MERCURY 855998A09 Outboard Power Tilt Unit 829729T2 150-250HP

( Manufacturer Part Number: 855998A09 ), ( Part Type: Unit ), ( Warranty: 30 Day ), ( Country Of Origin: United States )

Review MERCURY Used Outboard Power Tilt And Trim Unit Assy 150-250hp

The **Mercury 855998A09 829729T2 Outboard Power Tilt Unit** is a precision-engineered, high-performance component designed exclusively for Mercury outboard motors in the **150 250 horsepower** range, ensuring seamless operation and enhanced maneuverability for boats of varying sizes and applications. This tilt unit is crafted from durable, marine-grade materials, including robust steel and corrosion-resistant coatings, to withstand the harshest conditions from saltwater exposure to constant mechanical stress while maintaining reliability over thousands of hours of use. Engineered with a **hydraulic tilt mechanism**, it delivers smooth, effortless adjustments between the full-up and full-down positions, allowing boaters to optimize trim for speed, fuel efficiency, or shallow-water navigation with minimal effort. The unit features a **tight-sealing design** to prevent water ingress, which is critical for maintaining engine performance and longevity, particularly in demanding environments like offshore fishing or recreational cruising. Its **quick-release tilt pin** ensures rapid and secure attachment to the motor, reducing downtime during maintenance or swaps, while the integrated **tilt stop** provides precise control over the motor s angle, preventing accidental over-tilt that could damage the propeller or strain the motor s components. Built to complement Mercury s **Verado, FourStroke, and Sterndrive** outboards, this tilt unit is backward-compatible with select models, offering a cost-effective upgrade or replacement solution for boaters seeking to enhance their vessel s handling without compromising on durability or performance. Whether used on a high-speed performance boat, a versatile fishing vessel, or a family-friendly cruiser, this tilt unit exemplifies Mercury s commitment to innovation and engineering excellence, ensuring that every tilt adjustment is both efficient and dependable.

### **Pros and Cons of buying a Mercury 855998A09 829729T2 Outboard Power Tilt Unit (150 250HP)**

#### **Pros**

1. **Compatibility with High-Performance Outboards**

- Designed specifically for Mercury outboards in the 150 250HP range, ensuring a precise fit and optimized performance. This reduces the risk of compatibility issues that can arise with aftermarket units.

2. **Enhanced Maneuverability**

- A power tilt unit allows for quick and easy adjustments to the outboard s angle, improving handling in tight spaces, docking, and navigating shallow waters. This is particularly useful for fishing boats, cruisers, and performance boats where agility is important.

3. **Reduced Physical Strain**

- Manual tilt units require significant effort to raise or lower the outboard, which can be tiring over time. The power tilt unit automates this process, making it easier to operate, especially for larger or heavier outboards.

4. **Improved Boat Stability**

- Tilt units allow you to lower the outboard when cruising, reducing drag and improving fuel efficiency. This is particularly beneficial for long-distance travel or when operating at higher speeds.

5. **Durability and Reliability**

- Mercury is a well-known brand in the marine industry, and this unit is built to withstand frequent use. High-quality materials and engineering ensure longevity, especially when properly maintained.

6. **Ease of Installation**

- While installation can vary depending on the boat s setup, Mercury s power tilt units are generally designed with user-friendly features, such as clear wiring diagrams and mounting guides. Many dealers offer installation services if needed.

7. **Compatibility with Modern Electronics**

- Many power tilt units can be integrated with boat control systems, allowing for remote operation via switches or even smartphone apps. This adds convenience and enhances the overall boating experience.

8. **Resale Value**

- Boats equipped with factory-installed or high-quality aftermarket tilt units tend to hold their value better, as they are seen as desirable features by potential buyers.

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#### **Cons**

1. **Higher Upfront Cost**

- Power tilt units are more expensive than manual tilt units or no tilt at all. The cost can range from several hundred to over a thousand dollars, depending on the model and installation requirements. This may not be justified for smaller or less frequently used boats.

