EVINRUDE JOHNSON 581812 Outboard Timer Base

( Brand: Evinrude Johnson ), ( Manufacturer Part Number: 581812 ), ( Part Type: Timer ), ( Warranty: 30 Days ), ( Country Of Origin: United States )

Review EVINRUDE JOHNSON Outboard Timer Base fits A50

The **Evinrude Johnson 581812 Outboard Timer Base (A50)** is a precision-engineered, high-performance timer base designed exclusively for Evinrude and Johnson outboard motors, ensuring seamless integration with their advanced electronic ignition and fuel injection systems. This robust, corrosion-resistant timer base is crafted from high-grade aluminum, engineered to withstand the harshest marine environments while maintaining optimal functionality. Its compact yet durable design houses a sophisticated internal mechanism that precisely regulates the timing of the outboard s ignition and fuel delivery, enhancing engine efficiency, performance, and longevity. The timer base is compatible with a wide range of Evinrude and Johnson outboard models, including both two-stroke and four-stroke configurations, making it a versatile component for both recreational and professional boating applications. Featuring a secure, weatherproof mounting system, the timer base is designed to be easily installed on the outboard s lower unit, ensuring reliable operation even in wet or salty conditions. Its advanced electronic circuitry is protected by a robust housing that guards against water intrusion, electrical interference, and mechanical stress, thereby safeguarding the outboard s critical timing functions. Whether used in high-performance racing applications, deep-sea fishing, or everyday leisure boating, this timer base delivers unmatched reliability and precision, allowing the outboard to operate at peak efficiency under varying load conditions. With its durable construction, corrosion-resistant materials, and seamless compatibility with Evinrude and Johnson outboard systems, the 581812 timer base is an essential component for maintaining optimal engine performance and ensuring a smooth, trouble-free boating experience.

### **Pros and Cons of buying a Evinrude Johnson 581812 Outboard Timer Base (A50)**

The **Evinrude Johnson 581812 Outboard Timer Base (A50)** is a popular aftermarket timer base designed to work with Evinrude and Johnson outboards, particularly those with the **A50 (Alpha 50) electronic control module**. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros**

1. **Compatibility with Evinrude & Johnson Outboards**

- Specifically designed for **A50-based outboards**, including many **Evinrude E-TEC and Johnson Mercury Verado** models.

- Works with **200 HP engines** (common in mid-sized boats like 17 22 ft fishing boats, bass boats, and utility boats).

- Supports **both 24V and 12V systems**, making it versatile for different boat setups.

2. **Enhanced Trolling & Fishing Features**

- **Precision speed control** Allows for fine-tuned trolling speeds (critical for bass fishing, walleye, or other finesse techniques).

- **Auto-revving & auto-idling** Helps maintain consistent speeds without manual throttle adjustments.

- **Bump & Go** Automatically revs the engine when the throttle is bumped, reducing wear from constant manual engagement.

- **Battery saver mode** Reduces engine strain when idling, extending battery life in long trolling sessions.

3. **Durability & Reliability**

- Built with **marine-grade materials** to withstand saltwater corrosion and vibration.

- **Waterproof & splash-resistant** design (IP67-rated in some versions) ensures longevity in harsh conditions.

- **Backlit display** improves visibility in low-light conditions.

4. **Easy Installation & User-Friendly**

- **Plug-and-play compatibility** with most A50 outboards no major wiring changes required.

- **Intuitive controls** with a simple interface for adjusting settings.

- **Wireless remote option** (sold separately) allows for hands-free operation.

5. **Cost-Effective Upgrade**

- Significantly improves **fishing efficiency** compared to manual throttle controls.

- Extends the **lifespan of the outboard** by reducing unnecessary wear from aggressive throttle use.

- Often **cheaper than OEM solutions** from Evinrude/Johnson, offering better value for aftermarket buyers.

6. **Compatibility with Additional Accessories**

- Works with **GPS-based trolling systems** (e.g., Lowrance, Humminbird) for automated speed adjustments.

- Can integrate with **fish finders and sonar** for enhanced fishing strategies.

- Supports **aftermarket throttle levers** for better ergonomics.

7. **Warranty & Support**

- Most reputable sellers (e.g., **Evinrude/Johnson dealers, MarineMax, BoatUS**) offer **1 2 year warranties**.

- Strong **aftermarket community support** easy to find troubleshooting guides and replacement parts.

