SKU: 99134623261

Water Pump Impeller Kit – Fits Yamaha 9.9/13.5/15/20HP 4-Stroke Outboards (Replaces 6AH-W0078-00)

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Description

Water Pump Impeller Kit – Fits Yamaha 9.9/13.5/15/20HP 4-Stroke Outboards (Replaces 6AH-W0078-00)Water Pump Impeller Kit Fits Yamaha 9. 9 13. 5 15 20HP 4 Stroke Outboards This water pump impeller repair kit provides a complete solution for servicing Yamaha 4 stroke outboards, including models F9. 9, F13. 5, F15C, and F20 (9. 9HP, 13. 5HP, 15HP, 20HP) from 2006 to 2023. It is designed to meet or exceed OEM specifications for reliable performance. This kit directly replaces Yamaha OEM part numbers: 6AH W0078 00 00, 6AH W0078 01 00, and 6AH W0078 02

Water Pump Impeller Kit – Fits Yamaha 9.9/13.5/15/20HP 4-Stroke Outboards

This water pump impeller repair kit provides a complete solution for servicing Yamaha 4-stroke outboards, including models F9.9, F13.5, F15C, and F20 (9.9HP, 13.5HP, 15HP, 20HP) from 2006 to 2023. It is designed to meet or exceed OEM specifications for reliable performance.

This kit directly replaces Yamaha OEM part numbers: 6AH-W0078-00-00, 6AH-W0078-01-00, and 6AH-W0078-02-00.

  • Engineered for direct OEM replacement to ensure a precise fit and easy installation.
  • Features a durable cast iron housing for enhanced longevity and corrosion resistance.
  • Includes all necessary components for a comprehensive water pump service, including the impeller, housing, plates, and gaskets.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number Superseded By
Yamaha 6AH-W0078-00-00 6AH-W0078-02-00
Yamaha 6AH-W0078-01-00 6AH-W0078-02-00
Yamaha 6AH-W0078-02-00

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F9.9 9.9 4-Stroke 2009–2016 6AH-W0078-00-00 6CA1-6AC9
Yamaha F13.5 13.5 4-Stroke 2007–2009 6AH-W0078-00-00 6AF1-6AF3
Yamaha F15 15 4-Stroke 2007–2014 6AH-W0078-00-00 6AG1-6AG9
Yamaha F15 15 4-Stroke 2015–2016 6AH-W0078-00-00 6AGA-6AGB
Yamaha F15C 15 4-Stroke 2008–2017 6AH-W0078-00-00 F15CEHL, F15CEHS
Yamaha F15C 15 4-Stroke 2007–2017 6AH-W0078-00-00 F15CMHL, F15CMHS
Yamaha F15L 15 4-Stroke 2007–2022 6AH-W0078-00-00 F15LEHA, F15LMHA
Yamaha F20 20 4-Stroke 2007–2014 6AH-W0078-00-00 6AH1-6AH9
Yamaha F20 20 4-Stroke 2015–2016 6AH-W0078-00-00 6AHA-6AHB
Yamaha F20B 20 4-Stroke 2007–2017 6AH-W0078-00-00 F20BEHPL, F20BEPL, F20BMHL, F20BMHS
Yamaha F20L 20 4-Stroke 2007–2022 6AH-W0078-00-00 F20LMHA, F20LPA, F20LPHA

Technical Specifications

Specification Value
Product Type Water Pump Impeller Repair Kit
Installation Direct OEM replacement
Housing Material Cast Iron

Package Contents

  • 1 x Water Pump Housing (6AH-44311-00-00)
  • 1 x Cartridge Insert (63V-44322-00-00)
  • 1 x Water Seal Damper (6L2-44367-00-00 / 6L2-44367-01-00)
  • 1 x Impeller (63V-44352-01-00)
  • 1 x Woodruff Key (664-44338-00-00)
  • 1 x O-Ring (93210-49046-00)
  • 1 x Cartridge Outer Plate (68T-44323-00-00)
  • 2 x Dowel Pins (93604-10M03-00)
  • 4 x Bolts (97095-08045-00)
  • 2 x Plates (63V-44328-01-00)

Installation Guide

  1. Disconnect Power: Disconnect the battery and spark plug wires for safety.
  2. Access the Lower Unit: Drain the gearcase oil. Remove the bolts securing the lower unit to the engine and carefully lower it.
  3. Remove Old Pump: Unbolt and remove the old water pump housing assembly from the driveshaft.
  4. Clean Surfaces: Thoroughly clean the mounting surfaces, removing any old gasket material or debris.
  5. Install New Components: Slide the new Woodruff key and impeller onto the driveshaft. Install the new plates, o-ring, and cartridge insert into the housing.
  6. Mount New Pump: Place the new housing assembly over the impeller, ensuring the impeller fins are correctly oriented (typically clockwise). Secure it with the new bolts.
  7. Reassemble: Re-install the lower unit, reconnect all linkages, and refill the gearcase with fresh oil.
  8. Test Operation: Reconnect the battery and test the engine using a water source (flushing muffs) to confirm proper water flow from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific engine model?

