Your Professional Yamaha Water Pump Repair Kits Supplier
Hangzhou Starwave Technology Co., Ltd. is a professional enterprise focusing on the full-range supply of outboard motor parts. Its core competitiveness comes from our own physical factory-a precision manufacturing base with decades of experience in manufacturing core components of internal combustion engines.We are highly compatible with nearly 100 models of global mainstream outboard motor brands such as Mercury, Yamaha, Suzuki and Honda, and our services cover diverse customer groups including professional repair shops, equipment distributors and overseas traders.
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63D-W0078-00 Water Pump Impeller Repair Kit For Yamaha Ou...
Horsepower: 40HP 50HP 60HP
We offer high-quality 63D-W0078-00 outboard water pump impeller repair kit, which is perfectly compatible with Yamaha 40HP 50HP 60HP outboard engine, but at a... -
6H3-W0078-02 Water Pump Impeller Repair Kit With Housing ...
Horsepower: 50HP 60HP 70HP
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6H3-W0078-02 Water Pump Impeller Repair Kit For Yamaha Ou...
Horsepower: 50HP 60HP 70HP
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6BG-W0078-00 Water Pump Impeller Repair Kit for Yamaha Ou...
Horsepower: 30HP 40HP
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63D-W0078-00 Water Pump Impeller Repair Kit with Housing ...
Horsepower: 40HP 50HP 60HP
Why Choose Us
R&D Team
The R&D center of Hangzhou Starwave Technology Co., Ltd. is built around a highly skilled technical team, featuring a structure characterized by senior leadership combined with deep professional specialization, ensuring strong technical expertise, efficient innovation, and the ability to develop high-quality products that meet international market standards.
Our Service
We provide dedicated one-on-one technical support, with our professional technical team available 24/7 and a guaranteed response time of within 2 hours, ensuring efficient communication, rapid problem resolution, and reliable support throughout the entire cooperation process.
Our Certificate
As a national high-tech enterprise, we hold IATF 16949 and ISO 9001 system certifications, along with multiple patents, demonstrating our strong commitment to quality management, technological innovation, and industry-leading standards.
Production Market
Our products are exported to a wide range of international markets, including South American countries such as Brazil and Argentina, Southeast Asian countries, African nations, Europe, and the United States, reflecting our strong global reach and the trust of customers worldwide.

Cost-Effective Solution: One of the primary benefits of using a pump repair kit is the cost savings. Replacing individual parts is significantly cheaper than purchasing a new pump, making repair kits an economical option for maintaining pump systems.
Extended Lifespan: Regular maintenance using repair kits can extend the pump’s lifespan. By replacing worn components, you can prevent further damage and ensure the pump operates efficiently for a more extended period.
Minimised Downtime: When a pump fails, it can disrupt operations, whether in a residential, commercial, or industrial setting. Repair kits allow quick and effective repairs, minimising downtime and ensuring operations continue smoothly.
Improved Efficiency: A well-maintained pump operates more efficiently, reducing energy consumption and operational costs. Replacing worn-out parts restores the pump’s original performance, leading to better fluid management and lower utility bills.
Product Paramenters
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Technical Data for 6BG-W0078-00 outboard water pump impeller repair kit |
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OEM |
6BG-W0078-00 |
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PACKAGE INCLUDED: |
1 X Gasket, Water Pump-----------63D-44316-00-00(18-0483) |
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1 X Cup, Insert----------------------63D-44322-00-00(18-3449) |
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1 X Plate, Wear---------------------63D-44323-00-00(18-3186) |
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1 X Seal, Water Damper-----------663-44366-00-00(18-1828) |
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1 X Impeller-------------------------6H4-44352-02-00(18-3068) |
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4 X Bolt, With Washer-------------90119-08M15-00(18-8400-9) |
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1 X Key, Woodruff------------------90280-03M03-00(18-3297) |
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1 X O-Ring---------------------------93210-59MG7-00(18-71334) |
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Features: |
[Quality] : Original level of quality and durability, the impellers are manufactured from high quality rubber and will not be damaged even after long periods of immersion in salt water |
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Replaces: |
Product Type: Ignition Key Switch / Specifications: / Replaces: / Oem Interchange Part Number : |
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Replace for Yamaha 6BG-W0078-00 |
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Sierra 18-3490 |
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Applications: |
This Item Fits Various Applications By Part Number. Please Check Your Part Number To Ensure Fitment. / Make & Model(S): |
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For Yamaha 4-Stroke: |
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2013-2017 - For Yamaha F30 Outboards |
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2008-2017 -For Yamaha F40A Outboards |
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Source: |
Aftermarket |
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Original: |
Lishui, China |
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Payment term: |
TT, LC |
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Delivery date: |
Negotiable |
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Packing: |
Export standard |
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Market: |
Asia/South America/Europe |
Key Components of Yamaha Water Pump Repair Kits
Seals: Mechanical seals prevent fluid from leaking from the pump casing. These seals can wear over time due to friction, leading to leaks and reduced efficiency. Rebuild kits typically include replacement seals to restore the pump's sealing capability.
