SKU: 19008157024

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

Sale price$143.99 Regular price$159.99
Save 10%

Pay in installments of $40.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 5 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
Y
Verified Purchase
50 yr old-man
Alexandria, US
★★★★★ 5
No boards come with it.
Size: 42'' x 28'', Size: 42'' x 28''
It was simple to put together, though it did not come with instructions. I had to use pictures of the product as a reference when putting it together. Parts were oily, so you must use gloves or wipe them down. I bought the boards from Lowes, size for the boards were 28" x 40" and 9" x 40", and 3/4" thick. I had to buy 5/8" screws to screw the boards down. Overall, once it was all put together, the desk is very sturdy, simple and gave me options how to set up my computers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2024
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 3
1" fittings and decent quality
Size: 16'' x 7.87''
Difficult to tell from any description but these are 1" pipes and fittings. You can find this out if you look at product pictures and can see the 1 printed on a fitting or two that is it. I was trying to match existing pipes that were 3/4 inch so disappointed when they arrived. these are decorative as well. Not the same quality as actual black iron pipe you get at any home improvement store. Good enough for shelving and legs on furniture but I definitely would not stand on these or make a chair or stool that is meant to hold someone's weight. Fit and finish about what you would expect cheap and the flanges are threaded crooked like others have stated. Also when they state the sizes and lengths they do not take into account the fittings so everything will be longer slightly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
A
Verified Purchase
A New Level
Dallas, US
★★★★★ 5
Good price for what I needed
Size: 16'' x 43''
Perfect for the coffee table I was working on, adjust to the size I needed as I only used 2 middle pipes for a 36” table top. Good durable pipes. The down come slightly scratched up as they weren’t packaged in anything protective so I ended up spraying them with a matte black.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 28, 2025
M
Verified Purchase
Michelle bullard
Grantham, US
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2023
C
Verified Purchase
Charles Clerici
Battle Creek, US
★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2023

recommand products