SLSRPMT 6P2-W0078-00-00 Impeller Kit 225-300HP 18-3515

( Brand: Slsrpmt ), ( Manufacturer Part Number: 6P2-W0078-00-00 ), ( Part Type: Impeller ), ( Color: Black )

Review SLSRPMT Yamaha 225-300hp Impeller Kit 6p2-w0078-00 fits SIERRA

The **Yamaha 225 300 HP Impeller Kit (SLSRPMT 6P2-W0078-00-00)** is a precision-engineered replacement component designed exclusively for Yamaha outboard motors in the **Sierra 18-3515 series**, specifically tailored to models equipped with the **6P2-W0078-00 impeller assembly**. This high-performance impeller kit is crafted to restore optimal water flow and propulsion efficiency, ensuring reliable operation and extended engine longevity. The kit includes a **durable, corrosion-resistant impeller** constructed from high-grade materials, engineered to withstand the demanding conditions of marine environments, including saltwater corrosion, abrasive debris, and high-speed operation. The impeller s aerodynamic design features **optimized blade curvature and spacing**, which enhances thrust output while minimizing cavitation and vibration critical factors for maintaining smooth, quiet performance in both recreational and professional applications. Whether installed in a fishing vessel, a leisure boat, or a workboat, this impeller kit delivers superior power transfer, reducing strain on the engine s internal components and improving fuel economy. Compatible with Yamaha s **6-cylinder, 225 300 horsepower outboard motors**, this kit is a direct-fit replacement for the original equipment, ensuring seamless integration with the existing propulsion system. Built to Yamaha s stringent quality standards, the impeller kit is backed by the brand s reputation for durability and performance, making it an essential upgrade for boat owners seeking to maintain peak engine efficiency and reliability. Proper installation and regular maintenance will further extend the life of this component, ensuring consistent high-performance operation across a wide range of operating conditions.

### **Pros and Cons of buying a Yamaha 225-300HP Impeller Kit (6P2-W0078-00-00 / Sierra 18-3515)**

1. **Compatibility with Yamaha Outboards** This impeller kit is specifically designed for Yamaha 225-300HP outboards, ensuring proper fitment and performance. The part number (6P2-W0078-00-00) confirms it is an OEM or high-quality aftermarket replacement, reducing the risk of incompatibility issues.

2. **Enhanced Performance** A well-maintained impeller improves fuel efficiency, cooling efficiency, and overall engine performance. A worn or damaged impeller can restrict water flow, leading to overheating and reduced power. This kit ensures optimal water circulation, which is critical for high-HP engines.

3. **Durability and Quality** Yamaha and Sierra (a trusted marine parts manufacturer) are known for producing durable components. The impeller is likely made from high-grade materials (such as stainless steel or reinforced plastic) to withstand the demands of marine use, reducing the likelihood of premature failure.

4. **Ease of Installation** Since this is a direct replacement part, installation should be straightforward for someone with basic mechanical skills. The kit typically includes all necessary components (impeller, seals, gaskets, and sometimes a new shaft sleeve), simplifying the process.

5. **Cost-Effective Maintenance** Replacing an impeller is far cheaper than dealing with engine damage caused by poor cooling. A failing impeller can lead to overheating, which may result in costly repairs or even engine failure. Proactively replacing it prevents such issues.

6. **Extended Engine Lifespan** Proper water flow through the impeller keeps the engine cool, reducing wear on internal components like the water pump, seals, and cooling passages. This contributes to longer engine life and better reliability.

7. **Warranty Coverage** If purchased from an authorized dealer or Yamaha-approved supplier, this part may come with a warranty, providing peace of mind against defects or premature failure.

8. **Improved Fuel Economy** A properly functioning impeller ensures efficient water flow, which can slightly improve fuel efficiency by reducing the engine s workload.

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1. **Cost** While replacing an impeller is cheaper than major engine repairs, the part itself may still be relatively expensive, especially if purchased from an official dealer. Prices can vary depending on whether it s a new OEM part or an aftermarket alternative.

2. **Labor Time** If the boat owner lacks mechanical experience, hiring a marine mechanic to install the impeller will add to the cost. Installation requires removing the lower unit, which can be time-consuming and may require specialized tools.

3. **Potential for Counterfeit Parts** If buying from an untrusted seller (e.g., third-party online marketplaces without verification), there is a risk of receiving a counterfeit or low-quality impeller. This could lead to premature failure and void any warranty.

4. **Additional Maintenance Required** While replacing the impeller is a good preventive measure, it s part of a broader maintenance routine. Owners should also check the water pump, seals, and cooling system regularly to ensure long-term reliability.

5. **Limited Lifespan** Even high-quality impellers will eventually wear out, especially in boats used frequently or in harsh conditions (e.g., saltwater exposure, debris ingestion). Owners should monitor performance and replace it as needed.

6. **Compatibility with Modified Engines** If the Yamaha outboard has been modified (e.g., with aftermarket exhausts, intake systems, or performance upgrades), the stock impeller may not be optimal. In such cases, a performance-tuned impeller might be necessary, which could require additional research or consultation with a marine specialist.

