SKU: 56175102364

Water Pump Impeller Kit with Housing – Fits Yamaha 40-60 HP (Replaces 63D-W0078-01-00, Sierra 18-3415)

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Description

Water Pump Impeller Kit with Housing – Fits Yamaha 40-60 HP (Replaces 63D-W0078-01-00, Sierra 18-3415)Water Pump Impeller Kit with Housing Fits Yamaha 40 60 HP (Replaces 63D W0078 01 00, Sierra 18 3415) This complete water pump repair kit is designed for select Yamaha 2 stroke and 4 stroke outboard motors. It provides a reliable solution for maintaining your engines cooling system, fitting 2 Stroke models from 40 50 HP (19952009) and 4 Stroke models from 40 60 HP (19952009). This kit serves as a direct replacement for Yamaha part numbers 63D W0078 01

Water Pump Impeller Kit with Housing – Fits Yamaha 40-60 HP (Replaces 63D-W0078-01-00, Sierra 18-3415)

This complete water pump repair kit is designed for select Yamaha 2-stroke and 4-stroke outboard motors. It provides a reliable solution for maintaining your engine’s cooling system, fitting 2-Stroke models from 40-50 HP (1995–2009) and 4-Stroke models from 40-60 HP (1995–2009).

This kit serves as a direct replacement for Yamaha part numbers 63D-W0078-01-00 and 63D-W0078-03-00, as well as Sierra part numbers 18-3415 and 18-3434, ensuring compatibility and performance.

  • Includes everything needed for a full replacement: housing, impeller, plate, gasket, and hardware.
  • Engineered for lower unit installation.
  • Features a durable Nylon PA66 plastic housing and a high-performance neoprene rubber impeller.

Part Number Cross-Reference

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

Brand Part Number
Yamaha 63D-W0078-01-00
Yamaha 63D-W0078-03-00
Sierra 18-3415
Sierra 18-3434

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 C/CV-40 40 2-Stroke 1998 & Up 63D-W0078-01-00
Yamaha 40/P-40 40 2-Stroke 1995-2005 63D-W0078-01-00
Yamaha F40 40 4-Stroke 1999 63D-W0078-01-00
Yamaha F50 50 4-Stroke 1995-2009 63D-W0078-01-00
Yamaha 50 50 2-Stroke 1995 & Up 63D-W0078-01-00
Yamaha T-50 50 2-Stroke 1996-1997 63D-W0078-01-00
Yamaha P50 50 2-Stroke 1995-1996 63D-W0078-01-00
Yamaha C50 50 2-Stroke 1998-2001 63D-W0078-01-00
Yamaha F60 60 4-Stroke 2002-2009 63D-W0078-01-00

Technical Specifications

Specification Value
Product Type Water Pump Impeller Kit with Housing
Installation Lower Unit
Housing Material Nylon PA66 Plastic
Housing Color Black
Impeller Material Neoprene Rubber
Weight 320 g (11.3 oz)
Warranty 1 Year
Other Technical Attributes Complete repair kit with housing

Package Contents

  • 1 x Water Pump Housing (63D-44311-00-00)
  • 1 x Neoprene Impeller (6H3-44352)
  • 1 x Insert Cup (63D-44322-00-00)
  • 1 x Wear Plate (63D-44323-00)
  • 1 x Pump Case Gasket (63D-44316-00-00)
  • 4 x Bolts (90119-08M15-00)
  • 1 x Impeller Key (90280-03024-00)
  • 1 x Water Seal Damper (18-1830)
  • 1 x Cover, Water Pump Housing (63D-44312)
  • 1 x O-Ring (93210-59MG7)

Installation Guide

For a successful installation, follow these general steps. Professional installation is always recommended.