A: The most reliable method is to check your engine's model and year against the compatibility chart above. We also recommend using the official Yamaha guides linked above to verify your serial number and review parts diagrams to ensure all components match.

Q: What are the common signs of a failing water pump or impeller?

A: Key symptoms include the engine overheating at idle or low speeds, a weak or non-existent water stream from the "tell-tale" indicator, or a brittle or cracked appearance on the old impeller's vanes upon inspection.

Q: How often should I replace my water pump impeller?

A: For preventative maintenance, it is recommended to inspect and/or replace the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can be shorter if you frequently operate in sandy, silty, or saltwater conditions.

Q: What is the difference between this part and an OEM component?

A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?

A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99134623261

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Let me just get this out of the way now the soap itself smells decent, nothing wrong there. I only wish I got another cent. Not that this one smells bad it’s just it wasn’t my cup of tea. I’m mostly disappointed about the size because I’ve been through this before. The soaps themselves are not big enough to fill out the box as you can spot in some of the pictures and video. I honestly feel like the soap size was different in the pictures of the customer reviews that I saw. Each bar may last me a week and a half and that’s with a soap saver. To be honest, the box that it came in would fit two decent size soaps if they filled out the box.
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Reviewed in the United States on November 19, 2025
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Brittany
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★★★★★ 5
As expected
Scent: vanilla orange
Love the scents of this soap. It's gentle on my skin and leaves me clean, fresh and soft.
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Reviewed in the United States on May 28, 2026
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Sea Dog (retired)
Dallas, US
★★★★★ 5
A Comprehensive Balanced History of the Guadalcanal Campaign -- Must Read!
Format: Hardcover
I've read a number of good books on the Guadalcanal campaign, and always thought that "Neptune's Inferno" by Hornfischer was the absolute best. I was wrong. Although Hornfischer does a superb account of the Navy and its travails and triumphs, Inferno doesn't delve deeply into the Marine (and Army) land battles. This book does both. Moreover, it provides a continuous timeline of both, and does so in such a way that the reader better understands both as related actions. For instance, I was never really aware that for the first three and a half months the Americans controlled the seas during daylight, and the Japanese at night (sounds a little like Viet Nam). The November 13 sea battle between Americans and Japanese -- in which US cruisers took on Japanese battleships and two American admirals died -- was in fact a clash of a major last ditch effort by the Japanese to reinforce their troops and destroy Henderson Field, which would have allowed them to control the seas both day and night. By that time there had been multiple bloody battles ashore between the Marines and Japanese, with the balance favoring the Marines, but if the Japanese had wrested control of the airfield and seas that would have been old history. The book includes a good view from the Japanese perspective, and some little known historical tidbets as well, e.g., Guadalcanal received its name from the Spanish home town of a ships officer who accompanied Spanish explorer Don Alvaro Medana, who discovered the island during a 1568 expedition to discover the fabled King Solomon's gold mines. Who knew? :-) Bottom line: I highly recommend this book, both for its balanced coverage of the entire campaign, land and sea, and even more for its integrated narrative -- you know what was taking place (or had taken place) on almost a day-by-day basis, which allows the reader to fully appreciate how actions ashore influenced those at sea, and vice versa. IMO, a must read, even for those who thought (like me) that they knew it all!
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Reviewed in the United States on October 12, 2017
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Jeffrey T. Munson
Carnegie, US
★★★★★ 5
The Island Of Death
Format: Hardcover
On August 7th, 1942, American Marines stormed ashore on Guadalcanal. What lay before them was a six-month odyssey of fighting against the best of what the Japanese had to offer. In this fine book, author Joseph Wheelan describes the battle that turned the tide in the Pacific War. The Japanese had started construction of an airfield on Guadalcanal. If completed, Japanese aircraft would be able to harass American convoys and threaten Australia. The Americans seized the airfield and eventually, planes from the Cactus Air Force began attacking the Japanese. Throughout the book, the reader learns about all phases of the Guadalcanal campaign, including the battles of Alligator Creek and Bloody Ridge. On the sea, the Americans and Japanese slugged it out at Savo Island, as well as the great naval battles of November, 1942. Names such as Chesty Puller, John Baslone, "Archie" Vandegrift, Joe Foss, and "Bull" Halsey became household names in the United States. Each side lost many men, ships, and planes, but the tenacity and, finally, the industrial might and the ability to rapidly replace losses, led the Americans to victory. Never again would the Japanese regain the offensive in the Pacific War. "Midnight in the Pacific" is a very good book, and the author has done a good job of describing all of the main points of the battle. Each chapter is broken down into a single month's worth of action, and the narrative is well-written. Highly recommended.
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Reviewed in the United States on September 25, 2017
L
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Laurence J. Rusiecki
New York, US
★★★★★ 4
Good Narrative History
Format: Hardcover
The account of the Guadalcanal campaign was well-written. It has several good maps but it falls short with the two carrier battles associated with the action. There should have detailed maps for the Battle of the Eastern Solomons and the Battle of the Santa Cruz Islands. Aside from this shortcoming, the book provides an excellent, readable history of a crucial confrontation between the US and Japan.
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Reviewed in the United States on April 7, 2019

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