SKU: 27895473819

Water Pump Impeller Repair Kit – Fits Yamaha 40-60 HP Outboards (Replaces 63D-W0078-01-00)

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Description

Water Pump Impeller Repair Kit – Fits Yamaha 40-60 HP Outboards (Replaces 63D-W0078-01-00)Water Pump Impeller Repair Kit Fits Yamaha 40 60 HP Outboards (Replaces 63D W0078 01 00) This comprehensive water pump impeller repair kit is designed for Yamaha 40 50 HP 2 Stroke (19952009) and 40 60 HP 4 Stroke (19952009) outboard motors. It contains all necessary components for a complete and reliable water pump service. It serves as a direct aftermarket replacement for Yamaha part numbers 63D W0078 01 00, 63D W0078 00 00, and 63D W0078 0A 00, as

Water Pump Impeller Repair Kit – Fits Yamaha 40-60 HP Outboards (Replaces 63D-W0078-01-00)

This comprehensive water pump impeller repair kit is designed for Yamaha 40-50 HP 2-Stroke (1995–2009) and 40-60 HP 4-Stroke (1995–2009) outboard motors. It contains all necessary components for a complete and reliable water pump service.

It serves as a direct aftermarket replacement for Yamaha part numbers 63D-W0078-01-00, 63D-W0078-00-00, and 63D-W0078-0A-00, as well as aftermarket equivalents Sierra 18-3434 and GLM 12276.

  • Provides a direct replacement solution for a complete rebuild.
  • Includes a high-performance neoprene impeller for efficient cooling.
  • Kit components are built to meet or exceed OEM specifications.

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-W0078-00-00
Yamaha 63D-W0078-0A-00
Sierra 18-3434
GLM 12276

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.
Yamaha Standard 40 2-Stroke 1995–2005 63D-W0078-01-00
Yamaha C40 40 2-Stroke 1997–2003 63D-W0078-01-00
Yamaha P40 40 2-Stroke 1998 63D-W0078-01-00
Yamaha Standard 50 2-Stroke 1998–2009 63D-W0078-01-00
Yamaha C50 50 2-Stroke 1998–2001 63D-W0078-01-00
Yamaha P50 50 2-Stroke 1995–1996 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 F60 60 4-Stroke 2002–2009 63D-W0078-01-00

Technical Specifications

Specification Value
Product Type Water Pump Impeller Repair Kit
Installation Direct OEM Replacement
Housing Material Metal alloy and neoprene rubber
Housing Color Black

Package Contents

  • 1 x Neoprene Impeller (6H3-44352-00-00)
  • 1 x Cartridge Outer Plate (63D-44323-00-00)
  • 1 x Cartridge Insert/Cup (63D-44322-00-00)
  • 1 x Water Pump Gasket (63D-44316-00-00)
  • 1 x Woodruff Key (90280-03024-00)
  • 1 x O-Ring (93210-59MG7-00)
  • 1 x Water Pump Housing Cover (63D-44312-00-00)
  • 1 x Water Seal Damper (663-44366-00-00)
  • 1 x Installation Bolt With Washer (90119-08M15-00)

Installation Guide

  1. Disconnect the battery and shift linkage.
  2. Remove the lower unit from the outboard motor.
  3. Unbolt and remove the existing water pump housing.
  4. Remove the old impeller, plate, and gaskets, noting their orientation.
  5. Clean all mating surfaces thoroughly.
  6. Install the new gasket, wear plate, and impeller cup.
  7. Insert the new Woodruff key and slide the new impeller onto the driveshaft.
  8. Install the new housing and O-ring, tightening bolts to the manufacturer's torque specifications.
  9. Reassemble the lower unit and reconnect all linkages.
  10. Test the engine in water to verify proper cooling system operation.

Troubleshooting & FAQ

Q: How can I be sure this kit will fit my Yamaha engine?

A: The best way to ensure compatibility is to verify your engine's model and year against the "Compatible Engine Models" table. Additionally, you can cross-reference your existing part number with those listed in the "Part Number Cross-Reference" section.

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

A: Common signs include the engine overheating at low speeds, a weak or non-existent "telltale" water stream, or a dry, cracked, or deformed old impeller upon inspection.

Q: How often should the impeller be replaced?

A: As a general maintenance guideline, we recommend replacing the impeller every 1 to 2 years or every 100-200 hours of operation, depending on usage conditions (e.g., saltwater vs. freshwater).