Gaskets: Gaskets provide a tight seal between the pump's various sections, such as between the casing and the cover. They prevent leaks and ensure that the pump operates under optimal pressure conditions. Over time, gaskets can deteriorate or become compressed, necessitating their replacement.
O-Rings: O-Rings are used in various locations throughout a pump to seal interfaces and prevent leaks. They can be found in the seal housing, shafts, and connections between pump components. O-rings are made from elastomeric materials that can degrade, making replacements a standard part of pump rebuilds.
Bearings: Bearings support the rotating shaft of the pump, allowing it to spin smoothly and with minimal friction. Worn bearings can lead to shaft misalignment, increased conflict, and even pump failure. Rebuild kits often include new bearings to ensure the pump shaft operates smoothly.
Impellers: Some pump rebuild kits include replacement impellers, since wear or damage to the impeller can affect the pump's performance. The impeller is a critical component that moves fluid through the pump, and its efficiency can significantly impact overall pump efficiency.
Wear Plates: Wear plates or wear rings are included in some kits to restore the internal clearances within the pump. These components help maintain the pump's efficiency by reducing leaks back to the suction side of the pump.
Shaft Sleeves: Shaft sleeves protect the pump shaft from wear and corrosion, mainly where it passes through the seals. Replacing worn shaft sleeves can help extend the life of the pump shaft and seals.
Bushings and Spacers: These help maintain pump components' correct alignment and spacing, ensuring they operate smoothly and efficiently.
Importance of Regular Maintenance of Yamaha Water Pump Repair Kits
Prevents Breakdowns: Regular maintenance helps identify and rectify minor issues before they escalate into major problems that can cause unexpected pump failures. Preventive checks and replacements of worn components can significantly reduce the likelihood of operational disruptions.
Enhances Efficiency: Over time, wear and tear on pump components like bearings, seals, and impellers can decrease efficiency. Regular maintenance ensures these parts are kept in optimal condition, which can improve the pump's performance and decrease energy consumption, leading to cost savings.
Extends Pump Lifespan: Regular maintenance can significantly extend the pump's lifespan by routinely replacing worn components and ensuring the pump operates within its design parameters.
Ensures Reliability: Pumps play a crucial role in maintaining operational continuity in many industries. Regular maintenance ensures that pumps remain functional, minimizing downtime and ensuring consistent production or service delivery.
Protects against Corrosion and Wear: Pumps are often exposed to harsh conditions, including corrosive fluids, hot environments, and more. Maintenance routines include inspections and treatments that protect against corrosion and wear, preserving pump integrity.
Safeguards Against Environmental and Safety Hazards: Leaks or pump failures can pose significant environmental and safety risks, especially when handling hazardous or hot fluids. Maintenance helps ensure that seals and gaskets are intact, preventing leaks and reducing the risk of accidents.
Optimizes Operational Costs: While regular maintenance involves some investment, the cost is often lower than the expenses associated with emergency repairs, energy inefficiency, and the total cost of premature pump replacement.
Turn off the engine and disconnect any electrical connections.
Remove the lower unit cover to access the water pump assembly.
Carefully remove the old impeller, spacer, and outer plate.
Install the new impeller, spacer, and outer plate included in the repair kit,
ensuring they are properly seated according to the specified dimensions.
Use the provided accessories to complete the installation.
Reassemble the water pump and lower unit cover.
Test the engine to confirm proper operation of the new impeller and components.

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water pump repair kits, 6BG W0078 00 Water Pump Impeller Repair Kit for Yamaha Outboard 30 40 HP 4 Stroke, 40 hp water pump kit