SKU: 50829926623

47-22748 Outboard Rubber Impeller with Key/Pin for Mercury Mariner 2-S 3.5 3.9 5 6HP | JLM Marine

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Description

47-22748 Outboard Rubber Impeller with Key/Pin for Mercury Mariner 2-S 3.5 3.9 5 6HP | JLM Marine47 22748 Outboard Rubber Impeller with Key Pin for Mercury Mariner 2 Stroke 3. 5 3. 9 5 6HP JLM Marine This high quality aftermarket rubber impeller is engineered to fit Mercury Mariner 2 stroke outboard engines rated at 3. 5, 3. 9, 5, and 6 HP. Designed to deliver reliable water pump performance, this impeller ensures efficient cooling to protect your engine from overheating and extends service life. A direct replacement for OEM part number 47 22748,

47-22748 Outboard Rubber Impeller with Key/Pin for Mercury Mariner 2-Stroke 3.5 3.9 5 6HP | JLM Marine

This high-quality aftermarket rubber impeller is engineered to fit Mercury Mariner 2-stroke outboard engines rated at 3.5, 3.9, 5, and 6 HP. Designed to deliver reliable water pump performance, this impeller ensures efficient cooling to protect your engine from overheating and extends service life.

A direct replacement for OEM part number 47-22748, this impeller meets or exceeds factory specifications for durability and fit. It is an essential maintenance component for keeping your outboard running smoothly season after season.

  • Complete with key/pin for straightforward installation
  • Precision-molded rubber construction for consistent water flow
  • Compatible with Mercury Mariner 2-stroke small outboards

Part Number Cross-Reference

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

Brand Part Number
Mercury Mariner 47-22748

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
Mercury Mariner Outboard 3.5, 3.9, 5, 6 2-Stroke

Technical Specifications

Specification Value
Part Type Outboard Rubber Impeller
Material Rubber
Includes Key/Pin
OEM Part Number 47-22748
Application Water Pump

Package Contents

  • 1 × Outboard Rubber Impeller
  • 1 × Key/Pin

Installation Guide

  1. Disconnect the fuel line and ensure the engine is off and cool before beginning work.
  2. Remove the lower unit from the outboard motor by loosening the mounting bolts. Refer to your engine manual for specific procedures.
  3. Locate and remove the water pump housing cover by unscrewing the fasteners. Keep all hardware organized for reassembly.
  4. Extract the old impeller carefully, noting the direction of the blade curvature for proper installation of the new part.
  5. Clean the pump housing thoroughly to remove any debris, old gasket material, or buildup that could impair the new impeller's performance.
  6. Lubricate the new impeller blades with a water-resistant marine grease to ease installation and prevent damage during initial startup.
  7. Insert the key/pin into the impeller hub slot to ensure proper alignment with the drive shaft.
  8. Install the new impeller into the housing, making sure the blades curve in the correct rotational direction and the key/pin is properly seated.
  9. Reinstall the water pump housing cover and gasket, tightening fasteners evenly to the manufacturer's torque specifications.
  10. Reattach the lower unit to the motor, ensuring all mounting bolts are secure and properly torqued.
  11. Reconnect the fuel line and run the engine briefly in a test tank or on-water to confirm proper water flow from the tell-tale indicator.
  12. Inspect for leaks around the pump housing and verify that cooling water is circulating correctly before returning to normal operation.

Troubleshooting & FAQ

How do I confirm this impeller fits my Mercury Mariner outboard?
Check the compatible engine models table above and cross-reference with your engine's rated horsepower and stroke type. You can also verify using your original OEM part number (47-22748) or consult the Mercury serial number guide and parts diagrams linked in the compatibility section.

How often should I replace the water pump impeller?
Marine experts recommend replacing the impeller every 2–3 years or every 200–300 hours of operation, whichever comes first. If you notice reduced water flow from the tell-tale, overheating, or visible blade damage, replace it immediately regardless of service interval.

What are the signs that my impeller is failing?
Common symptoms include weak or no water discharge from the tell-tale indicator, engine overheating, steam from the powerhead, or reduced performance. Inspect the impeller annually and replace if blades are cracked, torn, or show significant wear.

