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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Amy
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Reviewed in the United States on April 22, 2026
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DD
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★★★★★ 4
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Color: Beige, Size: 16, Color: Beige, Size: 16
I ordered this 5‑piece linen suit in size 16 in the beige color. The set includes the jacket, pants, dress shirt, bow tie, and a slip‑on tie. The outer fabric is a blend of 70% polyester, 25% linen, and 5% spandex, and the lining is 100% polyester. The material is lightweight, which works well for warm‑weather events, but the pants are noticeably thinner than the jacket. The jacket feels sturdier because of the full lining. The jacket has a peak lapel, flap pockets, and cuff buttons, and the stitching and seams are tight and even. I did notice a few loose threads, but the fabric itself was smooth with no tears or flaws. The pants have an adjustable waistband, which is helpful, but the length was too long and will need to be tailored. The overall cut of the suit seems designed for children on the thinner side. The shirt included in my set was a pleated style rather than a plain dress shirt. It wasn’t the style shown in the product photos, and I would have preferred a standard shirt that could be worn for various occasions rather than a very formal shirt. The tie is a pre‑tied slip‑on style with an elastic band. I would have preferred a traditional tie instead. The suit arrived in good condition with no damage, and the color was even throughout all pieces. The price is on the higher end for similar 5‑piece sets. I rated it 4 stars because the jacket is well made and the set includes all the expected pieces, but the thin pants, unexpected pleated shirt, and slip‑on tie kept it from being perfect.
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Reviewed in the United States on April 16, 2026
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Jacobson
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★★★★★ 5
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Color: Light Blue, Size: 10, Color: Light Blue, Size: 10
Got this suit set for my son and absolutely love it. It comes with everything he needs to look sharp, and I really appreciate that it includes both a tie and a bow tie so we can switch up the style depending on the occasion. The quality is impressive for the price — the fabric feels light and comfortable, and the whole outfit has a polished look without being stiff or uncomfortable. The fit was spot on, and the adjustable waistband is a huge help for getting it just right. My son looked great in it, and it’s definitely something he can wear for more than one event. The little details on the jacket and pants give it a classic, dressed‑up feel that works for weddings, holidays, or any special moment. Overall, it’s a stylish, practical set that makes getting him ready so much easier. Really happy with this purchase.
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Dallas, US
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Color: Light Blue, Size: 12, Color: Light Blue, Size: 12
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