SKU: 48813732700

Water Pump Impeller Repair Kit – Fits Yamaha 40/50/60 HP Outboards (Replaces 63D-W0078-01-00, 6H3-44352-00-00)

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Description

Water Pump Impeller Repair Kit – Fits Yamaha 40/50/60 HP Outboards (Replaces 63D-W0078-01-00, 6H3-44352-00-00)Water Pump Impeller Repair Kit Fits Yamaha 40 50 60 HP Outboards This water pump impeller repair kit provides a complete solution for servicing the cooling system on a wide range of Yamaha outboards. It is designed for Yamaha 2 Stroke 40 HP and 50 HP models (19972006) and 4 Stroke F40, F50, and F60 models (1997Current). Engineered as a direct replacement for OEM part numbers 63D W0078 01 00, this kit ensures proper fit and function, restoring your

Water Pump Impeller Repair Kit – Fits Yamaha 40/50/60 HP Outboards

This water pump impeller repair kit provides a complete solution for servicing the cooling system on a wide range of Yamaha outboards. It is designed for Yamaha 2-Stroke 40 HP and 50 HP models (1997–2006) and 4-Stroke F40, F50, and F60 models (1997–Current).

Engineered as a direct replacement for OEM part numbers 63D-W0078-01-00, this kit ensures proper fit and function, restoring your engine's cooling performance and preventing overheating.

  • Includes a high-quality neoprene impeller, stainless steel cup and plate, and necessary gaskets and seals for a comprehensive installation.
  • Crafted for direct OEM replacement, ensuring seamless installation without modifications.
  • Restores cooling system efficiency, a critical maintenance task for engine longevity and reliability.

Part Number Cross-Reference

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

Brand Part Number Notes
Yamaha 63D-W0078-01-00 Current Kit Part Number
Yamaha 63D-W0078-00-00 Superseded by 63D-W0078-01-00
Yamaha 63D-W0078-02-00 Superseded by 63D-W0078-01-00
Yamaha 63D-W0078-03-00 Superseded by 63D-W0078-01-00
Yamaha 6H3-44352-00-00 Impeller Only
Sierra 18-3434 Aftermarket Equivalent

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.

Yamaha 2-Stroke Models

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 40EJRV, 40EJRW, 40EJRX 40 2-Stroke 1997-1999 63D-W0078-01-00
Yamaha 40ELRV, 40ELRW 40 2-Stroke 1997-1998 63D-W0078-01-00
Yamaha 40ESRV, 40ESRW, 40ESRX 40 2-Stroke 1997-1999 63D-W0078-01-00
Yamaha 40MJHV-Z 40 2-Stroke 1997-2001 63D-W0078-01-00
Yamaha 40MLHV-Z 40 2-Stroke 1997-2001 63D-W0078-01-00
Yamaha 40MSHV-X 40 2-Stroke 1997-1999 63D-W0078-01-00
Yamaha 40TLHV 40 2-Stroke 1997 63D-W0078-01-00
Yamaha 40TLR, 40TLRA-D 40 2-Stroke 2002-2005 63D-W0078-01-00
Yamaha 40TLRV-Z 40 2-Stroke 1997-2001 63D-W0078-01-00
Yamaha C40TLRV-Z 40 2-Stroke 1997-2001 63D-W0078-01-00 Commercial model
Yamaha C40TLRA-B 40 2-Stroke 2002-2003 63D-W0078-01-00 Commercial model
Yamaha P40TLHW, P40TLRW 40 2-Stroke 1998 63D-W0078-01-00
Yamaha 50EJRV-Z 50 2-Stroke 1997-2001 63D-W0078-01-00
Yamaha 50ELRV, 50ELRW 50 2-Stroke 1997-1998 63D-W0078-01-00
Yamaha 50TLHV 50 2-Stroke 1997 63D-W0078-01-00
Yamaha 50TLR, 50TLRA-D 50 2-Stroke 2002-2005 63D-W0078-01-00
Yamaha 50TLRV, 50TLRZ 50 2-Stroke 1997, 2001 63D-W0078-01-00
Yamaha C50TLRW-Z 50 2-Stroke 1998-2001 63D-W0078-01-00 Commercial model

