evinrude/Johnson (now part of OMC) has a long-standing history of producing durable outboard motors, especially in the mid-size range. The R3839 3i is part of their proven line of 3-cylinder engines, known for smooth operation and longevity when properly maintained.

2. **Fuel Efficiency** As a three-cylinder engine, it generally offers better fuel economy compared to larger V-twin or V-4 outboards of similar horsepower. This makes it cost-effective for recreational boating, daily use, or small to medium-sized boats.

- Small to mid-sized fishing boats (up to 16 20 feet)

- Tender boats for larger vessels

- Light cruising, wakeboarding, or small water sports

- Kayak/canoe launches or personal watercraft (PWC) tenders

4. **Ease of Maintenance** Three-cylinder engines tend to have fewer moving parts than V-twin or V-4 designs, which can simplify maintenance tasks like oil changes, spark plug replacements, and general upkeep.

5. **Affordability** Compared to higher-horsepower outboards, this motor is relatively inexpensive to purchase, insure, and maintain. It also consumes less fuel, reducing long-term operating costs.

6. **Compatibility with Small Boats** The **3i (IntelliDrive)** model includes electronic fuel injection and throttle control, which improves performance and makes it easier to integrate with modern boat systems. It s well-suited for boats that don t require excessive power.

7. **Resale Value** Well-maintained OMC/Evinrude/Johnson outboards hold their value reasonably well, especially if they come with service records.

8. **Quiet Operation** Three-cylinder engines are generally quieter than V-twin or V-4 counterparts, which can be beneficial for stealth fishing or peaceful cruising.

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- Large boats (over 20 feet) unless they are very light and efficient.

- High-speed planing or heavy loads (e.g., towing a wakeboarder or skier on a heavy boat).

- Boats requiring significant acceleration or rough-water performance.

If you need more power, you may need to upgrade to a **50 hp or higher** outboard.

2. **Potential for Overloading** Running the motor at or near its maximum capacity (e.g., towing a heavy load or in rough conditions) can lead to **premature wear**, reduced fuel efficiency, or even failure. It s best suited for **light to moderate use**.

- **Fuel system cleaning** (to prevent clogs in the fuel injectors).

- **Spark plug replacement** (every 100 200 hours, depending on use).

- **Oil and filter changes** (every 50 100 hours or as recommended).

- **Propeller and lower-unit maintenance** (to prevent corrosion and damage).

Neglecting maintenance can lead to **costly repairs**.

4. **Age and Potential Wear** If the motor is **older (pre-2010s)**, it may lack modern fuel efficiency improvements, emissions controls, or electronic diagnostics found in newer models. Check for **service history** to avoid hidden issues.

- Large trailers or heavy loads.

- Repeatedly accelerating quickly (e.g., for wakeboarding or water skiing).

- Boats with excessive weight distribution.

6. **Noise and Vibration in Some Cases** While generally quieter than V-twin engines, **poorly maintained or worn-out motors** can develop **excessive vibration or noise**, which may require tuning or part replacement.

7. **Fuel Type Dependence** Older models may run on **regular gasoline**, but newer **IntelliDrive (3i) models** often require **premium or high-test fuel** for optimal performance. Check the owner s manual to avoid fuel-related issues.

8. **Limited Aftermarket Support** Compared to larger OMC/Johnson engines, **parts and service for this specific model may be less readily available** in some regions, though OMC still supports older models.

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The **OMC 0307609 (Evinrude/Johnson R3839 3i)** is a **solid, reliable choice** for **small to mid-sized boats** where **moderate power and fuel efficiency** are prioritized over high performance. It excels in **fishing, cruising, and light recreational use** but is **not suitable for heavy loads, high-speed planing, or towing**.

**Small fishing boats (under 20 ft)**

**Tenders for larger vessels**

**Kayak/canoe launches**

**Light cruising and leisure boating**

**Budget-conscious buyers who prioritize reliability over power**

**Boats requiring 50 hp for planing**

**Heavy towing or repeated high-speed use**

**Boaters who need frequent high-performance acceleration**

**Rough-water or offshore applications**

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- You have a **small to medium boat** (under 20 ft) that doesn t require excessive power.

- You primarily use it for **fishing, cruising, or light recreational activities**.

- You are **willing to maintain it properly** (oil changes, fuel system care, etc.).

- You want a **cost-effective, reliable engine** without the complexity of larger outboards.

- You need **more power (50 hp or higher)** for planing or towing.

- Your boat is **larger or heavier**, and you require **better acceleration**.

- You plan to use the motor **heavily in rough conditions** (where a more robust engine may be needed).

- You want **newer fuel efficiency and emissions technology** (consider a **2015 model** if available).

This is a **great budget-friendly outboard** for the right application. If your needs align with its **38 hp capabilities**, it will provide **years of dependable service** with proper care. However, if you require **more power or performance**, upgrading to a **50 hp or higher OMC/Johnson outboard** would be a better long-term investment. Always **inspect the motor thoroughly** (check for rust, leaks, and service records) before purchasing, especially if buying used.

Details:

307609 0307609 OMC Screw Evinrude Johnson Outboards QTY 6, This is a NEW NOS part.

part #: 0307609 prices

• $7.09-$21.00

specifications ouboaen:

• for makes: Evinrude, Johnson, Omc
• brand: Omc
• mpn: 0307609
• part type: Screw

general ouboaen:

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

offer ouboaen:

• options: Ship-to-home
• sold: 0
• started: April 5, 2026
• availability: In Stock
• quantity: 1

shipping ouboaen:

• carrier: USPS, UPS
• cost: $15.25
• service: USPS Ground Advantage, UPS Ground Saver
• transit: 4-8 Days
• type: Calculated
• class: Standard, Economy

returns ouboaen:

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

seller ouboaen:

• # reviews: 610
• city: Remsenburg, New York
• rating: 99.8%

payments ouboaen:

• credit card: Visa
• wallet: Apple-pay
• other

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