Water Pump Impeller Kit – Fits Mercury/Mariner/Honda 40-300 HP (Replaces 47-43026Q06)
SKU: 69990204265

Water Pump Impeller Kit – Fits Mercury/Mariner/Honda 40-300 HP (Replaces 47-43026Q06)

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Description

Water Pump Impeller Kit – Fits Mercury/Mariner/Honda 40-300 HP (Replaces 47-43026Q06)Water Pump Impeller Kit Fits Mercury Mariner Honda 40 300 HP (Replaces 47 43026Q06) This water pump impeller service kit provides a reliable solution for maintaining the cooling system on a wide range of Mercury, Mariner, and Honda outboard engines, as well as Mercury Alpha One Gen 2 sterndrives. It is designed to meet or exceed OEM specifications for fit and performance, ensuring proper water circulation to prevent engine overheating. Engineered as a

Water Pump Impeller Kit – Fits Mercury/Mariner/Honda 40-300 HP (Replaces 47-43026Q06)

This water pump impeller service kit provides a reliable solution for maintaining the cooling system on a wide range of Mercury, Mariner, and Honda outboard engines, as well as Mercury Alpha One Gen 2 sterndrives. It is designed to meet or exceed OEM specifications for fit and performance, ensuring proper water circulation to prevent engine overheating.

Engineered as a direct replacement for multiple part numbers, this kit simplifies sourcing and installation. It is suitable for various 2-stroke and 4-stroke models from 40 HP up to 300 HP.

  • Direct Replacement: Installs using existing hardware and connections with no modifications required.
  • Complete Service Kit: Includes the impeller, wear plate, gaskets, seals, and o-rings necessary for a full service.
  • Durable Construction: Features a 6-blade impeller designed for efficient water flow and long service life.

Part Number Cross-Reference

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

Brand Part Number
Mercury/Mariner 47-43026Q06
Mercury/Mariner 47-43026K06
Sierra 18-3214
GLM 12043
Honda 19021-ZW1-003
Honda 06192-ZW1-305

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Confirm your engine model/year in the table below.

Mercury/Mariner Outboard Models

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury 75-115 75-115 4-Stroke Serial number 0A996142 and above 47-43026Q06
Mercury 70-90 70-90 2-Stroke Serial number 0A996142 and above 47-43026Q06
Mercury 100-125 100-125 2-Stroke 4 cylinder models having pump cover screws without insulators 47-43026Q06
Mercury V-200/V-225/V-250 200-250 2-Stroke 3.0L motors 47-43026Q06
Mercury F40-F60 40-60 4-Stroke Bigfoot/Command Thrust models 47-43026Q06
Mercury 60 Bigfoot 60 2-Stroke Serial number 0D000750 and above 47-43026Q06
Mercury Alpha One Gen 2 N/A N/A Serial number OD469859 and up (1991 and newer) 47-43026Q06 Sterndrive application

Honda Outboard Models

Brand Model Rated HP Stroke Years OEM Part No.
Honda BF75AW, BF75AT 75 4-Stroke 1996-1998 19021-ZW1-003
Honda BF90AW, BF90AT 90 4-Stroke 1996-1998 19021-ZW1-003/06192-ZW1-305

Technical Specifications

Specification Value
Product Type Water Pump Impeller Kit
Installation Direct replacement
Dimensions Impeller diameter: 88 mm, Width: 32 mm, Shaft size: 22 mm
Fitting Type Keyway
Number of Blades 6

Package Contents

  • 1 x Water Pump Impeller (47-43026T2)
  • 1 x Coupling Assembly (816597A1) - For 1991 and up models, S/N OD469859 and up
  • 1 x Wear Plate (817276-1)
  • 1 x Gasket (27-43033-1)
  • 1 x O-Ring (25-21836)
  • 1 x Seal (26-816575A2)
  • 1 x Gasket (27-817277)

