SKU: 40453859637

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

Sale price$26.55 Regular price$29.50
Save 10%

Pay in installments of $7.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Water Pump Repair Kit - Fits Yamaha 4.2L V6 225HP-300HP (Replaces 6CE-W0078-01-00, 6CE-W0078-02-00)Water Pump Repair Kit Fits Yamaha 4. 2L V6 225HP 300HP (Replaces 6CE W0078 01 00, 6CE W0078 02 00) This water pump repair kit is designed for Yamaha 4 Stroke 4. 2L V6 outboard engines, including 225HP, 250HP, 300HP, and 350HP models from 2007 to 2015. It also fits the VF250 SHO model from 2015. The kit provides all the necessary components for a complete and reliable service of your lower unit's water pump. It serves as a direct replacement for Yamaha

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

This water pump repair kit is designed for Yamaha 4-Stroke 4.2L V6 outboard engines, including 225HP, 250HP, 300HP, and 350HP models from 2007 to 2015. It also fits the VF250 SHO model from 2015. The kit provides all the necessary components for a complete and reliable service of your lower unit's water pump.

It serves as a direct replacement for Yamaha part numbers 6CE-W0078-01-00 and 6CE-W0078-02-00, as well as Sierra equivalents 18-3470 and 18-3471.

  • Includes all required gaskets, seals, impeller, and hardware for a full rebuild.
  • Engineered to meet or exceed OEM specifications for fit and performance.
  • Installs in the lower unit to restore cooling system efficiency.

Part Number Cross-Reference

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

Brand Part Number Superseded By
Yamaha 6CE-W0078-01-00 6CE-W0078-02-00
Yamaha 6CE-W0078-02-00
Sierra 18-3470 18-3471
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
Installation Lower Unit

Package Contents

  • 1 x Impeller (6CE-44352-00-00)
  • 1 x Key/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 Seal, Oil (93104-22M07-00)
  • 1 x Insert/Cartridge (6AW-44322-00-00)
  • 1 x Outer Plate/Cartridge Plate (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 the battery and shift the outboard into neutral. Drain the gearcase oil from the lower unit.
  2. Remove the bolts securing the lower unit to the midsection and carefully detach the lower unit.
  3. Unbolt and remove the water pump housing to access the old impeller and other components.
  4. Thoroughly clean the mating surfaces of the housing and lower unit, removing any old gasket material or debris.
  5. Install the new water pump gasket, outer plate, woodruff key, and impeller onto the driveshaft.
  6. Lubricate the inside of the new insert/cartridge and slide the housing over the impeller, ensuring the impeller vanes are oriented correctly.
  7. Install the new seals in the housing and tighten the bolts to the manufacturer's specified torque.
  8. Reinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube are properly aligned.
  9. Refill the lower unit with the correct type and amount of gearcase lubricant.
  10. Reconnect the battery and test the engine's cooling system using a flush attachment, checking for a strong, steady stream of water.

Troubleshooting & FAQ

How do I confirm this kit fits my specific engine?
First, check your engine's model and year against the "Compatible Engine Models" table. For Yamaha owners, we provide a Serial Number Guide and Parts Diagrams to help you verify part numbers and compatibility with absolute certainty.

What are the common signs that my water pump needs replacement?
The most common symptoms of a failing water pump are an overheating engine alarm and a weak or inconsistent stream of water from the "tell-tale" outlet. Reduced engine performance at high RPMs can also indicate a cooling problem.

How often should I replace the water pump or impeller?
For preventative maintenance, it is recommended to inspect and likely replace the water pump impeller every 1 to 2 years or every 100-200 hours of use, especially if operating frequently in saltwater or sandy/silty conditions. This complete kit ensures all wear items are replaced at once.