Q: Is this an OEM part?

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: 27895473819

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J. saroukhan
Massapequa, US
★★★★★ 5
Well made , gym quality
Style: 10 Pound, Pair
Color is nice and bright . The weights grips are good they do not slip . Prices reflect quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
K
Verified Purchase
Kim Wood
Charlottesville, US
★★★★★ 5
Good purchase
Style: 3 Pound, Pair
These are just the right weight for me to start gaining muscle back in my arms, after a large weight loss. They are of good quality, they are covered in a nice rubber like coating that is soft to the touch. They are small enough that i can take them with me when I travel. My dog has got hold of them a couple times and played with them, and they held up just fine without any damage.
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Reviewed in the United States on April 28, 2026
K
Verified Purchase
Ky Mogg
Port Orchard, US
★★★★★ 5
Solid, grippy, and they don’t roll away!
Style: 10 Pound, Pair
I bought these because I’m finally trying to build a consistent home workout routine and didn't want to drop a fortune on name-brand weights. I’ve been using this 10lb pair for about a month now for everything from overhead presses to lunges, and honestly, they’re exactly what I was looking for. The Pros: • That Neoprene Grip: The coating is fantastic. Even when my hands get pretty sweaty halfway through a workout, I don’t feel like I’m going to drop them. It’s a much "softer" feel than cold metal or hard plastic. • The Hex Shape: This is a small detail that makes a huge difference. Since the ends are hexagonal, they don't roll across the floor when I set them down between sets. They also stay put if I’m using them for "renegade rows" or floor work. • Compact Size: They aren’t bulky. I can easily shove them under my bed or in the corner of the closet when I’m done. • No Weird Odor: I was worried they might smell like a tire factory (which happens with some rubber-coated weights), but these had almost no scent right out of the box. The Cons: • Handle Diameter: The handles are a little on the thicker side. I have medium-sized hands and it’s fine, but if you have very small hands, they might feel a bit chunky to wrap your fingers all the way around. • Color Scuffs: The navy blue looks great, but if you clank them together or drop them on concrete, the coating can scuff or show dust pretty easily. The Verdict: If you just need a reliable set of weights for HIIT, Pilates, or general strength training, these are a no-brainer. You're basically getting gym-quality equipment for a fraction of the price. I’ll probably be back for the 15lb set in a few months!
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Reviewed in the United States on January 27, 2026
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Verified Purchase
Matt
West Palm Beach, US
★★★★★ 5
Simple, Comfortable, and Exactly What You Expect
Style: Rack with 3 Pairs (5, 10, and 15 Pound)
These are pretty much exactly what you want from a set of dumbbells — simple, functional, and no nonsense. The neoprene coating gives them a comfortable grip and keeps them from feeling slick in your hands, especially during longer workouts or if your hands get sweaty. The coating also helps keep them from banging up floors or making as much noise compared to bare metal weights, which is nice if you’re working out at home. Weight accuracy seems fine for general fitness use, and they’ve worked great for things like accessory movements, shoulder work, lighter presses, rehab-style exercises, and general muscle toning. The shape also helps keep them from rolling around everywhere when set down. They’re not fancy, and they’re not trying to be — they’re just dependable dumbbells that do what they’re supposed to do at a fair price. If you want straightforward hand weights for home workouts without overthinking it, these are a solid buy.
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Reviewed in the United States on May 26, 2026
C
Verified Purchase
ChaCha
Lexington, US
★★★★★ 5
Reliable, Comfortable Dumbbells I Actually Use Every Day
Style: 12 Pound, Pair, Style: 12 Pound, Pair
I’ve been using the Amazon Basics Neoprene Dumbbell Hand Weights daily, and they’ve honestly been perfect for my routine. Whether I’m doing a quick morning workout or adding resistance to a longer session, these have held up really well. The neoprene coating makes a big difference—it provides a comfortable, non-slip grip, even during longer workouts or when my hands get a little sweaty. They’re also easy to clean and don’t have that strong rubber smell some weights can have. I really appreciate the hex shape too. They stay put when I set them down (no rolling across the floor), which makes switching between exercises quick and frustration-free. The weight feels evenly distributed and well-balanced, so movements feel controlled and smooth. Overall, these are simple, no-frills dumbbells that just work. If you’re looking for reliable hand weights for everyday use—whether you’re a beginner or just need something dependable for home workouts—these are a great choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026

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