Installation Guide

  1. Safety First: Disconnect the negative battery cable before starting work.
  2. Access the Pump: Remove the lower unit (gearcase) from the outboard motor.
  3. Disassemble: Carefully unbolt and remove the old water pump housing assembly. Note the order of the components.
  4. Remove Old Parts: Take out the old impeller, keyway, wear plate, gaskets, and seals.
  5. Clean Surfaces: Thoroughly clean all mating surfaces, removing any old gasket material or corrosion.
  6. Install New Components: Place the new gasket and wear plate onto the gearcase. Insert the new keyway into the driveshaft.
  7. Install Impeller: Slide the new impeller onto the driveshaft, turning it clockwise to bend the vanes correctly.
  8. Reassemble Housing: Install the new seal in the housing, place the housing over the impeller, and fasten it with the bolts.
  9. Torque Bolts: Tighten the housing bolts to the manufacturer's recommended torque specifications.
  10. Reinstall Lower Unit: Reattach the lower unit to the outboard motor.
  11. Test Operation: Reconnect the battery. Start the engine using a water supply (flushing muffs) and check for a steady water stream from the tell-tale outlet.

Troubleshooting & FAQ

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

A: The most reliable method is to check your engine's model, horsepower, and serial number against the detailed compatibility tables on this page. This kit is a direct replacement for several OEM part numbers, including Mercury/Mariner 47-43026Q06 and Honda 19021-ZW1-003. For Mercury owners, our linked serial number guide can help you verify your model.

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

A: The most common symptom of a bad impeller is engine overheating, often indicated by a warning alarm or gauge. Other signs include a weak or no water stream from the engine's "tell-tale" outlet, or an impeller that appears brittle, cracked, or has melted vanes upon inspection.

Q: How often should the impeller be replaced?

A: As a general maintenance rule, it is recommended to inspect the impeller annually and replace it every 1 to 2 years, or after every 100-200 hours of operation. Replacement frequency may depend on usage conditions, such as operating in saltwater or sandy/silty water, which can accelerate wear.

