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Description
Water Pump Impeller Kit – Fits Johnson/Evinrude 8-15 HP (Replaces 394711)Water Pump Impeller Kit Fits Johnson Evinrude 8 15 HP (Replaces 394711) This water pump impeller kit is designed for Johnson and Evinrude 8 15 HP 2 Stroke (1974 UP) and 9. 9 15 HP 4 Stroke (1995 2001) outboard engines. It serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring a precise fit and restoring your engine's cooling system performance. Please note, this kit does not fit Johnson rebranded Suzuki outboards (2002
Water Pump Impeller Kit – Fits Johnson/Evinrude 8-15 HP (Replaces 394711)
This water pump impeller kit is designed for Johnson and Evinrude 8-15 HP 2-Stroke (1974-UP) and 9.9-15 HP 4-Stroke (1995-2001) outboard engines. It serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring a precise fit and restoring your engine's cooling system performance. Please note, this kit does not fit Johnson rebranded Suzuki outboards (2002-2007) or Bombardier-branded 4-stroke engines.
This kit provides a comprehensive solution for replacing your worn or damaged water pump components, helping to prevent engine overheating and ensure reliable operation on the water.
- Installation Type: Direct Replacement
- Impeller Design: Durable 6-fin neoprene impeller
- Complete Kit: Includes the impeller, housing, wear plate, cup, and all necessary gaskets, o-rings, and bolts for a full service.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Sierra | 18-3327 |
| Johnson/Evinrude | 394711 / 386697 / 387610 / 389112 / 391698 |
| GLM | 12050 |
| Mallory | 9-48201 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson | Outboard | 8 | 2-Stroke | 1974-UP | 394711 | Some models only |
| Johnson | Outboard | 9.5 | 2-Stroke | 1974-UP | 394711 | Some models only |
| Johnson | Outboard | 9.9 | 2-Stroke | 1974-UP | 394711 | |
| Johnson | Outboard | 10 | 2-Stroke | 1974-UP | 394711 | Some models only |
| Johnson | Outboard | 15 | 2-Stroke | 1974-UP | 394711 | |
| Evinrude | Outboard | 8 | 2-Stroke | 1974-UP | 394711 | Some models only |
| Evinrude | Outboard | 9.9 | 2-Stroke | 1974-UP | 394711 | |
| Evinrude | Outboard | 10 | 2-Stroke | 1974-UP | 394711 | |
| Evinrude | Outboard | 15 | 2-Stroke | 1974-UP | 394711 | |
| Johnson/Evinrude | Outboard | 9.9 | 4-Stroke | 1995-2001 | 394711 | |
| Johnson/Evinrude | Outboard | 15 | 4-Stroke | 1995-2001 | 394711 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Water Pump Impeller Kit |
| Installation | Direct Replacement |
| Fuel Type | Gasoline |
| Housing Material | Brass/Metal |
| Dimensions | Impeller diameter approximately 1-1/2" (38.1 mm) |
| Weight | Approximately 0.20 kg (7 oz) |
| Operating Temperature | Marine operating environment |
| Other Technical Attributes | 6-fin neoprene impeller design |
Package Contents
- 1 x Impeller (386084)
- 1 x Impeller Key (300611)
- 1 x Wear Plate (318995/18-3178)
- 1 x Pump Cup (324097/18-3179)
- 1 x Pump Housing (435390/18-3180)
- 3 x Grommet (338908/302497/327035/18-3329/18-2392)
- 2 x O-Ring (202893/319085/18-7116/18-7139)
- 1 x Pin (18-3326)
- 4 x Installation Bolt (302325/18-3369)
Installation Guide
- Disconnect the battery and remove the engine cover.
- Drain the lower unit gear oil completely.
- Unbolt and carefully lower the gearcase from the drive shaft housing. Disconnect the shift shaft if necessary.
- Place the gearcase on a workbench and remove the bolts securing the water pump housing.
- Lift off the old pump housing, and carefully remove the impeller, cup, and wear plate, noting their orientation.
- Remove the old impeller key, gaskets, and seals. Thoroughly clean all mating surfaces of debris and corrosion.
- Install the new wear plate and gasket onto the gearcase.