  1. Disconnect Battery: Ensure the engine is off and disconnect the battery cables to prevent accidental starting.
  2. Drain Gearcase Oil: Place a drain pan under the lower unit and remove the drain and vent screws to drain the gearcase lubricant.
  3. Remove the Lower Unit: Unbolt the lower unit from the upper casing. This may also require disconnecting the shift linkage.
  4. Access the Water Pump: With the lower unit removed, locate and unbolt the water pump housing.
  5. Remove Old Components: Carefully remove the old housing, impeller, wear plate, gaskets, and seals. Note the orientation of the impeller vanes.
  6. Clean All Surfaces: Thoroughly clean the mounting surfaces on the driveshaft and lower unit to ensure a proper seal.
  7. Install New Components: Assemble the new kit components in reverse order. Lightly grease the impeller and insert cup. Ensure the impeller key is correctly seated.
  8. Re-attach Lower Unit: Bolt the lower unit back onto the engine, reconnecting any linkages. Torque bolts to manufacturer specifications.
  9. Refill Gearcase Oil: Fill the lower unit with the specified marine gear lubricant until it flows from the upper vent hole, then replace both screws.
  10. Test Operation: Reconnect the battery. Start the engine in a safe environment with a water supply (like on "earmuffs") and verify a steady stream of water from the tell-tale outlet.

Troubleshooting & FAQ

How do I confirm this fits my engine?

First, check the "Compatible Engine Models" table on this page to see if your engine's model and year range are listed. Next, verify that your existing part number matches one of the numbers in our "Part Number Cross-Reference" section. Comparing the product images to your old part is also a critical final step.

What are the signs of a failing water pump impeller?

The most common sign is a weak or non-existent water stream from the "tell-tale" outlet. Other symptoms can include the engine overheating alarm sounding or the engine running hotter than usual. Reduced performance can also be an indicator.

How often should I replace the water pump impeller?

For preventative maintenance, it is highly recommended to replace your impeller every year or every 100 hours of operation, whichever comes first. This is especially important if you operate in saltwater or water with heavy sediment.

