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Description
Water Pump Impeller Kit – Fits Mercury/Mariner 3.9-9.8 HP (Replaces 47-89980T1)Water Pump Impeller Kit Fits Mercury Mariner 3. 9 9. 8 HP (Replaces 47 89980T1) This water pump impeller kit is designed for Mercury Mariner 2 stroke outboard engines from 3. 9 HP to 9. 8 HP, model years 19791986, specifically those requiring an impeller with a 0. 438" (11. 13 mm) inner diameter. It serves as a direct replacement for the original equipment, ensuring proper fit and function for cooling system maintenance. Engineered to meet OEM
Water Pump Impeller Kit – Fits Mercury/Mariner 3.9-9.8 HP (Replaces 47-89980T1)
This water pump impeller kit is designed for Mercury/Mariner 2-stroke outboard engines from 3.9 HP to 9.8 HP, model years 1979–1986, specifically those requiring an impeller with a 0.438" (11.13 mm) inner diameter. It serves as a direct replacement for the original equipment, ensuring proper fit and function for cooling system maintenance.
Engineered to meet OEM specifications, this kit provides a reliable solution for replacing worn or damaged water pump components, helping to prevent engine overheating and maintain performance. This is an aftermarket replacement part.
- Installation Method: Direct replacement
- Impeller Material: Durable neoprene rubber
- Key Components: Includes impeller, wear plate, sleeve, O-rings, and seal
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Mercury | 47-89980T1 |
| Mercury Quicksilver | 47-89980Q1 |
| Sierra | 18-3006 |
| GLM | 700-12271 |
| SEI | 96-260-03AK |
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/Mariner | 9.8 HP (Model 110) | 9.8 | 2-Stroke | 1979-1985 | 47-89980T1 | Made in USA: Serial Range 5206550 & Up |
| Mercury/Mariner | 7.5 HP | 7.5 | 2-Stroke | 1979-1986 | 47-89980T1 | Made in USA: Serial Range 5206550 & Up |
| Mercury/Mariner | 4.5 HP (1-Cyl.) | 4.5 | 2-Stroke | 1980-1985 | 47-89980T1 | Made in USA: Serial Range 5595532 & Up |
| Mercury/Mariner | 4 HP (1-Cyl.) | 4 | 2-Stroke | 1982-1986 | 47-89980T1 | Made in USA: Serial Range 5595532-0A809600 |
| Mercury/Mariner | 9.8 HP (Model 110) | 9.8 | 2-Stroke | 1979-1985 | 47-89980T1 | Made in AUS: Serial Range 8057545 & Up |
| Mercury/Mariner | 7.5 HP | 7.5 | 2-Stroke | 1979-1986 | 47-89980T1 | Made in AUS: Serial Range 8057545 & Up |
| Mercury/Mariner | 4.5 HP (1-Cyl.) | 4.5 | 2-Stroke | 1980-1985 | 47-89980T1 | Made in AUS: Serial Range 8068065 & Up |
| Mercury/Mariner | 4 HP (1-Cyl.) | 4 | 2-Stroke | 1982-1986 | 47-89980T1 | Made in AUS: Serial Range 8068065 & Up |
| Mercury/Mariner | 9.8 HP (Model 110) | 9.8 | 2-Stroke | 1979-1985 | 47-89980T1 | Made in BEL: Serial Range 9217756 & Up |
| Mercury/Mariner | 7.5 HP | 7.5 | 2-Stroke | 1979-1986 | 47-89980T1 | Made in BEL: Serial Range 9217756 & Up |
| Mercury/Mariner | 4.5 HP (1-Cyl.) | 4.5 | 2-Stroke | 1980-1985 | 47-89980T1 | Made in BEL: Serial Range 9258281 & Up |
| Mercury/Mariner | 4 HP (1-Cyl.) | 4 | 2-Stroke | 1982-1986 | 47-89980T1 | Made in BEL: Serial Range 9258281-9477829 |
| Mercury/Mariner | 9.8 HP (Model 110) | 9.8 | 2-Stroke | 1979-1985 | 47-89980T1 | Made in CAN: Serial Range 7125388 & Up |
| Mercury/Mariner | 7.5 HP | 7.5 | 2-Stroke | 1979-1986 | 47-89980T1 | Made in CAN: Serial Range 7125388 & Up |
| Mercury/Mariner | 4.5 HP (1-Cyl.) | 4.5 | 2-Stroke | 1980-1985 | 47-89980T1 | Made in CAN: Serial Range 7147238 & Up |
| Mercury/Mariner | 4 HP (1-Cyl.) | 4 | 2-Stroke | 1982-1986 | 47-89980T1 | Made in CAN: Serial Range 7143688 & Up |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Water Pump Impeller Kit |
| Installation | Direct replacement |
| Impeller ID | 0.438" (11.13 mm) |
| Material | Neoprene rubber (impeller) |
| Compatibility | Mercury/Mariner outboards with specified HP ranges |
| Housing Color | Black |
Package Contents
This kit includes the following components:
- 1 x Sleeve (700-12963)
- 1 x Impeller (700-89800)
- 1 x Wear Plate (700-12560)
- 1 x O-Ring (700-81230)
- 1 x O-Ring (700-81090)
- 1 x Seal (700-85651)
Installation Guide
- Disconnect the battery and spark plug wires for safety.
