MERCURY 896688 Power Sensor Verado 135-250HP 4-STROKE 0720

( Manufacturer Part Number: 896688 ), ( Part Type: Sensor ), ( Disclaimer: All Parts Come As Pictured. )

Review MERCURY Power Trim Sensor Verado 135-250hp 4-stroke Month Warranty

The **Mercury 2007 896688 Power Sensor** is a high-performance, precision-engineered component designed specifically for Mercury Verado outboard motors in the **135 250 HP 4-stroke (0720 series)** range, ensuring optimal fuel delivery, throttle response, and overall engine efficiency. Engineered to meet the demanding requirements of modern marine applications, this power sensor plays a critical role in the electronic fuel injection (EFI) system, providing real-time feedback to the engine s control module to maintain consistent power output, reduce emissions, and enhance throttle smoothness. Crafted from durable, corrosion-resistant materials, the sensor is built to withstand the harsh marine environment, including exposure to saltwater, humidity, and temperature fluctuations, while delivering reliable performance over thousands of hours of operation. Its compact yet robust design integrates seamlessly with the Verado s advanced fuel injection system, ensuring precise metering of fuel based on engine load, RPM, and operating conditions. Whether deployed in high-performance cruisers, fishing boats, or recreational vessels, this power sensor contributes to a smoother, more responsive driving experience by optimizing fuel delivery and reducing unnecessary wear on critical engine components. Ideal for both new installations and replacements, the **Mercury 896688** is a vital part of maintaining the performance and longevity of your Verado outboard, ensuring it operates at peak efficiency while adhering to modern emissions standards.

The **Mercury 896688 Power Sensor** (Verado 135 250 HP, 4-stroke, 0720) is a popular outboard motor sensor used for fuel injection tuning and performance optimization. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Mercury 896688 Power Sensor**

1. **Compatibility with Mercury Verado Engines**

The sensor is specifically designed for Mercury Verado 135 250 HP 4-stroke outboards from the 2007 2020 model years. This ensures a direct fit without modification, making installation straightforward for owners of these engines.

2. **Enhanced Performance Tuning**

The Power Sensor provides real-time data on engine performance, allowing for precise fuel injection tuning. This can improve throttle response, power delivery, and overall efficiency, especially when paired with tuning software like **Mercury s Power Trim** or third-party tools like **SeaFox, Power Trim Pro, or TunerPro**.

3. **Durability and Reliability**

Mercury s outboard components are generally built to withstand marine environments, including saltwater corrosion and vibration. The Power Sensor is no exception, offering long-term durability when properly maintained.

4. **Aftermarket Support and Customization**

The sensor is widely used in the marine tuning community, meaning there is extensive aftermarket support, including wiring harnesses, mounting kits, and software solutions. This makes it easier to integrate with other performance upgrades (e.g., exhaust systems, fuel injectors, or ECU remapping).

5. **Cost-Effective Upgrade**

Compared to full ECU replacements or high-end tuning systems, the Power Sensor is relatively affordable. It serves as a cost-effective way to unlock additional power and tuning potential without a complete engine overhaul.

6. **Easy Installation**

The sensor is designed for plug-and-play installation, often requiring only basic wiring and mounting. Many users report being able to install it themselves with minimal tools, reducing labor costs.

7. **Improved Fuel Efficiency (When Tuned Properly)**

With proper tuning, the sensor can help optimize fuel delivery, potentially improving fuel economy in certain conditions, though this depends on the specific tuning approach.

8. **Compatibility with Tuning Software**

The sensor works seamlessly with Mercury s official tuning software (e.g., **Power Trim**) as well as third-party tools, giving users flexibility in how they adjust their engine s performance.

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### **Cons of the Mercury 896688 Power Sensor**

1. **Limited to Specific Engine Models**

The sensor is **only compatible with Mercury Verado 135 250 HP 4-stroke engines from 2007 2020**. If you have a different engine (e.g., older Verado, FourStroke, or another brand), this sensor will not work.

2. **Requires Tuning Knowledge**

While the sensor itself is simple to install, **proper tuning requires understanding of fuel injection systems, ECU mapping, and potentially software adjustments**. Poor tuning can lead to **poor performance, rough idling, or even engine damage** if fuel delivery is not calibrated correctly.

3. **Potential Voidance of Warranty**

Installing and tuning an aftermarket sensor may **void the manufacturer s warranty** on the engine, especially if Mercury s official tuning software is not used. This is a risk for owners who rely on warranty coverage.

