fits model: 200, 250. make: Mercury. year: 2004.

( Manufacturer Part Number: 813769 ), ( Part Type: Hp Motor Mount Clamp ), ( Country Of Origin: United States )
The **Mercury 813769-04 Outboard Optimax V6 DF2 (200/225/250 HP) Upper Motor Mounts Clamp** is a precision-engineered, high-performance component designed to ensure optimal functionality, reliability, and longevity for Mercury s advanced Outboard Optimax V6 DF2 engines across the 200, 225, and 250 horsepower range. Crafted from durable, corrosion-resistant materials, this clamp serves as a critical link between the engine s upper motor mount assembly and the transom, providing a secure, vibration-dampening connection that minimizes stress on both the engine and the vessel s structure. Engineered with meticulous attention to detail, the clamp features a robust, heavy-duty construction that withstands the demanding forces of high-speed operation, rough water conditions, and prolonged use, ensuring consistent performance even in the most challenging marine environments. Its design incorporates a tight, interference-fit mechanism that prevents lateral movement, reducing wear on the mount and transom while maintaining alignment for smooth, efficient power delivery. Whether installed on a performance cruiser, a high-speed fishing vessel, or a versatile recreational boat, this clamp plays a pivotal role in maintaining the integrity of the engine s mounting system, contributing to enhanced stability, reduced fatigue, and extended service life. Built to meet Mercury s stringent quality standards, this part is a testament to the brand s commitment to innovation and durability, offering boat owners and mechanics a dependable solution for maintaining peak operational efficiency in their Optimax V6 DF2 outboards.
### **Pros and Cons of buying a Mercury 813769-04 Outboard (Optimax V6 DF2, 200/225/250 HP, Upper Motor Mounts & Clamp)**
#### **Pros:**1. **Compatibility with Mercury s Optimax V6 Series** This part is designed specifically for the **Mercury Optimax V6 DF2** outboards (200, 225, and 250 HP models), ensuring a proper fit and reliable performance. The upper motor mounts and clamp are critical for securing the engine to the transom, reducing vibration and improving handling.
2. **Durability and Quality Construction** Mercury is a well-known brand in the marine industry, and their replacement parts are generally built to withstand harsh marine conditions. The upper mounts and clamp are likely made from **marine-grade materials**, such as reinforced plastics or aluminum, which resist corrosion and wear over time.
3. **Easy Installation** Since this is an **OEM (Original Equipment Manufacturer) part**, it should fit seamlessly with minimal modifications required. Mercury provides detailed installation instructions, and many boat owners report that these mounts can be installed with basic tools (wrench, socket set, and possibly a torque wrench for proper tightening).
4. **Improved Performance and Safety** Worn or damaged upper motor mounts can lead to **excessive vibration, poor steering response, and even engine damage** over time. Replacing them ensures a **stable engine mount**, reducing fatigue on the engine and transmission while enhancing overall boat handling.
5. **Prevents Long-Term Damage** Ignoring failing mounts can lead to **severe engine misalignment, fuel line or wiring damage, or even engine detachment** in rough conditions. Replacing them proactively is a **cost-effective preventive measure** compared to potential major repairs.
6. **Warranty Coverage (If Purchased New)** If buying directly from Mercury or an authorized dealer, the part may come with a **limited warranty**, providing peace of mind against defects.
7. **Standardized Fit** Since this part is designed for multiple HP variants (200/225/250), it offers **versatility** for owners who may upgrade or downgrade their engine in the future.
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#### **Cons:**1. **Cost** Replacement upper motor mounts and clamps are **not cheap**, typically ranging between **$100 $300** depending on whether you buy new or used. This can be a significant expense for boat owners on a tight budget, especially if multiple mounts need replacement.
2. **Labor Time (If DIY Installation is Challenging)** While the installation is generally straightforward, some boat owners may find it **difficult to remove the old mounts** if they are corroded or seized. In such cases, professional installation may be necessary, adding to the cost.
3. **Potential for Counterfeit or Low-Quality Parts** If purchasing from a third-party seller (e.g., eBay, Facebook Marketplace, or unverified online stores), there is a risk of receiving **fake or substandard parts**. Always verify the seller s reputation and check for **authentic Mercury part numbers**.
4. **Limited Lifespan** Even high-quality mounts will eventually wear out, especially in **rough conditions, saltwater exposure, or frequent high-speed use**. Replacement may be needed again in **5 10 years**, depending on usage.
5. **Requires Basic Mechanical Knowledge** While not extremely complex, removing and installing upper mounts may require **some familiarity with boat mechanics**, such as understanding torque specifications and ensuring proper alignment.
6. **Compatibility Issues with Modified Boats** If the boat has been **customized with aftermarket transoms, brackets, or engine supports**, the standard Mercury mounts may not fit perfectly. Custom fabrication may be needed in such cases.
7. **Environmental Factors** Saltwater corrosion can **accelerate wear** on plastic or metal components, even on high-quality parts. Owners in **saltwater environments** may need to **inspect and replace mounts more frequently**.
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### **Conclusion:**The **Mercury 813769-04 upper motor mounts and clamp** is a **reliable, high-quality replacement part** essential for maintaining the performance and safety of the **Optimax V6 DF2 (200/225/250 HP) outboard**. The benefits **improved stability, reduced vibration, and prevention of long-term engine damage** far outweigh the drawbacks, which are mostly **cost-related and logistical**.
This part is **worth the investment** for any boat owner experiencing **excessive engine movement, steering issues, or worn mounts**. However, buyers should **purchase from authorized dealers** to avoid counterfeit parts and **follow installation guidelines carefully** to ensure proper function.
### **Recommendation:**- **Buy from an authorized Mercury dealer or official distributor** to guarantee authenticity and warranty coverage.
- **Inspect the old mounts before purchasing** if they are severely corroded or damaged, consider replacing them immediately to avoid further engine strain.
- **Consider professional installation** if you lack confidence in DIY mechanics, especially if the mounts are difficult to remove.
- **Store spare mounts** if you frequently operate in rough conditions, as they can wear out faster.
- **Check for aftermarket alternatives** (e.g., **Sea Fox, Torq-It, or other marine-grade mount systems**) if you prefer **longer-lasting or more flexible solutions**, though these may not be OEM-compatible.
**Final Verdict:** **Highly recommended for reliability and performance**, but weigh the cost against your budget and maintenance priorities.
Mercury 200hp dfi 0g960500 thru 0t178499. Mercury 250hp dfi XS 0t651945 thru 0t818042. This guide is to be used as a reference only. DRIVE SHAFT HOUSING AND EXHAUST Tubes N 0G509799 BELOW.
Mercury 225hp dfi 0g960500 thru 0t178499.