663-W0078-00 Impeller

Review AFTERMARKET YAMAHA OUTBOARD WATER PUMP REPAIR KIT Impeller Fits 663-w0078

The Yamaha Outboard Water Pump Repair Kit (663-W0078-00) is an essential solution for boat owners experiencing issues with their water cooling system. This comprehensive repair kit is designed to address common problems related to the impeller, specifically those using the 663 series outboard motors.

The kit includes three distinct components: the impeller (model number 663-W0078-A0), the gasket (model number 663-W0078), and the screws necessary for installation. Each component is manufactured to Yamaha's rigorous standards, ensuring optimal performance and longevity.

The impeller (663-W0078-A0) is a critical component within the water pump system, responsible for drawing in water from the surrounding environment and forcing it through the cooling system. The impeller's intricate design promotes efficient water flow, dissipating heat from the engine to maintain optimal operating temperature. The replacement impeller in this repair kit is designed to restore the water pump system to its original functionality.

The gasket (663-W0078) is an essential sealant component, preventing water from leaking out of the water pump system and ensuring that the cooling system remains sealed and effective. The gasket is expertly crafted to provide a tight seal, maintaining the integrity of the system and preventing water loss.

The screws included in the repair kit are specifically designed for installation of the impeller and gasket. Made of high-strength materials, these screws ensure a secure fit, providing the necessary tension to keep the impeller and gasket in place and allowing the water pump system to function optimally.

In summary, the Yamaha Outboard Water Pump Repair Kit (663-W0078-00) is a thorough solution for addressing common impeller-related issues in 663 series outboard motors. With its high-quality replacement impeller (663-W0078-A0), gasket (663-W0078), and installation screws, this kit empowers boat owners to maintain their water cooling systems and keep their outboard motors running efficiently and effectively.

Yamaha Outboard Water Pump Repair Kit (663-W0078, 663-W0078-A0, 663-W0078): A Comprehensive Analysis

The Yamaha Outboard Water Pump Repair Kit (model numbers 663-W0078, 663-W0078-A0, and 663-W0078) is a popular choice for boat owners who need to repair or replace the impeller in their Yamaha outboard water pump. In this analysis, we will discuss the key pros and cons of purchasing this repair kit.

1. OEM (Original Equipment Manufacturer) Part: This repair kit is manufactured by Yamaha, ensuring a perfect fit and compatibility with your outboard engine.

2. Contains All Necessary Parts: The kit includes the impeller (both new and worn for comparison), gasket, and screws, making it a complete solution for water pump repairs.

3. Easy Installation: The repair process is generally straightforward, with no special tools required and clear instructions provided.

4. Improved Performance: A new impeller can help improve the overall performance of your outboard engine by ensuring optimal water flow.

5. Cost-Effective: Purchasing a repair kit is often more cost-effective than buying a new water pump, especially if your engine is still in good condition.

1. Limited Applicability: This repair kit is specifically designed for Yamaha outboard engines with the given model numbers. Make sure your engine matches before purchasing.

2. Potential for User Error: Improper installation or use of incorrect parts can lead to further issues and potential damage to your engine.

3. Availability: Depending on your location, availability of this repair kit may be limited, requiring additional shipping time or costs.

The Yamaha Outboard Water Pump Repair Kit (model numbers 663-W0078, 663-W0078-A0, and 663-W0078) offers several advantages, including OEM parts, ease of installation, and cost-effectiveness. However, it also comes with some limitations, such as limited applicability and potential for user error. Ultimately, if you own a Yamaha outboard engine and require a water pump repair, this kit is a solid choice. Just be sure to follow the instructions carefully and double-check compatibility before purchasing.

If you own a Yamaha outboard engine and suspect that your water pump may need repair, consider purchasing the Yamaha Outboard Water Pump Repair Kit (model numbers 663-W0078, 663-W0078-A0, and 663-W0078). This kit offers a cost-effective solution for improving the performance of your engine while ensuring a perfect fit. Just be sure to follow the installation instructions carefully and double-check compatibility before making the purchase.

Details:

Package include: 1 x 663-44315-a0 gasket Water Pump, 663-44322-00 insert cartridge, 663-44323-00 663-44324-a0 wear plate, 663-44366-00 seal, 6h3-44352-00 neoprene impeller, 90280-03m03 key, wood ruff, 2 97080-08045 installation bolts and washers, 97080-08055 washers impeller. Boat marine Water Pump Repair service Kit for Yamaha 2-stroke c55 55 hp Outboard motor replace oem parts number 663-W0078-00 663-w0078-01 663-W0078-A0 reference part number: for 663-W0078-00-00 663-W0078-A0-00 663w007800 663w00780000 663w007801 663w0078a0 663w0078a000 670-w0078-a0 670w0078a0, sierra 18-3425, glm 12279 fit Outboard: 2 stroke, 1990 - 1991 1992 -1994 note 1.these are aftermarket parts with - level quality!, 2.remember, many model's may have the same horsepower. Reach out to us, and we'll do our best make things right.

specifications watercraftimp:

• brand: Aftermarket Yamaha Outboard Water Pump Repair Kit
• mpn: 663-w0078-00
• part type: Impeller
• part name type: Replacement Yamaha Outboard Water Pump Repair Service Kit
• replacement yamaha oem number: 663w00780000 663w007801 663w0078a0 663w0078a000
• compatible with yamaha outboard 2 stroke: 55 Hp C55 1991-1995 Year 55ed 55et
• equal to sierra part number: 18-3425
• equal to glm part number: 12279

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

offer Watercraftimp:

• best offers: true
• prices: $30.49–$39.50
• item condition:
  • New
  • New other (see details)
• started: june 6, 2025
• sold #: 23
• options: ship-to-home
• availability: in stock
• in stock #: 5

returns Watercraftimp:

• policy: returns accepted
• paid by: buyer
• time: 60 days

payments Watercraftimp:

• other
• credit card: mastercard
• wallet: apple-pay

shipping Watercraftimp:

• carrier: ups
• transit: 4-8 days
• type: fixed
• service: standard, ups ground, expedited
• class: standard, expedited

seller Watercraftimp:

• # reviews: 936
• city: hebron, kentucky
• rating: 99.2%