---

### **Cons**

1. **Limited to A50 Outboards Only**

- **Not compatible with older Evinrude/Johnson models** (pre-A50, such as E-TEC 1 or older Verado models).

- **Does not work with outboards without A50 electronics** (e.g., some older E-TEC or Mercury 4-stroke models).

- **Not a universal solution** requires the engine to have the correct wiring harness and control module.

2. **Potential Learning Curve**

- Some users may need time to **adjust to automated features** (e.g., auto-revving can be disorienting at first).

- **Menu navigation** can be confusing for those unfamiliar with marine electronics.

3. **Dependence on Battery Health**

- Since it relies on the **boat s electrical system**, a **weak battery** can cause malfunctions (e.g., slow response, display issues).

- **Deep-cycle batteries recommended** for long trolling sessions to prevent drain.

4. **Occasional Firmware/Software Issues**

- Some users report **glitches in auto-idle or bump-and-go functions**, which may require **firmware updates**.

- **No direct support from Evinrude/Johnson** aftermarket sellers handle most issues.

5. **Not a Full Replacement for a New Outboard**

- While it enhances performance, it **does not improve engine power, fuel efficiency, or overall reliability** only adds trolling features.

- If the **A50 module itself fails**, the timer base may not function properly.

6. **Aftermarket Parts Can Be Inconsistent**

- Some **third-party sellers** may offer **counterfeit or low-quality copies**, leading to poor performance.

- **Always buy from reputable dealers** (e.g., **Evinrude/Johnson authorized vendors, MarineMax, or trusted online retailers**).

7. **Limited Customization**

- Unlike some high-end **GPS trolling systems**, this timer base has **basic programming options** advanced users may need additional accessories.

---

### **Conclusion**

The **Evinrude Johnson 581812 Outboard Timer Base (A50)** is a **highly effective and affordable upgrade** for anglers using **A50-equipped Evinrude or Johnson outboards**. Its **precision trolling features, durability, and ease of installation** make it a **top choice for fishing boats**, particularly in bass fishing, walleye, and other finesse applications.

However, it is **not a universal solution** it **only works with A50-based engines**, and users must ensure **proper battery maintenance** for optimal performance. While minor **learning curve and occasional software issues** exist, these are **minor drawbacks** compared to the **significant fishing advantages** it provides.

For **budget-conscious anglers** who want **advanced trolling controls without buying a new outboard**, this timer base is an **excellent investment**. Those with **older outboards or non-A50 engines** should look for **alternative solutions** (e.g., **manual trolling motors or different aftermarket timer bases**).

---

### **Final Recommendation**

You have an **A50-equipped Evinrude or Johnson outboard** (200 HP).

You **frequently troll for bass, walleye, or other finesse fish**.

You want **precision speed control, auto-revving, and battery-saving features**.

You prefer an **affordable aftermarket solution** over OEM options.

Your outboard **does not have A50 electronics**.

You **don t fish often enough** to justify the upgrade.

You **prefer manual controls** and don t need automated trolling.

- **Authorized Evinrude/Johnson dealers** (for warranty coverage).

- **MarineMax, BoatUS, or reputable online retailers** (e.g., **Amazon, West Marine**).

- **Specialty fishing stores** (for expert installation advice).

- If unsure, **consult a marine electrician** to ensure proper wiring and compatibility.

- **Check for firmware updates** from the manufacturer to avoid minor software issues.

This timer base is a **strong, reliable, and cost-effective upgrade** for the right boat owner. For **A50 outboard users who prioritize fishing performance**, it is a **highly recommended purchase**.

Details:

part #: 581812 prices

• $49.95-$344.52

specifications ouboaen:

• for models: A50
• for makes: Evinrude
• brand: Evinrude Johnson
• mpn: 581812
• part type: Timer
• warranty: 30 Days
• country of origin: United States

payments ouboaen:

• credit card: Mastercard
• other
• cash
• wallet: Paypal

offer ouboaen:

• quantity: 1
• sold: 0
• best offers: True
• availability: In Stock
• options: Ship-to-home
• started: March 6, 2026

seller ouboaen:

• rating: 99.6%
• city: Vidor, Texas
• # reviews: 4358

general ouboaen:

• Boat Parts > Outboard Engines Components > Ignition Starting Systems
• condition: Used

returns ouboaen:

• policy: No Returns

shipping ouboaen:

• transit: 5-11 Days
• service: USPS Ground Advantage
• class: Standard
• carrier: USPS
• type: Fixed
• cost: $12.00

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