Yamaha 4-Stroke Models

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F40TLRX 40 4-Stroke 1999 63D-W0078-01-00
Yamaha F50LA, F50LB 50 4-Stroke 2012-2016 63D-W0078-01-00
Yamaha F50TLHV 50 4-Stroke 1997 63D-W0078-01-00
Yamaha F50TLR 50 4-Stroke 2005-2011 63D-W0078-01-00
Yamaha F50TLRA-D 50 4-Stroke 2002-2005 63D-W0078-01-00
Yamaha F50TLRV-Z 50 4-Stroke 1997-2001 63D-W0078-01-00
Yamaha F60JA, F60JB 60 4-Stroke 2012-2016 63D-W0078-01-00
Yamaha F60LA, F60LB 60 4-Stroke 2012-2016 63D-W0078-01-00
Yamaha F60LHA, F60LHB 60 4-Stroke 2011-2016 63D-W0078-01-00
Yamaha F60TJR 60 4-Stroke 2005-2007 63D-W0078-01-00
Yamaha F60TJRB-D 60 4-Stroke 2003-2005 63D-W0078-01-00
Yamaha F60TLR 60 4-Stroke 2005-2011 63D-W0078-01-00
Yamaha F60TLRA-D 60 4-Stroke 2002-2005 63D-W0078-01-00
Yamaha T50TLRV 50 4-Stroke 1997 63D-W0078-01-00 High Thrust
Yamaha T50TLRC 50 4-Stroke 2004 63D-W0078-01-00 High Thrust

Technical Specifications

Specification Value
Product Type Water Pump Impeller Repair Kit
Installation Direct OEM Replacement
Material Neoprene Impeller, Stainless Steel Cup and Plate
Dimensions 15.8 × 10.2 × 5.1 cm (6.22 × 4.02 × 2.01 inches) package dimensions
Weight 0.24 kg (8.4 oz)
OEM Part Numbers 63D-W0078-00-00, 63D-W0078-01-00, 63D-W0078-02-00, 63D-W0078-03-00
Impeller Part Number 6H3-44352-00-00

Package Contents

  • 1 x Cartridge Insert (63D-44322-00-00)
  • 1 x Impeller (6H3-44352-00-00)
  • 1 x Pump Housing Cover (63D-44312-00-00)
  • 1 x Cartridge Outer Plate (63D-44323-00-00)
  • 1 x O-Ring (93210-59MG7-00)
  • 1 x Water Pump Gasket (63D-44316-00-00)
  • 4 x Bolts with Washers (90119-08M15-00)
  • 1 x Water Seal Damper 2 (663-44366-00-00)
  • 1 x Woodruff Key (90280-03024-00)

Installation Guide

  1. Safety First: Disconnect the battery and ensure the engine cannot start accidentally. Disconnect the shift linkage before proceeding.
  2. Remove Lower Unit: Remove the mounting bolts that secure the lower unit (gearcase) to the engine's midsection and carefully lower it.
  3. Access the Pump: With the lower unit removed, locate and unbolt the water pump housing (typically 4-5 bolts).
  4. Disassemble Old Pump: Remove the old housing, impeller, wear plate, gaskets, and seals. Take note of the orientation of the old impeller's fins.
  5. Clean Surfaces: Thoroughly clean the mounting surfaces on the driveshaft and lower unit to remove any old gasket material or corrosion.
  6. Install New Components: Install the new water pump gasket, outer plate, and Woodruff key on the driveshaft.
  7. Install Impeller: Slide the new impeller onto the driveshaft, rotating it clockwise to bend the vanes correctly as it enters the lubricated housing.
  8. Reassemble Housing: Secure the new housing with the new bolts and tighten them to the manufacturer's specified torque.
  9. Reinstall Lower Unit: Carefully guide the lower unit back into place, ensuring the driveshaft, shift shaft, and water tube align. Re-secure the mounting bolts.
  10. Final Checks: Reconnect the shift linkage and battery. Test the engine on a water supply (using "ear muffs" or in the water) and confirm a steady stream 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 cross-reference your engine's model and year with the detailed lists in the 'Compatible Engine Models' section. Verifying the OEM part number (63D-W0078-01-00) against your service manual or existing part also ensures a correct match.