Why is the key/pin included with this impeller?
The key (or pin) ensures the impeller is properly indexed and driven by the water pump shaft. It prevents slippage and guarantees correct rotational alignment. Always install the key/pin as shown in your service manual to avoid pump failure.

Can I install this impeller myself or do I need a mechanic?
If you have basic mechanical skills and the proper tools, you can replace the impeller following the installation steps provided. However, professional installation is recommended to ensure correct torque settings, gasket sealing, and alignment, especially if you are unfamiliar with lower unit service.

What is the difference between OEM and aftermarket impellers?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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: 50829926623

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4.2 ★★★★★
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K
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KK
New York, US
★★★★★ 1
Poor product
Blade was not sharp enough to remove hair. The raggedy blade scratched and but my face. Very disappointed. My granddaughter had a different brand of this item and it was so smooth removing the hair.
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Reviewed in the United States on January 24, 2026
B
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Brian Johnson | Philosopher's Notes
Boise, US
★★★★★ 5
I absolutely loved this book.
Format: Paperback
“This book is about creativity, based on histories of contemporary people who know about it firsthand. It starts with a description of what creativity is, it reviews the way creative people work and live, and it ends with ideas about how to make your life more like that of the creative exemplars I have studied. There are no simple solutions in these pages and a few unfamiliar ideas. The real story of creativity is more difficult and strange than many overly optimistic accounts have claimed. For one thing, as I will try to show, an idea or product that deserves the label ‘creative’ arises from the synergy of many sources and not only from the mind of a single person. It is easier to enhance creativity by changing conditions in the environment than by trying to make people think more creatively. And a genuinely creative accomplishment is almost never the result of a sudden insight, a lightbulb flashing on in the dark, but comes after years of hard work.” ~ Mihaly Csikszentmihalyi from Creativity Creativity with a capital C—the type of Creativity that changes the world. How can we go about cultivating it in our lives? That’s what this book is all about. Our guide is Mihaly Csikszentmihalyi—one of the founders of the positive psychology movement. Csikszentmihalyi (pronounced “cheeks sent me high”) is a professor at Claremont Graduate University and the former Chair of the Department of Psychology at the University of Chicago who wrote the classic book Flow: The Psychology of Optimal Experience . This book features the wisdom gained from over three decades of research along with over one hundred interviews with extraordinary people—from scientists and business leaders to artists and poets. Warning: Although deeply insightful, it’s not an easy read. If you’re looking to understand creativity at a deeper level via one of the world’s leading (and legendary) psychologists then I think you’ll enjoy it as much as I did. Here are some of my favorite Big Ideas: 1. What is Creativity - Domain + field + person. 2. Attention - + Being kind weird 3. Complexity - + Resolving dischotomies. 4. Rhythms - Your ideal days? 5. Creativity + Flow - The 9 elements Well, there we go. That’s a super quick look at this great book. Time to get our flow on as we tap into our Creativity and optimize + actualize! More goodness— including PhilosophersNotes on 300+ books in our ​*OPTIMIZE*​ membership program. Find out more at brianjohnson . me.
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Reviewed in the United States on May 10, 2016
J
Verified Purchase
Julie S.
Natrona Heights, US
★★★★★ 5
5 Stars – A Must-Read for Anyone Interested in Creativity!
Format: Paperback
Creativity: The Psychology of Discovery and Invention* by Mihaly Csikszentmihalyi is a brilliant exploration of the inner workings of creativity and the human mind. Whether you’re an artist, entrepreneur, or simply someone interested in understanding how creative breakthroughs happen, this book provides a fascinating blend of psychology, real-world examples, and deep insights. What sets this book apart is its comprehensive approach to creativity, going beyond the idea of it being a mysterious or innate trait. Csikszentmihalyi breaks down the creative process into digestible parts, showing how environment, discipline, curiosity, and flow all play a crucial role in fostering creative discovery. The interviews with a wide variety of highly creative people—including scientists, artists, and business leaders—add incredible depth and context to his theories. One of my favorite takeaways is how Csikszentmihalyi emphasizes the balance between freedom and structure in creative work, and how finding the "flow" state can lead to moments of true innovation. The book not only helped me better understand my own creative process but also offered practical advice for cultivating creativity in everyday life. This is an insightful, inspiring read for anyone who wants to dive deeper into the psychology behind creative genius. Highly recommend!