- Place the outboard in neutral and remove the lower unit (gearcase) bolts.
- Carefully lower and separate the gearcase from the engine.
- Unbolt and remove the water pump housing cover to access the impeller.
- Remove the old impeller, wear plate, gaskets, and seals. Note their orientation.
- Clean the housing interior and mating surfaces thoroughly.
- Install the new O-rings, seal, wear plate, and sleeve from the kit.
- Seat the new impeller into the housing, turning the driveshaft clockwise to bend the vanes correctly.
- Reinstall the water pump housing and tighten the bolts to the manufacturer's torque specifications.
- Re-attach the lower unit to the engine, ensuring all shafts and tubes align correctly.
- Reconnect the battery and spark plugs. Start the engine and verify a steady water stream from the tell-tale.
Troubleshooting & FAQ
Q: How do I confirm this impeller kit fits my specific engine?
A: The best way is to verify your engine's model, horsepower, and year against our compatibility table. Most importantly, check the serial number range listed in the "Notes" column. This kit is for engines requiring an impeller with a 0.438-inch inner diameter.
Q: What are the symptoms of a bad or failing water pump impeller?
A: Common signs include the engine overheating, an alarm sounding (if equipped), or a weak or non-existent water stream from the "tell-tale" outlet. Reduced engine performance can also be an indicator.
Q: How often should I replace the water pump impeller?
A: For preventative maintenance, it is recommended to replace the impeller every 1 to 2 years or every 100-200 hours of operation, whichever comes first. The interval may be shorter if you operate in sandy, silty, or saltwater conditions.
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:
- 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
4.5 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
likely my favorite read of this entire year
Format: Kindle
Noah Blue has finally made it to the big leagues with her webcomic's success, as she lands a full-time job at the company responsible for the relaunch of the cult classic Queen Leisah. The comic is expected to be a smash hit, with movie deals already in the works. Noah's career is taking off, but there's one obstacle standing in her way.
Sage Montgomery's natural talent has brought her to the top of the charts for eight consecutive years. Although her career has hit a plateau, she believes that working on a high-profile, mainstream comic will help her breakthrough. She expected complete creative control over the Queen Leisah relaunch, but instead, she must share credit with an artist who has been her rival since college. This artist has a real chance of surpassing her in skill.
Sage and Noah must put their rivalry aside and cooperate, or at least make it appear that way. They thought the biggest challenge would be working together, but the real challenge turned out to be falling in love.
Touching her was like diving into a warm pool, the heat soothing yet close to being unbearable. I wanted more, but I wasn’t confident I'd be able to handle more. That I was worthy of more.
This book was probably one of the cutest books I have ever read and I'm so glad that I picked it up so early in my 2024 reading year because now I get to spend the rest of 2024 shoving it at everyone I know because this is a book I need every person to read. If you look at my entire January wrap-up and decide to only take one of my recommendations, let it be this one. It will leave you feeling all of the things and I don’t know if there is a cuter couple than Noah and Sage.
I'll start my talking points with Noah, a fellow people-pleaser who worries a lot internally about whether or not she belongs at her new job with people she sees as the best of the best. I related to her for the people-pleasing aspects and it broke my heart to hear how her family talked about her art career. I absolutely loved her personality and if I could have a fictional character go shopping with me and help me pick out outfits because her style and overall vibes were immaculate. I loved the realness of her struggle to the top and the reality of what pushing yourself like that can be like.
And then there is Sage, the oldest daughter who is literally taking on the entirety of taking care of her family on her own shoulders and feeling like she needs to be in control of everything all of the time, also super relatable for me personally. Sage’s growth throughout this book was probably one of my favorite points. The healing journey that she goes on throughout was inspiring and really beautiful which had me emotional at times. I loved the realness of how burnout was spoken about throughout this book. And I especially loved the way that her bisexuality was talked about in the book and how it can feel like people expect you to just pick a side.
This book really delivered the rivals-to-lovers aspect of things and I really appreciated the term rivals being used as opposed to enemies because it just fit them so much better. The way that they started in direct competition with one another only to realize it shouldn’t have been one to begin with and the two of them just rooting for each other even at the expense of their own losses was just absolutely beautiful. Their chemistry as a couple was off the chart and from start to finish I was rooting so hard for them. I appreciated how open and direct they were with their communication and how their friend group grew closer and helped along the way.
