SKU: 50855472780

Water Pump Repair Kit – Fits Yamaha 4.2L V6 225–300HP Outboards (Replaces 6CE-W0078-01-00, 6CE-W0078-02-00)

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Description

Water Pump Repair Kit – Fits Yamaha 4.2L V6 225–300HP Outboards (Replaces 6CE-W0078-01-00, 6CE-W0078-02-00)Water Pump Repair Kit Fits Yamaha 4. 2L V6 225300HP Outboards This water pump repair kit is designed for Yamaha 4 Stroke 225 HP to 300 HP F225, F250, F300, and VF250 4. 2L V6 outboard engines from 2007 to 2015. It provides all necessary components for a complete service of the lower unit's water pump assembly. This kit is a direct replacement for Yamaha part numbers 6CE W0078 00 00, 6CE W0078 01 00, 6CE W0078 02 00, and Sierra 18 3470 18 3471.

Water Pump Repair Kit – Fits Yamaha 4.2L V6 225–300HP Outboards

This water pump repair kit is designed for Yamaha 4-Stroke 225 HP to 300 HP F225, F250, F300, and VF250 4.2L V6 outboard engines from 2007 to 2015. It provides all necessary components for a complete service of the lower unit's water pump assembly.

This kit is a direct replacement for Yamaha part numbers 6CE-W0078-00-00, 6CE-W0078-01-00, 6CE-W0078-02-00, and Sierra 18-3470 / 18-3471.

  • Includes all required components for a complete water pump rebuild.
  • Engineered for Yamaha 4.2L V6 four-stroke models.
  • Installs in the lower unit.

Part Number Cross-Reference

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

Brand Part Number
Yamaha 6CE-W0078-00-00
Yamaha 6CE-W0078-01-00
Yamaha 6CE-W0078-02-00
Sierra 18-3470
Sierra 18-3471

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 F225 225 4-Stroke 2010-2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha F250 250 4-Stroke 2010-2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha FL250 250 4-Stroke 2010 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha LF225 225 4-Stroke 2010-2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha LF250 250 4-Stroke 2010-2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha VF250 250 4-Stroke 2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha F300 300 4-Stroke 2007-2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha FL300 300 4-Stroke 2010 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha LF300 300 4-Stroke 2007-2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha F350 350 4-Stroke 2007-2015 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha FL350 350 4-Stroke 2010 6CE-W0078-01-00/6CE-W0078-02-00
Yamaha LF350 350 4-Stroke 2007-2015 6CE-W0078-01-00/6CE-W0078-02-00

Technical Specifications

Specification Value
Product Type Water Pump Repair Kit / Impeller Kit
Installation Location Lower Unit
Warranty 1-year (aftermarket)
Other Technical Attributes For lower unit water pump assembly

Package Contents

  • 1 x Impeller (6CE-44352-00-00)
  • 1 x Woodruff Key (90280-04M05-00 / 90280-04002-00)
  • 1 x O-Ring (93210-94003-00)
  • 4 x Bolt (97095-08045-00 / 90119-08191-00)
  • 2 x Oil Seal (93104-22M07-00)
  • 1 x Insert Cartridge (6AW-44322-00-00)
  • 1 x Outer Plate, Cartridge (6CE-44323-01-00)
  • 1 x Water Pump Gasket (6CE-44315-00-00)
  • 2 x Dowel Pin (93606-12019-00)
  • 1 x O-Ring (93210-37M67-00)

Installation Guide

  1. Disconnect Power: Start by disconnecting the battery.
  2. Drain Gear Lube: Drain the gear lube from the lower unit to prevent spills.
  3. Remove Lower Unit: Unbolt and carefully detach the lower unit from the outboard engine.
  4. Access Water Pump: Unscrew the bolts on the water pump housing and remove it to expose the impeller.
  5. Remove Old Components: Take out the old impeller, gaskets, wear plate, and seals. Note their orientation.
  6. Clean Surfaces: Thoroughly clean all mating surfaces to ensure a proper seal.
  7. Install New Kit: Assemble the new components from the kit, starting with the base gasket and plate.
  8. Install Impeller: Slide the new impeller onto the driveshaft, ensuring the Woodruff key is in place and the vanes are turned in the correct direction (typically clockwise).
  9. Reassemble Housing: Install the new housing and seals, then tighten the bolts to the manufacturer's recommended torque.
  10. Reinstall Lower Unit: Mount the lower unit back onto the engine and refill it with fresh gear lube.
  11. Test Operation: Reconnect the battery. Safely test the engine with a water supply to confirm a strong and steady stream from the tell-tale outlet.

Troubleshooting & FAQ

How do I confirm this kit fits my Yamaha engine?

First, check the 'Compatible Engine Models' table on this page to ensure your specific model and year range are listed. You can also verify fitment by matching your existing water pump parts to the numbers in our 'Part Number Cross-Reference' table.

How often should I replace my water pump impeller?

As a general rule, we recommend inspecting the impeller annually and replacing it every 1-2 years or 100-200 hours of operation, whichever comes first. Refer to your engine’s service manual for the most accurate maintenance intervals.

What are the signs of a failing water pump?

Common symptoms include the engine overheating at idle or low speeds, a weak or intermittent water stream from the tell-tale outlet, or a melted/brittle impeller discovered during inspection.

OEM vs. Aftermarket?

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.

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

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.

What is your warranty and return policy?