7. **Environmental and Operational Factors** Boats operating in dirty water (e.g., lakes with debris, rivers with sediment) may experience faster impeller wear. Regular flushing of the cooling system can help mitigate this but adds to maintenance efforts.

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### **Conclusion**

The Yamaha 225-300HP Impeller Kit (6P2-W0078-00-00 / Sierra 18-3515) is a **highly recommended preventive maintenance component** for owners of these outboards. The benefits such as improved cooling, fuel efficiency, and engine longevity far outweigh the drawbacks, which are mostly related to cost, installation complexity, and the need for periodic replacement. For most boat owners, the peace of mind and performance gains justify the investment.

If purchasing, **buy from an authorized Yamaha dealer or a reputable marine parts supplier** to ensure authenticity and quality. If installation is beyond your comfort level, consult a marine mechanic. Regularly inspecting the impeller and cooling system will help extend its lifespan and prevent costly engine issues.

**Buy the kit and replace the impeller as part of routine maintenance.** This is a **proactive step** that will save money in the long run by preventing overheating and engine damage. Prioritize purchasing from a trusted source to avoid counterfeit parts, and consider professional installation if unsure about the process. For boats used heavily or in harsh conditions, pair this replacement with other cooling system checks (e.g., water pump, seals, and strainer).

Details:

Water pump maintenance is vital for any outboard. The kit replaces worn parts to prevent overheating and maintain top engine performance. Engine cooling must be reliable, especially on the water. This kit fits Yamaha 225 HP, 250 and 300 HP motors, including model's like F225, F250, FL250, Z3 LZ300 with 3.3L engines.

Buyers trust SLSRPMT kits for quality and value. Keywords: water, pump, impeller, repair. Ensure the impeller blades point right way and each part seals tightly. With genuine quality, this kit delivers everything needed for a thorough water pump overhaul.

Maintenance is less costly than a damaged engine. They match or exceed Yamaha original parts for quality and fit, so you can be confident of a long-lasting fix. Using a full water pump repair kit provides many benefits. Yamaha outboard water pump kits are a key part of marine maintenance.

Looking for more marine solutions. Hot running engines, reduced water flow, or old parts are all reasons for immediate replacement. Condition: Open Box All parts included. It works as a direct replacement for Yamaha 6P2-W0078-00-00 and Sierra 18-3515 parts.

These parts work together for a full repair. Answer: Yamaha suggests a full water pump inspection each year. Each piece is crafted to meet strict OEM standards for a lasting repair. For Yamaha outboard enthusiasts, this kit is a must-have.

Smooth, consistent water flow ensures your outboard is always ready for next adventure. Question: What parts are included in the SLSRPMT Water Pump Impeller Repair Kit. Using this kit ensures your motor is ready for every trip. Proper installation is important for smooth water flow and long-term reliability.

The SLSRPMT Water Pump Impeller Repair Kit 6P2-W0078-00-00 keeps your Yamaha Outboard V6 running cool and efficiently. Replacing several parts at once means you won't need to revisit repairs soon. Compatibility depends on the year and exact engine version. If you are unsure, seek help from a marine mechanic.

With the included hardware and correct fit, most users find kit straightforward to install. You reduce engine overheating risks and improve cooling. This kit restores cooling for Yamaha Outboard V6 engines. Answer: Each kit contains a tough impeller, strong wear plate, insert cup, gasket for water tightness, all bolts needed, plus key, O-ring, and pin.

With this kit, you can venture out knowing your engine is protected. Use the included hardware and replace all old components. The repair kit matches the design of factory Yamaha water pumps. This can boost horsepower and extend engine life.

Beginners should consult a Yamaha service manual or trusted technician for step-by-step help. This gives peace of mind for boat owners. Answer: Follow your Yamaha service manual for accurate steps. Installation is simple.

This SLSRPMT kit includes a high-quality impeller, durable wear plate, precision insert cup, reliable gasket, installation bolts, key, O-ring, and pin. Always keep a kit onboard for emergency repairs far from shore. The impeller moves water through the engine, keeping it at a safe temperature. Every kit is quality checked and meets or surpasses OEM requirements.

No signs of use or damage. If the impeller or gaskets become damaged, overheating can happen fast. For official details on Yamaha outboard technology, visit the Outboard Wikipedia page. Timely maintenance avoids expensive engine repairs and keeps your trips safe fun.

Question: When should I replace the impeller or repair water pump on my Yamaha Outboard. Proper install is vital for dependable engine cooling.

part #: 6p2w00780000 price

• $84.85

specifications ouboaen:

• for models: Sierra
• for makes: Yamaha
• brand: Slsrpmt
• mpn: 6p2-w0078-00-00
• part type: Impeller
• color: Black

payments ouboaen:

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

shipping ouboaen:

• cost: $0.00
• carrier: UPS, USPS
• class: Economy, Standard
• type: Calculated
• service: UPS Ground Saver, USPS Ground Advantage
• transit: 6-14 Days

general ouboaen:

• Boat Parts > Outboard Engines Components > Cooling Systems
• condition: New other see details

seller ouboaen:

• # reviews: 475
• city: Sutton, Massachusetts
• rating: 98.6%

returns ouboaen:

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

offer ouboaen:

• best offers: True
• started: February 4, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1

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