Outdrawn was seriously so cute and I know I’ve already said it but I can’t help but use that word when describing this book. I definitely recommend it to literally everyone and cannot wait to read more of Deanna Grey’s books!
- rivals to lovers
- sapphic romance
- bisexual rep
- lesbian rep
- Black romance
- comic book artists main characters
- workplace romance
- banter for days
- slow burn
- lots of pining
- opposites attract
- grumpy/sunshine
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Reviewed in the United States on February 10, 2024
★★★★★ 4
A refreshing romance read after a recent stent of mediocre reads
Format: Kindle
Well to be quite frank, over the last month or two, I've downloaded a ton of free romance books, got to love Kindle Day, with that being said I kinda can hit a snag as far as reading a ton of books that are meh as in the author delivering something short and sweet and free. And this book, I felt like the author took time to invest us in the back story to make an enemies to friends Trope really, really work and feel flushed out and .... Hmm not as dimensionaless as I've been enduring.
Of course this book isn't free unless you have Kindle unlimited, which I do so maybe that's why I'm kind of lumping it into some of my Kindle day reads because I didn't pay anything for it. Even though of course I did with the subscription. It just felt refreshing. Now does it mean that the story didn't have flaws... it did.
That comes in the form of the sex. If we were to give like a chili peppers rating on how steamy it was. I will give this about a notch over Pg13 as far as how substantial and how much the author was able to kind of, I don't know, give us the eemf. I love the consensual stuff. It was great but it... I don't know, something just felt like it was missing. like how in the photo booth scene in this story describes a kiss. It could have been better.
But overall, I enjoyed the story
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Reviewed in the United States on December 11, 2023
★★★★★ 5
One of the best romance books I've had the pleasure of reading
Format: Kindle
This is one of the best romance books I've had the pleasure of reading. Every character, no matter how much page time they received, was fleshed out with flaws and backgrounds and personalities all their own. Sage and Noah, our FMC's, were relatable and lovable. The rivalry didn’t feel contrived, and the progression towards love felt natural. By the time Noah and Sage were falling for each other, the writing had completely dragged me, as the reader, along with them! During Noah’s POV, I was absolutely as smitten with Sage as she was, and the reverse rang true during Sage’s POV.
And the bickering! The way these women teased and taunted each other had me kicking my feet and giggling.
What really touched my heart though, and what will stay with me for a long time, was the exploration of asking for “help” vs looking for “rescue.” How asking for or accepting help, or putting up personal boundaries, doesn’t reduce your personal strength or worth. How it’s necessary and often a way of letting your friends/loved ones show their own caring.
Noah and Sage were both strong women. Neither needed to save or be saved by anyone. They met on equal footing and formed a deep understanding of each other because of it, which only enhanced their ability to lean on each other and support each other once they learned to allow themselves. In turn, that actually deepened their bond and brought both further happiness.
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Reviewed in the United States on February 3, 2024
★★★★★ 5
4.5 SO CUTE
Format: Kindle
Sapphic rivals to lovers?? Family angst???
I often wonder why I even pick up contemporary romance or dark romance stories because they almost always disappoint. Either it’s too much hetero nonsense or boring plotting but this book makes me think make it’s not the genre, it’s the books I’m picking up.
I am so in love with the main characters, I loved the witty banter and jabs between these too and also how they sweetened over time. The dialogue was too cheesy for the most part ( more on that later ) and reluctant working together in forced proximity was *chefs kiss*
The family angst was in perfect balance with the romance and felt so relatable, I loved to see the development of both characters learning to stand up to their parents. AND ( spoilers ) THAT ONE SCENE WHERE SAGE TELLS NOAHS FMAILY TO GIVE HER RESPECT AND LET HER FINISH HER SENTENCES BEFORE BUTTING IN??? Weak in the knees.
Weak in the knees.
The smut was perfect( SO MUCH EXPLICIT CONSENT !!! ) , but I think for most people they will want more than we got, especially when the last 10% of the book was a little.. drawn out? ( pun absolutely intended ) in fact the ending being a little slow and out of balance with conflict was one of the only reasons I didn’t give this a full five stars. My other nitpick was that a small portion of the dialogue and the carnival date was a little cheesy. My expectations got higher as the book went along, but once they started dating the clever dialogue got a little too cheddar for me.
Overall I would 100% recommend this book and I could see myself re-reading this one or picking up other books by this author.
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Reviewed in the United States on February 7, 2024
★★★★★ 3
Slow Burn
Format: Kindle
A distinct and unconventional enemies-to-lovers romance novel. This charming and gradual romance novel was characterized by its witty banter, diverse and well-developed characters, and unique personalities. While the pacing was somewhat slow at times, I found it challenging to maintain my attention throughout the entirety of the book. The storyline, though somewhat predictable, was original in its focus on the struggles of artists seeking self-discovery. The narrative explored relatable issues and challenging family dynamics, making it a satisfying read despite its predictability.
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Reviewed in the United States on March 28, 2025