- Slide the new impeller key onto the driveshaft. Install the new impeller by pushing down while turning the driveshaft clockwise to seat the fins correctly inside the new pump cup.
- Place the new O-rings and pump housing over the assembly, then tighten the bolts to the manufacturer's specified torque.
- Carefully reinstall the lower unit, ensuring the driveshaft, water tube, and shift shaft are correctly aligned and seated.
- Refill the gearcase with the correct type and amount of fresh gear oil.
- Before launching, connect a water supply (flushing muffs) to the lower unit. Start the engine and confirm that a steady stream of water is exiting the tell-tale port.
Troubleshooting & FAQ
How do I confirm this kit fits my outboard?The best way is to verify your engine's model, horsepower, and year fall within the ranges listed in our "Compatible Engine Models" table. Pay close attention to the notes, especially the explicit exclusions for certain Johnson/Evinrude models (rebranded Suzuki and Bombardier 4-strokes).
What are the signs of a failing water pump impeller?Common symptoms include the engine overheating at idle or low speeds, a weak or non-existent water stream from the "tell-tale" outlet, and in severe cases, an engine alarm. If you notice any of these signs, you should inspect your cooling system immediately.
How often should the water pump impeller be replaced?For preventative maintenance, it is highly recommended to replace the impeller and other kit components annually or every 100 hours of operation, whichever comes first. This helps prevent unexpected failures and potential engine damage from overheating.
OEM vs. Aftermarket?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:
- 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
4.7 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Great soap
Style: For Him
Luv this soap better than the Dr. Squash soap so far . It lathers good cleans ,no film , and luv the smell of it . I will most definitely buy again . It's my soap from now on for sure . Luv everything about it
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Reviewed in the United States on June 3, 2026
★★★★★ 3
IMMEDIATE REACTION, PLUS FOLLOW UP AFTER A WEEK!
Style: For Him
**Package arrived LITERALLY 5 minutes ago, here is my immediate initial reaction, and then I'll actually post this after USING the soap and getting a better feel for the product.**
Keeping in mind that smell is subjective, here are my knee jerk thoughts on the bars of soap:
- Firstly, I can smell the soap through the bag (and box). Whatever scent this is, it's POTENT.
- Opening the box, the bars of soap look a LITTLE small. Not egregiously so, but a little bit smaller than your average bar of soap; BUT I check them against a new bar of Dove soap that I have, and they are identical. The eyes are playing tricks on you with these.
- Here is the breakdown of the 6 scents
- Activated Charcoal. This is what I was HOPING would smell like the "Pine Tar" that other companies (like Dr. Squatch, which I've never used, btw) have, but it is the "soap-est" smelling soap, with a hint of tar. It smells a little bit like a can of new paint.
- Tango Mango. IMHO, the best smelling of the 6, with strong citrus smells. Very lemon-y, but pleasant.
- Eucamint. Ahhh, here's what was permiating out of the box. This smell is STRONG, with an AGGRESSIVE mint smell. Like, Ben Gay mint. And as strong to boot. It doesn't smell BAD, but it's hands down the strongest scent.
- Oatmeal Shea. Meh. Kinda smells like an old coat that would be hanging in your grandfathers closet. It's not a BAD smell, but it has this weird odor to it, like when you leave a can of peanuts in your cupboard for a long time, and then go back and smell it.
- Patchouli Lime. This one kind of smells like a mixture of Activated Charcoal, Eucamint and Oatmeal Shea. It smells like a room that you just painted a day or two ago, and it definitely has the Ben Gay after aroma lingering.
- Apline Spice. This smells like a box. Like find an empty cardboard box, open it, and take a whiff. Boom, Alpine Spice. My least favorite.
I will say, none of them STINK; as in there isn't a smell that I'm like, "ewww, I don't want to smell like AT ALL!" Which sounds weird, because I described some of them as "paint," "an old coat," and "a cardboard box," but I feel that those are just very passive smells, not aggressively bad ones. If there is a problem soap, I would assume it's going to be Eucamint, because it might just be too overpowering, although I've found that the more you smell them, they seem to mellow out. I imagine that after a shower with these, the smell will dissipate enough that it will be more mild. Still, with the exception of Tango Mango; a very good smelling soap mind you, I'd say they are all very "manly" scents, and I'm excited to try them out.
