SKU: 67338298464

Water Pump Repair Kit – Fits Yamaha 25–30 HP Outboard Motors (Replaces 61N-W0078-11-00, 61N-W0078-14-00)

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Description

Water Pump Repair Kit – Fits Yamaha 25–30 HP Outboard Motors (Replaces 61N-W0078-11-00, 61N-W0078-14-00)Water Pump Repair Kit Fits Yamaha 2530 HP Outboard Motors This water pump repair kit is designed for specific Yamaha 2 Stroke 30 HP (19931997) and 4 Stroke 25 HP (19982018) outboard motors. It provides a complete solution for servicing or rebuilding your lower unit's water pump. Note: This kit is not compatible with Yamaha F25C models. It serves as a direct replacement for Yamaha OEM part numbers 61N W0078 10 00, 61N W0078 11 00, and 61N W0078 14 00,

Water Pump Repair Kit – Fits Yamaha 25–30 HP Outboard Motors

This water pump repair kit is designed for specific Yamaha 2-Stroke 30 HP (1993–1997) and 4-Stroke 25 HP (1998–2018) outboard motors. It provides a complete solution for servicing or rebuilding your lower unit's water pump. Note: This kit is not compatible with Yamaha F25C models.

It serves as a direct replacement for Yamaha OEM part numbers 61N-W0078-10-00, 61N-W0078-11-00, and 61N-W0078-14-00, as well as Sierra part 18-3432.

  • Complete Assembly: The kit includes a new impeller, housing cup, wear plate, gaskets, seals, and all necessary hardware for a full replacement.
  • Durable Materials: The pump cup and wear plate are constructed from high-grade Stainless Steel 316 for enhanced corrosion resistance and longevity.
  • Installation Location: Mounts in the lower unit of the outboard motor.

Part Number Cross-Reference

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

Brand Part Number Notes
Yamaha 61N-W0078-14-00 Supersedes 61N-W0078-11-00
Yamaha 61N-W0078-11-00
Yamaha 61N-W0078-10-00
Sierra 18-3432 Aftermarket
YAMABOYA 61N-W0078-11 Aftermarket

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 F25 25 4-Stroke 1998–2005 61N-W0078-11-00
Yamaha F25A 25 4-Stroke 2009–2019 61N-W0078-14-00 Supersedes 61N-W0078-11-00
Yamaha F25B 25 4-Stroke 2012–2018 61N-W0078-14-00 Supersedes 61N-W0078-11-00
Yamaha C30 30 2-Stroke 1993–1997 61N-W0078-11-00

Technical Specifications

Specification Value
Product Type Water Pump Impeller Repair Kit
Installation Lower Unit
Fuel Type Gasoline
Housing Material Stainless Steel 316 (Cup and Wear Plate)
Weight 0.24 kg (0.53 lb)
Warranty 1 Year (Aftermarket)
Other Technical Attributes For replacement/repair of outboard water pump assembly

Package Contents

  • 1 x Insert, Cartridge (63V-44322-00-00)
  • 1 x Impeller (63V-44352-01-00 / 6H4-44352-00-00)
  • 1 x Key, Woodruff (664-44338-00-00)
  • 1 x O-Ring (93210-49046-00)
  • 1 x Outer Plate, Cartridge (68T-44323-00-00)
  • 2 x Pin, Dowel (93604-10M03-00)
  • 4 x Bolt (97095-08045-00)
  • 2 x Plate (63V-44328-01-00)
  • 1 x Water Pump Cup (Stainless Steel 316)
  • 1 x Wear Plate (Stainless Steel 316)
  • 1 x Water Seal (6L2-44367-01-00)

Installation Guide

  1. Shift the outboard into neutral and disconnect the battery.
  2. Remove the bolts securing the lower unit (gearcase) and carefully separate it from the upper housing.
  3. Locate the water pump assembly on the driveshaft and unbolt the housing cover.
  4. Take off the old pump housing, impeller, wear plate, and seals. Pay attention to the original orientation of the impeller vanes.
  5. Thoroughly clean all mating surfaces, ensuring all old gasket material and corrosion are removed.
  6. Install the new woodruff key on the driveshaft and place the new wear plate and gasket.
  7. Slide the new impeller onto the driveshaft. While turning the shaft clockwise, install the new pump cup to correctly orient the impeller vanes.
  8. Install the new water seals and outer plate, and secure the housing with the new bolts, tightening them to the manufacturer's specified torque.
  9. Reinstall the lower unit, making sure the driveshaft, shift shaft, and water tube are properly aligned.
  10. Secure the lower unit mounting bolts and reconnect the battery.
  11. With the engine in water or connected to a flush device, start it and confirm a steady stream of water is flowing from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Yamaha engine?
A: This kit is made for Yamaha 2-Stroke 30 HP (1993–1997) and 4-Stroke 25 HP (1998–2018) models. Please reference the "Compatible Engine Models" table to match your specific model and year. It is not compatible with Yamaha F25C models. You can also cross-reference your existing part number with those in the "Part Number Cross-Reference" table.

