SKU: 97467253060

Water Pump Impeller Kit – Fits Yamaha F8, F9.9, F20, F25, FT8, FT9.9 Outboards (Replaces 61N-W0078-11-00)

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Description

Water Pump Impeller Kit – Fits Yamaha F8, F9.9, F20, F25, FT8, FT9.9 Outboards (Replaces 61N-W0078-11-00)Water Pump Impeller Kit Fits Yamaha F8, F9. 9, F20, F25, FT8, FT9. 9 Outboards (Replaces 61N W0078 11 00) This water pump impeller repair kit provides a complete solution for servicing the lower unit cooling system on a wide range of Yamaha outboards. It is designed to fit specific 4 stroke models including the F20, F25, FT8, and FT9. 9 series, as well as 2 stroke 30G and C30 models. It serves as a direct replacement for multiple Yamaha and

Water Pump Impeller Kit – Fits Yamaha F8, F9.9, F20, F25, FT8, FT9.9 Outboards (Replaces 61N-W0078-11-00)

This water pump impeller repair kit provides a complete solution for servicing the lower unit cooling system on a wide range of Yamaha outboards. It is designed to fit specific 4-stroke models including the F20, F25, FT8, and FT9.9 series, as well as 2-stroke 30G and C30 models.

It serves as a direct replacement for multiple Yamaha and aftermarket part numbers, ensuring comprehensive compatibility for routine maintenance or repair.

  • Complete Kit: Includes the pump housing, impeller, wear plates, seals, and all necessary hardware for a full replacement.
  • Durable Materials: Features a corrosion-resistant aluminum pump housing for longevity in marine environments.
  • Installation Location: Designed for installation in the outboard's lower unit.

Part Number Cross-Reference

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

Brand Part Number Superseded By
Yamaha 61N-W0078-10-00 61N-W0078-11-00
Yamaha 61N-W0078-11-00 61N-W0078-13-00
Yamaha 61N-W0078-13-00 61N-W0078-14-00
Yamaha 61N-W0078-14-00
Sierra 18-3432
Recmar RE-61N-W0078-11

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 4-Stroke Models

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F20AE 20 4-Stroke 2003–2006 61N-W0078-11
Yamaha F20DET 20 4-Stroke 2011–2015 61N-W0078-11
Yamaha F25A, AE, AM, AW, EL, MH 25 4-Stroke 1998–2009 61N-W0078-11
Yamaha F25DE, DM, MH 25 4-Stroke 2009–2015 61N-W0078-11 6BT1-6BT8
Yamaha FT8D/FT8G 8 4-Stroke 2001–2014 61N-W0078-11
Yamaha FT9.9G 9.9 4-Stroke 2008–2012 61N-W0078-11
Yamaha FT9.9J 9.9 4-Stroke 2013+ 61N-W0078-11

Yamaha 2-Stroke Models

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 30G 30 2-Stroke 1993–2000 61N-W0078-11
Yamaha C30 30 2-Stroke 1993–1997 61N-W0078-11

Technical Specifications

Specification Value
Product Type Water Pump Impeller Repair Kit
Installation Lower Unit
Housing Material Aluminum
Warranty Manufacturer's Standard
Other Technical Attributes Includes pump housing and complete impeller assembly

Package Contents

  • 1 x Pump Body (61N-44311-00-00/61N-44311-01-00)
  • 1 x Impeller (6H4-44352-00/6H4-44352-01/6H4-44352-02)
  • 1 x Cartridge Insert (63V-44322-00-00)
  • 1 x Water Seal Damper (6L2-44367-00-00)
  • 1 x Woodruff Key (664-44338-00-00)
  • 1 x O-Ring (93210-49046-00)
  • 1 x Cartridge Outer Plate (68T-44323-00-00)
  • 2 x Dowel Pins (93604-10M03-00)
  • 4 x Bolts (97095-08045-00)
  • 2 x Plates (63V-44328-01-00)