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: 40453859637

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 25 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Sweet Cyn
Waukegan, US
★★★★★ 5
Great product, poorly designed bottles.
Scent: Onion Unscented
I like this product! However, the bottles are heavy, bulky and awkward, what a waste of plastic. The design is poor. The conditioner top was broken, and the product was so thick it was very hard to try and get out of the unyielding bottle when I unscrewed it. Had to ask for a replacement. But it smells great and leaves my hair very soft. I had gotten one for my mother (87) but the bottle was a little much for her, too bad. There's less in it than what it looks like, as it has an inner, smaller container. A lot of trouble and cost to save a small amount of product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
R
Verified Purchase
Ree
New York, US
★★★★★ 4
Great product for damaged bleached hair
Scent: Keratin
Great shampoo and conditioner. Smooths the frizzy ends. I bleach my hair and I am unhappy that this product appears to have washed or altered the toner. I have platinum bleached hair and I put a pale blonde toner on it. I waited 4 days after I bleached and toned my hair to use your product and the end result was yellow hair not that beautiful pale blonde color. I will play around with purple shampoo and your product to see if I can find a happy medium because I do love the silky feeling on my damaged over-processed hair. Thanks for developing such a wonderful product for damaged hair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
C
Verified Purchase
Christopher Compton
Fort Morgan, US
★★★★★ 5
Shiny Hair? Yes please
Scent: Onion Unscented
I have used this product just a few times since buying it. It made my hair shiny and smooth. Very minimal frizz. I bought it after doing research on how women helped their hair before all these hair products came out and Onion water was one of the top answers. After believing that I wanted onion smell in my hair, I came across this product and it actually smells SO NICE. After blow drying my hair, my hair was fuller and bouncier. I saw a difference right away. I have seen less hair in my shower drain and I honestly couldn't be happier with this combo.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
P
Verified Purchase
patty
Fort Morgan, US
★★★★★ 5
Excellent product at a very fair price
Scent: Caffeine
I have been using the caffeine version of this shampoo and conditioner for a little over three months. I like to give a new shampoo and conditioner about three months before concluding if it’s a hit or a miss. Originally, I was using the biotin version of this shampoo for approximately two years and was very happy with the results. I needed to reorder, so I was looking over the other options in this same brand. This brand is considered to be a good quality product. I did do a bit of research before originally purchasing the biotin version. The biotin version is a lightweight product that did not weigh my hair down with build up over several uses. I ended up needing to use a clarifying shampoo only about once a month, as opposed to once every week. I have very fine, thin hair and a lot of products I have tried over the years have not worked for me because of the heaviness that leaves my hair flat. I did not have this result with the Bellisso Biotin shampoo. Bellisso is very well priced, and in my opinion, is comparable to more expensive salon products. I do like to try new things, so trying a different version of a brand that I was already happy with seemed like it didn’t come with much risk. Comparing the two versions, biotin vs caffeine: The biotin option worked very well on my fine, thin hair. The shampoo had a bit of a lower amount of foaming, but it did get my hair clean. The biotin conditioner also worked well, and was easy to rinse out and did not leave a residue on my hair. The caffeine version is very different than the biotin version, but neither in a good way or a bad way. Just different. I noticed that much less product of the caffeine shampoo and conditioner is needed to get the job done. The amount of product needed is probably highly dependent on your particular hair, so keep in mind, I probably have less hair than most people. The shampoo foams ALOT. I didn’t mind this at all. Per the instructions on the bottle, you are supposed to apply and massage your scalp and rinse after 2-3 minutes so the caffeine can be absorbed into your scalp, so having that extra foaming helps. This is meant to stimulate circulation in the scalp, and promote hair growth. If you are the girl that is always in a hurry, this is probably not the version of this shampoo for you :) The caffeine conditioner goes a very long way, so best to start with half as much as you normally use and go from there. All in all, I’m happy with both versions and I would definitely consider trying another version of this brand. I would highly recommend this brand in whichever version suits your personal hair type and needs. The price is right, as is the quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Gotta Buy Them All!!
Scent: Keratin
I currently have these sets: - Rice Water - Keratin - Biotin - Cleanser I have been a hairstylist for about fourteen years and have tried EVERY expensive, professional salon brand product out there that promised great results for moisture, repair, scalp health, etc. and none serve the purpose for more than a day or two. These products have been a game changer. I have very curly, fine-medium strands with high density that is consistently dry, brittle, extremely frizzy, and tends to clump together with most products I have used that promise to repair and assist. I started using the cleanser (I recommend using it ONCE a week at max -- it exceeds the expectations and will leave your hair feeling stripped and dry if you use it too often) to start with, to remove build-up. My hair obviously felt incredibly dry after this, so I washed a second time with Biotin and then finished with the biotin conditioner -- for the first time in years, my hair feels AMAZING. It has been three days since the last wash. My hair typically feels heavy and weighed down after the first day. I usually braid my hair lightly and put it in a silk bonnet and I wake up with it having absorbed any bit of moisture it can, and it still felt like straw. After two uses of the biotin, I am able to go 3-4 days between washes and my hair and scalp still feel light, fluffy, fresh, and my hair is incredibly soft. My curls went from loose, messy waves to finally retaining the curl pattern again. My hair isn't breaking off every time I run a pick through it. I can actually easily detangle it while the conditioner is in, and was able to leave the conditioner in for a treatment overnight and it felt even better. My roommates have been using the various ones I have gotten for us, as well, and expressed really enjoying working with their hair again afterward. It responds well to other products cleanses really well afterward. Just a reminder: Most of these are sulfate free. You will not get much in the way of bubbly lathers from this, but your hair WILL be clean. Work it into your hair for 3-5 minutes before rinsing the shampoo out and even let it sit for a few minutes before rinsing while you do everything else. More does not equal better -- this product goes a long way! We just purchased the Apple Cider Vinegar and Nettle formulas and I'll update if they are not as great as the others!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

recommand products