Q: What are the signs my water pump is failing?
A: The most common signs are a weak or inconsistent water stream from the engine's tell-tale outlet, engine overheating alarms, or a melted water pump housing. During inspection, a brittle, cracked, or worn-down impeller also indicates a need for replacement.

Q: How often should I replace the water pump impeller?
A: For preventative maintenance, we recommend inspecting the impeller annually and replacing the full kit every 1-2 years or every 100-200 hours of use. This interval may shorten depending on operating conditions (e.g., frequent use in sandy/silty water).

Q: What is the difference between this kit and an OEM one?
A: This is an aftermarket kit engineered to meet or exceed original manufacturer specifications. Critical components like the pump cup and wear plate are made from corrosion-resistant Stainless Steel 316 to ensure longevity. It offers a reliable and cost-effective alternative to OEM parts without sacrificing performance.

Q: OEM vs. Aftermarket?
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: 67338298464

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Kindle Customer Maureen
Lake Worth, US
★★★★★ 4
Slow, sorry but good
Format: Kindle
This was a slow moving book. Lots of character pov chapters, lots of superfluous descriptions and endless courtly appearances stalled this book to start. Once you get into the heart of the story, it takes off. Before you know it the book is done. My favorite character is Reyna. She is so strong. She is true to herself. She gets into a lot of trouble with her headstrong ways but it's entertaining. I have high hopes for Lorcan. He is honorable to a fault. Thane had turned out to be better than I thought but i still don't like him. Eislin is useless. Great plot twists at the end. I'm looking forward too book 2.
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Reviewed in the United States on June 6, 2020
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Faifre6
Draper, US
★★★★★ 5
Very detailed! Beautiful world building! Strong Heroine!
Format: Kindle
Starts off a little slow and confusing with different POV’s, but starts to all come together towards the middle to make an elaborate plot line and makes it all worth it. Beautiful world building and attention to detail as well as great writing. The cliffhanger was gut wrenching! Can’t wait for the next book!
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Reviewed in the United States on March 4, 2020
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Isabelle
Massapequa, US
★★★★★ 4
Interesting
Format: Kindle
This was a very captivating book once you got into it thoroughly. But the third person perspective was a bit hard to get used to. But as you got into it and followed the different characters, it was interesting and filled with intrigue, conflict and forbidden love. I can’t wait to read the next one and to complete the series.
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Reviewed in the United States on November 12, 2022
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Lisa B.
Whiting, US
★★★★★ 5
OUTSTANDING
Format: Kindle
This was very, very good. The world is vast and characters are complex. There is a good plot with a whole lot going on. This is well written. Good twists and turns and some heart breaking moments. You will love these characters, they have heart and loyalty. I am hoping that there will be several more books. We've yet to see anything from the Sea Court but only a mention of them here and there. The Wood Court was given a quick couple of scenes, and only as far as some warriors, we've yet to enter their court and the Shadow Court, I'm not sure if they will be a force for good or bad, but they definitely will play a much bigger role moving forward. This is primarily the Ice and Air Courts. Told in multiple views, which I loved, it gives you a chance to see things from different eyes. There's alot of political maneuvering and deception. I loved it and will pick up the next book as it becomes available. If you like The Fae and the courts, you should love this. I think the author has mucn in store for us.
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Reviewed in the United States on March 8, 2020
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Jessika
Louisville, US
★★★★★ 4
Definitely worth the read!
Format: Kindle
After taking a deep breath and taking in that wicked twist of an ending, I have finally composed myself. My first thought when I started this book was that I love Reyna's character. I was intrigued by her connection with her familiar and the Ruin that is plaguing her land. It came as no surprise that she took her sister's place in an attempt to protect her. When they reach the Air Court everything slows down. This is where it was iffy for me. First of all, I like multiple POV's in books however 7 is a bit much. It starts to interrupt the story line. I felt like I was finally making progress connecting with one character, then it was switched to another person. I felt they all had necessary or pertinent information but not necessarily were they all POV worthy. The only other thing that annoyed me was that Reyna constantly was " trapped." She would rush off without thinking, only to need rescuing. She is brilliant in a fight, but she really doesn't think through anything. Lorcan is amazing. I know he might be on the "bad" list, but his background is so interesting. Eislyn(Reyna's sister) is really so sweet, but calculating. I enjoyed her and Thane's dialogue. The author did an amazing job with the imagery in this book. Everything was so detailed it was easy to fall into the scene. I love unexpected twists and while part of the ending I expected, I wasn't expecting how it took place. All in all, I found it very entertaining and I am very invested in continuing this series. Favorite quotes: "The truth may be twisted but never false." "Who was she if she was not the enemy of the Air Court? What was her purpose of she no longer has that?" "In a war-torn land, love was always a lie."
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Reviewed in the United States on March 4, 2020

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