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: 56175102364

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4.7 ★★★★★
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Product Reviews
M
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mpd_26
Bozeman, US
★★★★★ 5
Awesome enrichment toy!
Size: Large, Color: Green, Size: Large, Color: Green
These are awesome! My dogs love them and keep them occupied for 30-60 mins so I can make and enjoy my coffee in peace before work. They are very easy to clean, but as others have mentioned, they can get stuck. I had to take a pliers to get one of them unscrewed. Hopefully that’s not a constant issue. I do wish they were more durable since there were a lot of teeth marks in them after the first use, so I upgraded to the black super chewer one. I’m happy I gave these a try and feel they are worth the money, especially for high energy dogs who get bored easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
M
Verified Purchase
Meg
Boise, US
★★★★★ 5
Best toy/treat! (Use oil on inner screw to open)
Size: Large, Color: Green
My dogs love these! This gives them a dedicated 20-40min of dog joy. They often get up halfway thru and switch but whatever makes them happy. They do get STUCK! And can be impossible to open. I now use a dot of olive oil on each level of the screw and then twist it in and out a couple times to distribute the lube so its possible to open when they are done. I find it very important to collect them immediately when they are done and open back up for cleaning. Do not let them dry as it will be very difficult to open.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
W
Verified Purchase
wendy weather
Port Orchard, US
★★★★★ 5
These are must haves for dog owners!
Size: Large, Color: Pink
These things have saved my sanity! I have two dogs and we use these at least two to three times per week. They are high quality and last thru heavy chewers. We spread peanut butter inside for a quick treat when clipping nails, or make our own mix of Greek yogurt, dry oatmeal, diced carrots, a little pumpkin, and a bit of diced apple, mix it up and freeze it in the Pupsicle mold. That way we have a bunch ready to go and aren’t buying expensive refills. The colors are adorable, the pupsicle is durable, and the dogs LOVE them. FYI - it’s a good idea to use a little olive or avalado oil on the threads when closing them up - it makes life so much easier when screwing then on and off. We throw ours into the dishwasher.
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Reviewed in the United States on June 6, 2026
P
Verified Purchase
professional grade
New York, US
★★★★★ 5
Like unto the Holy Grail of food toys. [I recommend buying the separate treat mold, too.]
Size: Large, Color: Green
So far, I have no complaints. I can see that this toy might not work well for some combinations of dogs and people, but for my two current dogs (blue heeler and small terrier), this thing, plus the treat mold, is GREAT! I love that the dogs get it more or less fully emptied, and it is washable. I love that I can pre-prepare a whole bunch of frozen fillings by using the treat mold (sold separately). Yes, I agree that this is a very expensive item, especially if you buy the treat mold along with the toy. I bought two toys at a very reduced price on Prime day, also bought the treat mold at full price, and consider the combined purchase a great value at this cost. The current price (for the toy) is comparable to the cost of an extra-large Toppl, and I've seen it at a price similar to the current cost of a large Toppl. I checked the current price of the XXL "extreme" Kong I needed to use for one dog, and the current price on a different web site is almost the same as the Woof Pupsicle. To answer questions and issues I've seen mentioned... * My terrier weighs 16 pounds and uses the large toy with no problem. Possibly it is minimally less thoroughly cleaned out, but I'm not positive about that. My only warning would be that you ought to keep track of calories and/or what you put in it because you could potentially give a small dog way too many empty calories from "junk food." * The toy is still usable without the treat mold. Just fill up the solid half of the toy and stick it in the freezer overnight, same as you would do with a Kong, except it takes up less space. * Do introduce it properly, by initially giving it with NON-frozen and sticky food in it. An even more slow, careful, step-wise introduction may be necessary if your dog is a destructo-dog. * The terrier takes about 20 minutes to empty it of frozen canned dog food. That's non-trivial, and I'm not sure why people are complaining. The heeler takes less time (maybe 15 minutes?), but it's still an amount of time that is helpful for me, and this licking activity seems to be especially calming for her (as compared to using the food puzzle toys with kibble). * It initially was extremely difficult to open and close the thing. I was best able to do it with a "light" touch, not pulling and making sure not to press the two surfaces together. After not very long, it became much easier. I didn't need to use oil. If you have trouble getting it closed, it became a lot easier after the solid part was frozen (while the vented part stayed at room temperature). * I agree with others that a larger version might be nice, but a larger version might make dogs more likely to destroy the toy in place of emptying it by focused licking. * I'm not sure that any of these toys are truly indestructible. People are mentioning Kongs. Well, my Kongs have required periodic replacement. They have tooth marks and eventually get "modified" to where pieces might get torn off and consumed. For one dog, I had to upgrade to the XXL-size Extreme (black) version, and she also put tooth marks in that. I own a fortune's worth of Kongs, Toppls, and a couple similar food toys, and they all have their issues. They have holes in them that allow liquid to immediately come out (before freezing occurs). They are bulky and use up a lot of space in the freezer, and the unusual shapes make them non-stackable. For me, Kong toys are time-consuming to fill and difficult to clean. My dogs couldn't get the very end cleaned out without throwing the Kong around (making a big mess), and even then it wasn't fully clean. Some did end up with mold in that part of them. [It looks like new inventions, like plugs (or something like that), may solve some of the problems; I didn't have those.] I mention the other toys only to say that this unique brilliant toy has seeming solved all those problems, and my dogs truly LOVE this toy as well. Be assured, I will update this review if anything changes.
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Reviewed in the United States on July 24, 2023
M
Verified Purchase
Matthew Paul
Phoenix, US
★★★★★ 4
Perfect for Our Nervous Rescue Dog
Size: Large, Color: Green
First Impressions I bought the Pupsicle for our new rescue dog who was very nervous whenever we had to leave the house. Right out of the box it felt sturdy and well-made, and I liked that it wasn’t just another cheap chew toy. ⸻ Setup & Ease of Use I went with the premade treat inserts to start, which made it super simple — just pop one in and hand it over. It’s also dishwasher-safe, which is a huge win for me since I don’t want to deal with scrubbing peanut butter out of toys. ⸻ Performance in Real Life She loves it. The Pupsicle has kept her occupied and calm, which has really helped her acclimate to her new home. Instead of pacing or whining when we leave, she settles down with this toy and stays busy. ⸻ Pros & Cons Pros: • Helps reduce anxiety for nervous dogs • Very durable and solid • Easy to clean (dishwasher safe) • Premade inserts make it effortless Cons: • On the heavier side, so probably best for medium+ dogs • Inserts are convenient but add a little extra cost ⸻ Who It’s For Perfect for new dog owners, rescues, or anyone with a dog who needs a healthy distraction when left alone. ⸻ Final Verdict The Pupsicle has made a noticeable difference for our rescue pup. It’s durable, easy to use, and has genuinely helped her feel more at ease in her new environment. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025

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