Ok, so I'm a little over a week in, and here's my final take. (I made it through Activated Charcoal and Tango Mango):
First, the scents ABSOLUTELY mellow out when used to actually shower with them. My wife, who admittedly isn't really up on me like that, hasn't even mentioned me smelling differently than the last 11 years. So, if she's even noticed, it's not on a level to make a fuss about. This is important because fresh from the box, these things have some powerful scents, but they are definitely tamed by washing with them.
The bars last ABOUT 7 showers. Obviously, your mileage will vary based on how long you're in the shower, how much you scrub, how you store them, etc, but I was able to get 7 GOOD showers out of these. I have them in these natural sisal (whatever that is) exfoliating bags that help lather and store the soap, and really did some good scrubbing in my showers. The bars lather decently, but I'm not sure how much the bag helps with that. If you are a once a day showerer, a bar a week is a very fair approximation of what you'll get.
I definitely felt.....SOMETHING I didn't before with my shower gel showers. I don't know if that's the moisturizing, or the exfoliation, but my skin felt a little different after showering.
A decent buy. I'm not thrilled, but I'm not upset either. I don't think it changed my life, or even the way I shower, but I'm not mad at the experiment. I may try the Dr. Squatch soaps to see how all these stack up.
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Reviewed in the United States on December 1, 2020
★★★★★ 5
Convinced to make the switch
Style: Citrus
Love this soap. I was using Jukebox, but I'm making the switch. Crate 61 feels better on my skin, the bars last a little longer and the 6 pack is $15 cheaper than I was paying for 6 bars with the Jukebox subscription. I get extremely dirty at my job so I tend to go through soap faster than the average women. Jukebox bars would last me about 4 days. These will last 6 or 7 days. Jukebox bars were a definite upgrade from body wash, but it would irritate the sensitive areas. I don't have that issue with this soap. Jukebox bars smell nice in the shower, but I feel like the scent didn't last beyond that. Crate 61 leaves a pleasantly subtle smell on my skin after showering. The only benefit with Jukebox is that you can choose the individual soaps in your 6 pack, rather than selecting one of the collections.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Groundbreaking Work!
Format: Hardcover
The first thing to note here is the author is trilingual. He's Polish by birth, writing very credibly in his second language (English), and using his Nihongo to translate Japanese source materials into English for the first time. Wow! As a historian myself, I only wish I had those kind of language skills.
The second thing I'll say is that I learned a lot from the book. I've never seen many of the details the author had dug up. He's doing the same sort of thing that Tony Tully and I did in Shattered Sword--using the Japanese air group records, and Senshi Sosho, as well as more modern sources from Japanese historians like Mori Shiro--to paint a much richer picture of the Japanese side of the battle. And in some ways he's doing it better, because his language skills are so formidable that he was able to look at more Japanese source material than we were. Bravo Zulu.
An example: for years American historians have portrayed the placement of Shoho in front of the Japanese invasion force as either 1) a bait force to lure the Americans away from Japan's main carrier force, or 2) at the very least an indication of extreme Japanese hubris, by sticking a lone light carrier's neck out waaaay too far. It turns out that there were a number of Japanese staff officers that were appalled at the dangers Shoho was being exposed to, and lobbied for her inclusion in the main carrier force instead (which would have made a lot more sense, frankly, and was a detail I hadn't known before.) But those officers were overridden in the name of keeping at least some air cover near the invasion force. What this demonstrates is that even here, at the very beginning of the war, the Japanese were already over their skis in terms of the fragility of their air power.
All in all, Piegzik's book is a very welcome contribution to the English literature on the Pacific War. He has also written what is (from all accounts) a fine series on the Indian Ocean raid that I need to pick up as well. I am really looking forward to his continued publications in the field.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
An excellent book
Format: Hardcover
An excellent book, based on Japanese documents—offering, for the first time, such a detailed account of the first aircraft carrier battle, presented from the Japanese perspective. It covers every Japanese aircraft involved, as well as the fates of their naval aircrews. A must-read for anyone interested in World War II in the Pacific.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026