4. **Dependence on Software and Tuning Tools**

Without the right tuning software (e.g., **Power Trim, TunerPro, or SeaFox**), the sensor s full potential cannot be realized. Some users may need to invest in additional software or hardware (e.g., OBD-II adapters, tuning cables).

5. **Possible Compatibility Issues with Aftermarket Parts**

If you plan to install other performance modifications (e.g., larger injectors, turbochargers, or exhaust systems), the Power Sensor may need **additional tuning adjustments** to work optimally with those changes. Improper pairing can lead to **lean or rich fuel mixtures**, reducing performance or causing damage.

6. **Learning Curve for DIY Tuning**

While installation is straightforward, **tuning requires practice and knowledge**. Beginners may struggle with calibrating the sensor correctly, leading to suboptimal results or engine issues. Professional tuning services may be necessary for best results.

7. **No Guarantee of Power Gains**

The actual power increase depends on **engine condition, fuel quality, and tuning expertise**. Some users report noticeable gains, while others see minimal improvements, especially if the engine is already well-maintained.

8. **Potential for Sensor Failure Over Time**

Like any electronic component, the Power Sensor can fail due to **water damage, electrical issues, or wear**. While Mercury components are generally reliable, long-term exposure to marine conditions may require occasional replacement.

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### **Conclusion**

The **Mercury 896688 Power Sensor** is a **valuable tool for Verado 135 250 HP 4-stroke owners** looking to enhance performance through tuning. Its **direct compatibility, ease of installation, and aftermarket support** make it a popular choice among marine enthusiasts. However, it is **not a plug-and-play power upgrade** it requires **proper tuning knowledge or professional assistance** to avoid issues.

If you are **technically inclined, willing to invest time in learning tuning software, and have a compatible Verado engine**, this sensor can provide **noticeable performance improvements**. However, if you **lack tuning experience, want a simple power boost without maintenance, or have a non-Verado engine**, this may not be the best option.

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### **Recommendation**

You own a **Mercury Verado 135 250 HP 4-stroke (2007 2020)**.

You are **comfortable with or willing to learn tuning software** (e.g., Power Trim, TunerPro).

You plan to **invest in proper tuning** (either DIY with research or professionally).

You want a **cost-effective way to unlock extra power and throttle response**.

You have a **different engine model** (not Verado 135 250 HP 4-stroke).

You **lack tuning experience** and cannot safely calibrate the sensor.

You **prioritize simplicity** and want a pre-tuned performance upgrade (consider a **pre-tuned engine or full ECU remap** instead).

You **cannot void your engine warranty** (if Mercury s official tuning is not used).

- If you want **pre-tuned performance**, look into **Mercury s official Power Trim service** or **reputable tuning shops**.

- If you re open to **full ECU remapping**, consider **third-party ECU solutions** (e.g., **SeaFox, Power Trim Pro**) that may offer more flexibility.

- If your engine is **older or heavily modified**, ensure the sensor is compatible with your specific model year and modifications.

For the right user (a Verado owner with tuning interest), the **Mercury 896688 Power Sensor is a smart, affordable upgrade**. For others, it may be **too niche or complex** without proper tuning expertise. Always **back up your ECU settings** before tuning and consider professional help if unsure.

Details:

Mercury / Mariner Verado 150HP 4-Cylinder V6 S/N 1B381712 2B576734. Mercury / Mariner Power Trim Sensor OEM Part #896688 896688001. You are purchasing a genuine Mercury OEM Power Trim Sensor, part number 896688 also listed as 896688001, removed from running motor. Compare the connector and wire configuration on your original unit before installing.

Normal signs of wear consistent with age and use. This sensor monitors trim position and provides accurate angle readings to the engine management gauge system. Fitment: Fits the following Mercury and Mariner 4-stroke motors: / Verado 135HP 4-Cylinder S/N 1B227000 2B576734. Condition: Used, in good condition.

part #: 896688 prices

• $24.59-$62.99

specifications ouboaen:

• for makes: Mercury
• mpn: 896688
• part type: Sensor
• disclaimer: All Parts Come As Pictured.

returns ouboaen:

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

seller ouboaen:

• rating: 99.5%
• # reviews: 36804
• city: Gardena, California

payments ouboaen:

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

shipping ouboaen:

• class: Standard
• cost: $0.00
• type: Fixed
• service: USPS Ground Advantage
• carrier: USPS
• transit: 5-8 Days

general ouboaen:

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

offer ouboaen:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: May 15, 2026
• availability: In Stock

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