fits model: Sierra. make: Yamaha.

( Brand: Bfo ), ( Manufacturer Part Number: 49D2SU ), ( Part Type: Pump ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Fitment: For Yamaha Outboard 4 Stroke 150 175 200 225 250 Hp, For Yamaha Outboard 2 Stroke 150 175 200 225 Hp 1997-2015 ), ( Oe/part Number: 61a-w0078-01-00, 61a-w0078-a3-00, 61a-w0078-a2-00, 61a-w0078-a2, 18-3396, 18-3395 ), ( Country Of Origin: China )
The **BFO 49D2SU Water Pump Service Kit** is a meticulously engineered replacement solution designed specifically for Yamaha outboard motors in the 150 250 horsepower range, including the **Sierra 18-3395** and other compatible models within this series. This premium kit is crafted to ensure optimal performance, reliability, and longevity for your engine s cooling system, where the water pump plays a critical role in maintaining proper temperature regulation and preventing overheating. Engineered with high-quality materials, the kit features a **durable impeller** constructed from reinforced plastic, resistant to warping, cracking, or degradation from prolonged exposure to saltwater, freshwater, or harsh marine environments. The **sealed mechanical seal** incorporated into the design minimizes the risk of leaks, reducing maintenance hassles and extending the life of the pump while maintaining efficient water flow. Compatible with Yamaha s **D2SU** water pump mounting configuration, this kit includes all necessary components such as the impeller, gasket, and sometimes a new shaft seal to perform a complete and hassle-free replacement. Whether you re tackling a routine service interval or addressing a failing pump, this kit simplifies the process with precise fitment and straightforward installation, ensuring your Yamaha outboard operates at peak efficiency. Ideal for both professional mechanics and DIY enthusiasts, the **BFO 49D2SU** is a trusted choice for those seeking a dependable, long-lasting solution to keep their high-performance outboard running smoothly.
### **Pros and Cons of buying a BFO 49D2SU Water Pump Service Kit for Yamaha 150-250HP Outboards (Sierra 18-3395)**
#### **Pros:**1. **Direct Fitment** The kit is specifically designed for Yamaha 150-250HP outboards, including the Sierra 18-3395 model, ensuring compatibility without modification.
2. **High-Quality Components** BFO (Boat Fuel Outboards) is a reputable brand known for manufacturing reliable marine parts, including water pumps, seals, and gaskets.
3. **Complete Replacement Kit** The kit typically includes the impeller, shaft seal, bearings, and sometimes a new water pump housing gasket, reducing the need for additional purchases.
4. **Prevents Cooling System Failures** A failing water pump can lead to overheating, engine damage, or complete failure. Replacing it proactively extends the life of the outboard.
5. **Easier Installation** Since it s a service kit, it often comes with clear instructions or is designed for straightforward replacement, reducing installation complexity.
6. **Cost-Effective Alternative** Replacing a water pump with a service kit is usually cheaper than buying a full new water pump assembly, especially if the housing is still intact.
7. **Improved Performance** A new impeller and seal ensure better water flow and prevent leaks, maintaining optimal engine cooling efficiency.
8. **Warranty Coverage** Some BFO kits come with warranties, providing peace of mind against premature failure.
#### **Cons:**1. **Limited Longevity** While high-quality, water pumps are still subject to wear over time, especially in harsh marine environments. The kit may need replacement again after several years.
2. **Installation Skill Required** If the user lacks mechanical experience, improper installation (e.g., misalignment, incorrect torque) could lead to premature failure or damage to the outboard.
3. **Potential for Counterfeit Products** Purchasing from untrusted sellers may result in fake or substandard parts, which could fail quickly or not fit properly.
4. **Additional Tools Needed** Replacing a water pump may require specialized tools (e.g., puller for the shaft, torque wrench), which could add to the overall cost if not already owned.
5. **Time-Consuming Process** The job requires draining the cooling system, removing the lower unit, and carefully reassembling components, which may take several hours.
6. **Risk of Over-Tightening** Improperly tightened seals or bolts can cause leaks or damage to the pump housing or engine mounts.
7. **Environmental Considerations** Old coolant and seals must be disposed of properly, which may require additional effort or cost if not handled correctly.
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### **Conclusion**
The **BFO 49D2SU water pump service kit** is a **strong, cost-effective solution** for maintaining or restoring the cooling system of a Yamaha 150-250HP outboard, particularly the Sierra 18-3395 model. Its **direct fitment, high-quality components, and comprehensive nature** make it a practical choice for both DIY enthusiasts and professionals. However, **proper installation is critical** any mistakes could lead to leaks, reduced performance, or even engine damage. If the user lacks confidence in mechanical work, consulting a marine mechanic may be advisable.
For most **reliable, mid-range outboards**, this kit is **highly recommended** as a **preventative maintenance measure** or when symptoms of a failing water pump (e.g., overheating, reduced power, leaks) are observed. Purchasing from an **authorized dealer or trusted online retailer** ensures authenticity and quality.
**Final Recommendation:**If the outboard shows signs of water pump wear or you re performing routine maintenance, **buy the BFO 49D2SU kit** from a reputable source and follow installation guidelines carefully. If unsure about the process, seek professional help to avoid costly mistakes. Regularly inspecting and servicing the water pump will **extend the life of your Yamaha outboard** and prevent costly repairs down the line.
For shipping damage case. For the Following Yamaha 2 Stroke Outboards:150HP-150A '98-'2013, 150F '97-'13, 150J '01-'05. For Yamaha outboard 4 Stroke 150 175 200 225 250 hp and Item Quality problem.
Material Rubber Stainless Steel Plastic. It same to the picture shown. Return item must be in brand new and unused condition with original tags packaging. Type:Outboard water pump impeller service Kit.
For the Following Yamaha 2 Stroke Outboards:175HP-175D '97-'05. Our mechanic will inspect every return item. OE/Part number. Package included.
The reason for return. Water Pump Service Kit for Yamaha 150-250HP Outboard Replaces Sierra 18-3395. Return items must be in original condition.