Q: What are the common symptoms of a failed water pump impeller?

A: Key signs include the engine overheating at idle or low speeds, a weak or intermittent water stream from the "telltale" outlet, or finding brittle, cracked, or missing vanes on the old impeller during inspection.

Q: How often should the water pump impeller be replaced?

A: As a crucial part of preventative maintenance, we recommend replacing the impeller every 1 to 2 years or every 100-200 hours of use. This can vary based on operating conditions, especially in saltwater or sandy/silty environments.

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: 48813732700

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B. Stubby
Cuba, US
★★★★★ 3
A familiar story, just with…..less.
Format: Kindle
So, as other reviewers make clear, this is very similar to Pack Darling and The Beta. It’s much closer aligned with The Beta, in plot and maybe more like Pack Darling with characters. That being said, I don’t hate this…..but it wasn’t great either. It’s both books mentioned but just….less. Less angst, less emotion, less feeling. The plot feels very half fleshed out, and the “bad guy” feels underwhelming. I didn’t really feel any real emotions from and of the male leads, except maybe Oliver. The others fell sorta flat for me. And Mika makes herself out to be this big bad ass straight outta training and then we never see it from here again with the one fitting room incident as the exception. SPOILER: The whole, “Oh, I’m actually probably an Omega, but I don’t wanna be but I do actually wanna be but no one can ever know my secret that I do nothing to hide “ thing fell so flat. She never commutes to believing she was secretly an omega, but also mentions her “secret” a lot. It just felt so manufactured. I’m intrigued enough to read part 2 and see how the author closes everything out, but this is not one I’ll recommend or ever come back to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2024
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SR
Lexington, US
★★★★★ 5
Good start to a series
Format: Kindle
I delayed reading the series for reasons I don’t remember. But my TBR list is huge so I thought I’d take a shot of this and I was pleasantly surprised. I didn’t think the blurb about it was anything special. But it was a very good book. It took some interesting twists and turns. I am so glad the second book is already out. Because I would not have waited patiently. Very slow burn but good storyline. 🔥🔥/5
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Reviewed in the United States on January 3, 2025
J
Verified Purchase
Jammie Clark
Port Orchard, US
★★★★★ 4
A good read
Format: Kindle
Multiple points of view. 3 Alpha men and an Omega male. She is a Beta in training for a new program placing betas in Alpha/Omega packs. Mila is only doing the program for the money to take care of her dad. She wasn't expecting to fall for a pack but when she sees this packs Omega she is done for. There is just something about him. His Alphas are good looking as well. Too bad she is hiding a secret and their government is acting shady. I liked it and can't wait to see where their story goes.
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Reviewed in the United States on November 14, 2023
B
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Bri Hires
Charlottesville, US
★★★★★ 3
Slightly repetitive but I did love some things
Format: Kindle
I love this type of story. And omegaverse is one of my all time favorite genres. But there are a few things that pulled me out of my enjoyment while I was reading. It was repetitive at times as well as struggled with telling not showing. So we didn’t always feel like we were experiencing things with the main character. There were also some plot holes but they may still be answered in part 2. Now this isn’t to be said I didn’t enjoy parts of the story. I loved the almost instant love between Mila and Oliver. And how he started changing around her.
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Reviewed in the United States on February 15, 2024
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Kimberly G
Alexandria, US
★★★★★ 5
delightful read
Format: Kindle
What a delightful read. The characters are awesome, the plot was so good, I loved it. I was intrigued and it kept me wanting more. Told in multiple pov, the book sucks you in and doesn’t let go. I cannot wait to read the next book.
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Reviewed in the United States on January 30, 2025

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