SKU: 19008157024

Water Pump Impeller Kit – Fits Mercury/Mariner 75-115HP 4-Stroke (Replaces 817275A5, 46-817275Q05)

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Description

Water Pump Impeller Kit – Fits Mercury/Mariner 75-115HP 4-Stroke (Replaces 817275A5, 46-817275Q05)Water Pump Impeller Kit Fits Mercury Mariner 75 115HP 4 Stroke (Replaces 817275A5, 46 817275Q05) This water pump impeller repair kit is designed for Mercury Mariner 4 stroke outboards from 75HP to 115HP (including 1596cc, 1731cc, 1741cc, and 2. 1L models) manufactured from 2004 to the present. It serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring comprehensive compatibility for routine maintenance or repair.

Water Pump Impeller Kit – Fits Mercury/Mariner 75-115HP 4-Stroke (Replaces 817275A5, 46-817275Q05)

This water pump impeller repair kit is designed for Mercury/Mariner 4-stroke outboards from 75HP to 115HP (including 1596cc, 1731cc, 1741cc, and 2.1L models) manufactured from 2004 to the present.

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

  • Complete Kit: Includes all necessary components for a full water pump service: impeller, housing, face plate, gaskets, seals, and hardware.
  • Durable Materials: Constructed from a robust metal alloy and neoprene rubber for reliable performance and longevity in marine environments.
  • Direct Replacement: Engineered to meet or exceed OEM specifications for a precise fit and straightforward installation.

Part Number Cross-Reference

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

Brand Part Number
Mercury 46-817275A5
Mercury 46-817275Q05
Mercury 817275K05
Mercury 817275A10
Sierra 18-3147
Sierra 18-3406

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.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury FourStroke 75 4-Stroke 2004–2015 817275A5 1596cc/1731cc engines
Mercury FourStroke 80 4-Stroke 2004–2015 817275A5 1596cc/1731cc engines
Mercury FourStroke 90 4-Stroke 2004–2015 817275A5 1596cc/1731cc engines
Mercury FourStroke 100 4-Stroke 2004–2015 817275A5 1596cc/1731cc engines
Mercury FourStroke 115 4-Stroke 2004–2015 817275A5 1741cc/1731cc engines
Mercury FourStroke 75/80 4-Stroke 2015+ 817275A10 2.1L engines
Mercury FourStroke 90/100 4-Stroke 2015+ 817275A10 2.1L engines
Mercury FourStroke 115 4-Stroke 2015+ 817275A10 2.1L engines

Technical Specifications

Specification Value
Product Type Water Pump Impeller Repair Kit
Installation Direct OEM replacement
Housing Material Metal alloy and neoprene rubber
Other Technical Attributes Complete water pump kit with impeller, housing, face plate, gaskets, and hardware

Package Contents

  • 1 x Water Pump Impeller (47-43026T2)
  • 1 x Housing
  • 1 x Face Plate
  • 1 x Gasket
  • 1 x Grommets
  • 1 x Seal
  • 1 x Cover
  • 1 x Washer
  • 1 x O-ring
  • 1 x Impeller Key

Installation Guide

  1. Safety First: Disconnect the engine's battery before starting any work.
  2. Access the Lower Unit: Drain the gearcase oil and remove the lower unit from the outboard motor.
  3. Remove Old Pump: Unscrew the bolts securing the water pump housing and carefully lift it off the driveshaft.
  4. Inspect and Clean: Remove the old impeller, gaskets, wear plate, and key. Thoroughly clean all mating surfaces, removing any old gasket material or corrosion.
  5. Install New Components: Place the new gasket and face plate onto the lower unit. Install the new impeller key into the driveshaft.
  6. Install New Impeller: Slide the new impeller onto the driveshaft, turning the shaft clockwise to help seat the impeller vanes correctly within the housing.
  7. Secure Housing: Apply a light coat of marine grease to the inside of the new housing, then press it down over the impeller while aligning the bolt holes. Securely tighten the bolts to the manufacturer's specified torque.
  8. Reassemble: Reinstall the lower unit, refill the gearcase with fresh oil, and reconnect the battery.
  9. Test Operation: Start the engine using a flush-and-test device to ensure water is pumping correctly before heading out on the water.

Troubleshooting & FAQ

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

A: The best way is to check your engine's model, year, and serial number against the "Compatible Engine Models" table above. For Mercury owners, our Mercury Serial Number Guide can help you locate this information on your motor.

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

A: Common symptoms include the engine overheating at idle or low speeds, a weak or non-existent stream of water from the "telltale" outlet, or a high temperature alarm. Visible signs on the old impeller include cracked, brittle, or missing vanes.

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

A: As a general rule, it is recommended to inspect and replace the impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can vary depending on usage conditions (e.g., saltwater vs. freshwater).

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: 19008157024

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Amazon Customer
Lake Worth, US
★★★★★ 5
Perfect if you need extra plugs
Size: 6 Outlets, Style: Desk Socket - White
Perfect for what I needed.
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Reviewed in the United States on March 4, 2026
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Rosemarie Amonette
Alexandria, US
★★★★★ 5
It's works great hooks to the table perfectly
Color: Black, Color: Black
This is working out perfect all my cords we're on the floor I have this hooked to my bed table was constantly rolling over all the cords this helped get them off the floor
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Reviewed in the United States on May 4, 2026
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April Slade
Lake Worth, US
★★★★★ 5
Great product
Color: White
This was great purchase for young adult who always has phone on bed.
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Reviewed in the United States on May 2, 2026
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Kue Yang
Lake Worth, US
★★★★★ 5
Great
Color: White
Exactly what I need and was looking for. Great for my work space.
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Reviewed in the United States on April 14, 2026
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Lito
Lexington, US
★★★★★ 4
Compact and Very Useful
Color: White
Nice compact version for smaller setups. Works well and the USB-C port is a great addition. Only wish the cord was slightly longer, but overall it’s very useful.
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Reviewed in the United States on March 28, 2026

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