Installation Guide

  1. Disconnect the negative battery cable and remove the engine cover.
  2. Shift the outboard into neutral. Remove the bolts securing the lower unit (gearcase) to the upper casing.
  3. Carefully lower the gearcase, ensuring the driveshaft, shift shaft, and water tube disengage smoothly.
  4. Place the lower unit on a workbench. Remove the four bolts securing the water pump housing.
  5. Slide the old pump housing up and off the driveshaft. Remove the old impeller, key, and wear plates.
  6. Thoroughly clean the driveshaft and the pump mounting surface.
  7. Install the new Woodruff key, gaskets, and wear plates from the kit.
  8. Slide the new impeller onto the driveshaft, turning it clockwise to align with the key and seat the vanes.
  9. Lightly grease the inside of the new pump housing and slide it over the impeller.
  10. Align the housing bolt holes, install the new bolts with seals, and tighten them to the manufacturer's specified torque.
  11. Reinstall the lower unit, carefully aligning the driveshaft splines, water tube, and shift shaft.
  12. Secure the lower unit with its mounting bolts and reconnect the battery. Test run the engine with a water supply.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Yamaha engine?

A: First, check your engine's model, horsepower, and year against the comprehensive "Compatible Engine Models" tables provided above. For additional verification, you can use our Yamaha Serial Number Guide to pinpoint your exact engine model and the corresponding OEM part numbers.

Q: What are the signs my water pump impeller needs to be replaced?

A: Common indicators of a failing impeller include a weak or non-existent water stream from the "tell-tale" outlet, engine overheating alarms, or a noticeable drop in cooling performance. A visual inspection during routine service may also reveal cracked, brittle, or worn impeller vanes.

Q: How often should I replace the water pump impeller?

A: As a general rule for preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1-2 years or after every 100-200 hours of operation. Service intervals should be shorter if the engine is primarily used in saltwater or in water with high levels of sand or silt.

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: 97467253060

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Kayla
Cuba, US
★★★★★ 4
He loved it
Is it durable? Not at all. Did he love it? While it lasted. Our dog is a monster chewer with toys so I go into every purchase knowing we might get 8 hours out of a toy if we're lucky, depending on visible durability. We don't even buy stuffies anymore because it's just not smart. He loved the squeak while it lasted, it's large so we never have to worry about him choking on it while running/being dumb. If you have a dog that will eat pieces of things as they destroy toys, this is not the toy for them. Ours plucks it apart piece by piece, but leaves the bits near one of us (LUCKILY!). If he didn't, we'd never buy this again. The missing star is just for lack of durability. Even for a rubber toy it felt like it didn't last very long.
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Reviewed in the United States on December 12, 2025
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Carol
Grantham, US
★★★★★ 5
I highly recommend and my dog loves it
I have a 80 pound bulldog who destroys everything he gets his mouth on. He loves this toy. He has not been able to destroy it. Not even a bite mark. He has to have this with him at all times (including during zoomies). I highly recommend it
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Reviewed in the United States on May 6, 2026
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Amazon Customer
Houston, US
★★★★★ 5
Great
My dog loved it and it’s durable!
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Reviewed in the United States on May 25, 2026
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Doc Vincent
Charlottesville, US
★★★★★ 3
Reed review don’t really recommend
Did not last very long with my larger dog. And honesty it was destroyed in about 15 minutes completely, and when my dog was tearing it apart, the chunks were large enough for my dog to choke on, so I would highly recommend watching your dog with this toy if they decide to chew it and tear it apart, so they don’t choke so this could be a possibly dangerous toy.
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Reviewed in the United States on April 13, 2026
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George
Cuba, US
★★★★★ 5
Best fetch toy for aggressive chewers.
Great toy to play fetch. I have aggressive chewer, and this works wonderful. Not heavy, and is soft, not like hard plastic. My dog loves them, (I bought 2). The bright color is easy to find, when you dog misplaces it. The price was very good, and well worth it. I recommend this toy, especially for retrieving dogs.
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Reviewed in the United States on April 25, 2026

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