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: 69990204265

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Sophia Rose
San Leandro, US
★★★★★ 4
Fun Seeing Where it All Begins for the Fantastic Amateur Detecting Duo
Format: Audiobook
I started with book three in this series, progressed forward, and finally took the opportunity to go back and get the first book in the series. The whimsical, cozy mystery paired with historical Edwardian setting was light and whimsical. Actually, when I started listening, I realized that the first book introduced Lady Hardcastle and her ladies' maid, Florence Armstrong along with their new home and the other regular characters, in such a way that it didn't feel like the first book so much as the first of the stories that had been recorded. There are hints of their unusual, dangerous work abroad and no big explanation why the pair happened to be set upon 'a quiet life in the country' or why Lady Hardcastle and Florence have a relationship that is nearly family rather than an employer and servant from separate classes. The author trickles out the details and the reader/listener must catch them and piece them together as they go. Because I had experienced later books, those pieces stuck out easily to me. The meeting with Inspector Sunderland and the local villagers and neighborhood was fun. There are two murder mysteries that have interesting crossover people and facts. One seems to involve a dead man from the village cricket team whose death was meant to appear like a suicide and then later, the death of a rag-time band trumpeteer that played at the engagement party of the local squire's daughter. A theft is tossed in for good measure. I figured out one of the murders and part of the theft and the second murder, but the ultimate solution took me by surprise. Loved seeing the intrepid Flo able to get in some of her martial arts ability and spend time trailing along as they teased out the solution along side Inspector Sunderland. Elizabeth Knowelden is an absolute gem of a narrator and the voice of this series for me. She laid out the Edwardian country village world, the variety of genders and accents, and kept the pace and tone for this series just right. All in all, I thought this first entry was as fabulous as the later books and do not hesitate to put it out there as a good bet for historical cozy mystery lovers.
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Reviewed in the United States on March 22, 2019
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Leond
Draper, US
★★★★★ 5
Must read!!!!
Format: Paperback, Format: Paperback
Surprise plot intertwined with story of loss, grief, family and sibling relationships. The book starts off normally and twists and turns. Could not put book down. Great writing and plot development. Can’t wait to read more by this author.
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Reviewed in the United States on May 25, 2026
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Josh Mauthe
Waukegan, US
★★★★★ 4
A story about what's left behind after death, both emotionally & spiritually - oh, and evil puppets
Format: Kindle
It takes a bit for Grady Hendrix's How to Sell a Haunted House to get to the "haunted" part of that title, but that's okay, really; what Hendrix is interested in here, as much as anything, is haunting in terms of the literal things left behind by death - the traumas that are left for those who survive, the guilt, the shame, the baggage, and all of the other things left behind by those who went before us. And, in the case of Louise and Mark Joyner, puppets. Lots and lots and lots of puppets. Oh, and one of them might be alive and malevolent, turning all of that metaphorical trauma into a very real presence (and, without getting into spoiler territory, all without losing that symbolic weight) - and one that allows Hendrix to bring real horror into the story of an estranged pair of siblings forced back into contact in the weight of their parents' death, and the reckoning that they have to go through as they deal with painful memories and a nightmare puppet. The end result can feel a little cluttered at times (although, by the end, it turns out to be a lot more interconnected and structured than you might realize along the way), and it doesn't help that it features some very fraught family interactions that cross from "painful" to "infuriating" very quickly. But as ever with Hendrix, there's more heart and emotion here than you might expect, and while it's all handled in his usual slightly off-kilter and unique sensibility, it still knows how to deliver the goods both on a horror front and a character one. I'd put it among the weakest of Hendrix's efforts overall, but there's a caveat here, and it's that I don't think anything he's read has ever been anything less than entertaining and solid overall, so even a weaker entry? Still a good time and a good read.
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Reviewed in the United States on October 8, 2023
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Nick Roberts
Chelsea, US
★★★★★ 3
Exactly as advertised
Format: Hardcover
REVIEW: How to Sell a Haunted House by Grady Hendrix If you've enjoyed Grady Hendrix's previous books, you're probably going to like this one. It is Grady in typical form - witty, entertaining, slightly spooky, grounded characters who contrast over-the-top characters, and drenched in South Carolina charm. Now, if you're not the biggest Grady fan, I doubt this will be the book that converts you for the same reasons mentioned above. I tend to fall in the middle. I enjoy his storytelling abilities and scenarios enough to keep reading his books, but there's nothing horrific about them, nor any lingering effects. To me, they are entry-level horror, and that's perfectly fine. There's a huge market for that as his success reflects. This book doesn't try to be anything other than what it is, and I respect that. The story begins with Louise getting the news that her parents were killed in a car crash. She travels from California back to her hometown of Charleston, South Carolina where she reluctantly reunites with her cousins, aunt, and her brother, Mark. Louise and Mark resent one another, so they butt heads at every decision that needs to be made in light of the tragedy. Louise sees herself as the reasonable one and looks down on her brother as an embarrassment and a failure. While trying to come to terms with selling the house, the siblings soon realize that there's another presence in there with them, and it has something to do with their mom's homemade puppet collection. Overall, this book was enjoyable. There was nothing groundbreaking about it, and I got exactly what I paid for. Check it out if you're into spooky stories about complicated families and southern settings.
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Reviewed in the United States on January 27, 2023
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Allie James
Los Angeles, US
★★★★★ 5
Disturbing and Hilarious
Format: Paperback
4.5/5 I LOVED this book! The characters are frustrating, complicated, and loveable and hateable at the same time. It somehow walks the fine line of being hilarious and genuinely disturbing. For me, the entire puppet thing was hard to take seriously at first because, I mean, how much damage can a PUPPET do? But wow it soon took a dark turn and was truly scary! If you find Mark to be really aggravating at first, just hold on because it gets better. The character arcs in this book are awesome. Overall, I found this novel to have really unique events that I didn't see coming at all and was excited the whole time I was reading.
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Reviewed in the United States on January 13, 2026

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