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Reviewed in the United States on September 10, 2024
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M. Edwards
Battle Creek, US
★★★★★ 4
Personal Creativity does not equal Domain Transformation
This was a good if not a great book. Its greatest strength lies in the thesis introduced early on and supported throughout that the kind of creativity that leaves a trace in the cultural matrix rests not in the personal creativity of the individual, but in what Csikszentmihalyi tags the "systems approach " to creativity. To have any effect, a creative idea must be couched in terms that are understandable to others, pass muster with the experts in the field (i.e. the gatekeepers to the domain), and be included within the cultural domain (the set of symbolic rules or procedures) to which it belongs. In this systems view, the definition of a creative person is someone whose thoughts or actions change a domain or establish a new domain (pp. 27-28). This is no easy task, especially since he or she needs to learn the existing domain or domains first, and almost always necessitates being in the right place at the right time (e.g. studying quantum physics at the beginning of the 20th century or women seeking academic opportunities when WWII broke out). Having established this in the first 30 pages, if you didn't read the remaining 350 you wouldn't miss much. But I still enjoyed reading the stories and thoughts of selected individuals whom the author deemed as "creative" according to the definition above (However, I disagreed with the selection of a few of these and would have chosen at least one more person of faith in addition to the Quaker who was briefly highlighted. Also on the issue of faith, I found the author's grouping on page 371 of studying the bible with addictive behaviors such as cruising the internet and betting on horse races to be rather laughable!). Some additional personal nuggets I gleaned from this book include the following: 1. Those who persevere and succeed must be creative not only in their manipulation of symbols but maybe even more in shaping a career and a future for themselves that will enable them to survive while continuing to explore the strange universe in which they live (p. 199). 2. When seeking to allow your mind to make new connections in a beautiful setting, just sitting and watching is fine, but taking a leisurely walk seems to be even better. The shaping of one's personal space is also important. The Greek philosophers settled on the peripatetic method, preferring to discuss ideas walking up and down in the courtyards of the academy. When we participate in this kind of "semiautomatic activity" that uses a certain amount of attention, we allow the rest of it to be free to make connections among ideas, often from different domains, well below the threshold of conscious intentionality. "Devoting full attention to a problem is not the best recipe for having creative thoughts. "(p. 138) 3. Both creativity and innovation on the one hand and conservation and traditionalism on the other are both equally important. "Neither uncritical acceptance nor wholesale dismissal of human creativity will lead us far. " (p. 322) The final section deals with how to enhance personal creativity. Some of these ideas were helpful (e.g. to seek to be surprised and to seek to surprise another person at least once every day, to seek to look at problems from multiple perspectives instead of assuming you see the issue clearly from one perspective, etc.) but others just seem to be taking up space on the page. I'm afraid the phraseology of how to use psychic energy more effectively on page 356 and a few other places lost my interest almost completely.
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Reviewed in the United States on November 15, 2010
P
Verified Purchase
pepe
Chelsea, US
★★★★★ 5
interesting analysis of what 'being creative' really means
This easy-to-read absorbing book is based on lengthy interviews with 91 creative individuals ranging from Nobel prize winners to artists to CEOs. Csikszentmihalyi starts by debunking the myth of 'the lone genius having a brilliant idea as if by magic' and defines three necessary ingredients for creativity ('with a capital "C"') - domain, field, and individual. Creativity must take place within a recognised domain (such as physics, painting and so forth); be recognised by experts in that domain (the field, although this may not happen in the individual's lifetime, eg, Van Gogh); and of course come from an individual, although he also adds the painstaking work that precedes and insight, the reality that all creativity builds on what has gone before, and the social elements of the creative process. The book also offers supporting evidence from the lives of the 91 interviewed, which also provides interesting insights into their lives. In many ways, this book is a biography of the creative individual. Also contains a chapter with quite practical guidance on how to live more creatively. Prescient advice for a book published in 1996 given the increasing profile creativity is getting in business and public life. HIghly recommended, one of the most interesting learning experiences i have had in a long while!
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Reviewed in the United States on February 5, 2013

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