2. **Potential for Mechanical Issues**

- Like any mechanical component, power tilt units can experience malfunctions such as motor failure, wiring issues, or hydraulic leaks. Regular maintenance is required to prevent these problems, and repairs can be costly if the unit is under warranty or not.

3. **Complexity of Installation**

- While some boats may have pre-drilled holes or mounting points for tilt units, others may require custom modifications. This can add to the installation cost and time, especially if professional help is needed. Improper installation can lead to safety hazards or premature wear.

4. **Power Dependency**

- Power tilt units rely on electricity, which means they won t function if the boat s battery is dead or if there s a wiring issue. This can be inconvenient in emergencies or during maintenance. Some units may include backup power options, but these add to the cost.

5. **Weight Considerations**

- Adding a power tilt unit increases the boat s weight slightly, which may affect its handling, especially in smaller or lighter vessels. This is generally negligible for larger boats but could be a factor for very small or lightweight craft.

6. **Maintenance Requirements**

- Power tilt units require periodic maintenance, such as lubricating moving parts, checking electrical connections, and inspecting hydraulic lines (if applicable). Neglecting maintenance can lead to premature failure or costly repairs.

7. **Potential for Overkill on Some Boats**

- If the boat is rarely used or primarily operated in calm, open waters where tilting isn t frequently needed, the benefits of a power tilt unit may not outweigh the costs. In such cases, a manual tilt or no tilt at all might suffice.

8. **Compatibility with Non-Mercury Outboards**

- While this specific unit is designed for Mercury outboards, using it with a non-Mercury outboard of similar size may not be ideal. The fit, functionality, and warranty could be compromised, voiding any manufacturer guarantees.

---

### **Conclusion**

The Mercury 855998A09 829729T2 power tilt unit is a high-quality, reliable addition for boats in the 150 250HP range, particularly those used for fishing, cruising, or performance driving. Its primary advantages lie in enhanced maneuverability, reduced physical strain, improved fuel efficiency, and compatibility with Mercury s outboards. However, the higher cost, potential mechanical issues, and maintenance requirements must be carefully considered.

For **frequent boaters, anglers, or those who prioritize ease of use and versatility**, the power tilt unit is a worthwhile investment. It will significantly improve the boating experience by making operations smoother and more efficient.

For **occasional boaters, smaller boats, or those on a tight budget**, the added convenience may not justify the expense. In such cases, a manual tilt or no tilt unit could be a more practical choice.

### **Recommendation**

If you own a Mercury outboard in the 150 250HP range and frequently engage in activities that benefit from quick and easy outboard adjustments (e.g., fishing, docking in tight spaces, or cruising in varied conditions), **purchasing this power tilt unit is highly recommended**. Ensure you budget for installation (if not included) and plan for regular maintenance to maximize its lifespan.

If your boating habits are more casual or your boat doesn t require frequent tilting, **weigh the cost against the benefits** and consider alternatives like a manual tilt or aftermarket options that may be more budget-friendly. Always verify compatibility with your specific outboard model and consult a marine professional if unsure.

Details:

Runs up and down perfectly ready to use. Inventory: Turk. Please see pictures below. Paint is in a little rough condition.

Part:Tilt and Trim Assay. Condition: Very good condition. Works perfect. Fits a lot of 135 150 175 200 225 250 300 hp 2 stroke Merck with wires all through the 1990 's-2000s to almost current.

This is a Mercury carburetors, EFI, Optima unit with the bullet connectors. Location:Bollix, Ms.

part #: 855998a09 prices

• $434.95-$870.00

specifications ouboaen:

• for makes: Mercury
• mpn: 855998a09
• part type: Unit
• warranty: 30 Day
• country of origin: United States

seller ouboaen:

• # reviews: 2628
• rating: 100.0%
• city: Biloxi, Mississippi

general ouboaen:

• Boat Parts > Outboard Engines Components > Trim Tilt
• condition: Used

payments ouboaen:

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

returns ouboaen:

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

shipping ouboaen:

• cost: $29.00
• class: Standard
• type: Fixed
• transit: 3-7 Days
• service: Standard

offer ouboaen:

• started: February 2, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• best offers: True

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