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: 50855472780

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4.1 ★★★★★
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John Maina
Phoenix, US
★★★★★ 5
Bear Witness
Format: Kindle
This is an excellent read for anyone ignorant of the history of Slavery in the United States. It is this account that jolted the abolitionist movement that would later lead to the emancipation proclamation. It is a quick and powerful read of our shameful pass. But it is necessary for us to learn our pass to move forward.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
J
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JC Davenport
Battle Creek, US
★★★★★ 5
Skip the introductions and go right to the narrative
Let's face it. Most of the history I read is written by white people. Some things need to be read in the "first person" and this is one of them. Not only is it a landmark book (not just for it's time but for all time), it is still easy to read, believable, compassionate to all (including slave owners) and completely gripping. It is not too brutally descriptive to be disturbing to any older kids or teens I know, and it is a patient, instructive and compelling story that I believe could still be a powerful, memorable and life changing read for anyone. Personal Note: I went to Maryland public schools in the 70's and early 80's. This was not on my required reading list. I wish it had been, but then maybe I would have hated it. The story of Frederick Douglas is to me overwhelming. The indictment of Southern Christianity is also particularly grievous. I do feel like I'm beginning to get a sense of the longtime North - South cultural divide as a matter of regional . . . religious . . . and economic ... pride. Misc Notes: 1. Brer Rabbit - in the intro to my book - Robert O'Meally mentions Brer Rabbit and Disney's now banned (and well censored) in the USA "Song Of The South" movie (think "Zip-A-De-Do-Da") - I don't have any wisdom on this but Brer Rabbit is a vaguely forbidden character in our country, as is Bugs Bunny, who the writer indentifies as a modern day Brer Rabbit. I always liked Bugs Bunny, but you don't see these cartoons around. I have an older African American friend who asked me if I could find a copy of "Song of the South" which he had fond memories of watching in the movie theater as a kid. Well I couldn't . . . 2. In my appendix, there is mention of pro slavery arguements of the 1840's. One is to the effect of "Slavery itself doesn't hurt slaves . . . its the abuse of slavery by slaveholders that hurts slaves." Hmmm, that sounds familiar . . .
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Reviewed in the United States on November 6, 2013
B
Verified Purchase
bixodoido
Port Orchard, US
★★★★★ 5
An essential American autobiography
As the title implies, this short work is the narrative of Frederick Douglass, an escaped slave. He wrote it by himself, a significant fact in that his prose is so eloquent and his pathos so powerful that it seems impossible for a former slave to have composed it. In this short autobiography, Douglass recounts his life as a slave, and details some of the horrors and atrocities perpetuated on slaves by their fiendish overseers, most of whom Douglass portrays as downright evil. More than just a narrative of his life, Douglass also gives an account of how the desire to be free grew and began to burn within his bosom, and how he grew to hate that horrible institution. Above all, this is a story of a slave learning that he is, in fact, a human being. The significance of this book cannot be overestimated. In it, Douglass effectively dispels a number of popular myths about slaves and slaveholders, and forever changes the way the reader (especially one who lived while slavery still existed) looks at slavery. The theme of this book is very simple: slavery is wrong. It is evil, it is cruel, and, despite what many people thought at the time, the slaves know how cruel it is. Douglass cites several examples of the horrible treatment slaves received, one of them being separation of families. "It is a common custom...to part children from their mothers at a very early age" So it was with Douglass and his own mother. Douglass writes in a very eloquent style, and this contributes to the power of this work. Many people who thought blacks were inferior in intelligence were shown to be sadly mistaken with the coming of Frederick Douglass, a man both educated and refined. It may be said that the book is not entirely fair, for it is decidedly anti-slavery, but it is undoubtedly true for most cases nonetheless. Most of the overseers in Douglass's narrative are demonic and sadistic, but when a good overseer comes along (such as Freeland), he is fair in his treatment of him. One can imagine the fuel this book gave to the abolitionist fire, and it is not difficult to see why Douglass had such an impact on both North and South. This is, in my opinion, a definitive work, in that it shows the horrible institution of slavery in all its barbaric nature, and does it from a firsthand point of view, that of a former slave. This book was a tremendous contribution, both for the light it shed on slavery in general, and for proving that blacks were not intellectually inferior by nature, but instead were "transformed into...brute[s]" at the hands of their overseers. This is a great book, essential for anyone wanting to study the Civil War era or wanting to gain a firmer understanding of slavery.
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Reviewed in the United States on January 13, 2003
J
Verified Purchase
Jacqueline H. Walker
Whiting, US
★★★★★ 4
I always feel comfortable and at ease when I go...
Format: Paperback
Good purchase
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Reviewed in the United States on March 28, 2026
M
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marcus chatman
Los Angeles, US
★★★★★ 5
This man's ability to describe the various monstrosities encountered throughout his journey in such a beautiful, articulate
I found this book, though historic, to be a modern marvel. I find not only the man himself but even more so the writings of Frederick Douglass to be totally FASCINATING! This man's ability to describe the various monstrosities encountered throughout his journey in such a beautiful, articulate, and eloquent way is utterly GENIUS! In reading this timeless masterpiece I discovered that this man bears the unmatched, undisputed spirit of a champion; the undying essence of a true warrior that I'm sure would resonate to any and every reader who would be so bold as to take a glance at the greatness that lies between the pages of this work of genius. This man's profound desire to acquire knowledge and educate himself by whatever means necessary exudes a ground shaking, bone rattling determination as I have scarcely; if at all, ever heard of. Frederick Douglass is to me the epitome of class and integrity and can serve as a role model and an inspiration to anyone in search of an incentive to better themselves, even or ESPECIALLY in the face of adversity. In this BRILLIANT account of his heroic journey from slavery to freedom he bestows a wisdom; a very keen insight, and he embodies an honor, the likes of which I have never seen in ANY other writer. I HIGHLY recommend this book to ANYBODY who is in search of inspiration or just a GREAT read!
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Reviewed in the United States on February 21, 2015

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