SKU: 26528264906

Water Pump Impeller Kit – Fits Johnson/Evinrude 4-8 HP (Replaces 396644, 0396644, 18-4529)

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Description

Water Pump Impeller Kit – Fits Johnson/Evinrude 4-8 HP (Replaces 396644, 0396644, 18-4529)Water Pump Impeller Kit Fits Johnson Evinrude 4 8 HP (Replaces 396644, 18 4529) This water pump impeller kit is designed for Johnson Evinrude 4 8 HP 2 Stroke outboards (1980 2005) and 5 6 HP 4 Stroke (128cc) outboards (1998 2004). It provides a direct fit replacement solution for your original water pump components, ensuring reliable engine cooling. This kit serves as a direct replacement for Johnson Evinrude part numbers 396644 0396644, Sierra 18

Water Pump Impeller Kit – Fits Johnson/Evinrude 4-8 HP (Replaces 396644, 18-4529)

This water pump impeller kit is designed for Johnson/Evinrude 4-8 HP 2-Stroke outboards (1980-2005) and 5-6 HP 4-Stroke (128cc) outboards (1998-2004). It provides a direct-fit replacement solution for your original water pump components, ensuring reliable engine cooling.

This kit serves as a direct replacement for Johnson/Evinrude part numbers 396644 / 0396644, Sierra 18-4529, and GLM 12255.

  • Engineered with marine-grade materials for durability in freshwater and saltwater environments.
  • Includes all necessary gaskets, seals, and hardware for a complete rebuild of the impeller assembly.
  • Designed for a direct fit into the original water pump housing, simplifying installation.

Part Number Cross-Reference

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

Brand Part Number
Johnson/Evinrude 396644 / 0396644
Sierra 18-4529
GLM 12255

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/Evinrude Various 4 2-Stroke 1986-1992 396644
Johnson/Evinrude Various 4.5 2-Stroke 1980-1984 396644
Johnson/Evinrude 4 Deluxe 4 2-Stroke 1985-1988 396644
Johnson/Evinrude Various 5 2-Stroke 1980-1983, 1996-2001 396644
Johnson/Evinrude Various 5 4-Stroke (128cc) 1998-2004 396644
Johnson/Evinrude Various 6 2-Stroke 1980-1985 396644
Johnson/Evinrude Various 6 2-Stroke 1984-2001, 2003-2005 396644
Johnson/Evinrude Various 6 4-Stroke (128cc) 1998-2004 396644
Johnson/Evinrude Various 7.5 2-Stroke 1980-1985 396644
Johnson/Evinrude Various 8 2-Stroke 1980-2001, 2003-2005 396644

Technical Specifications

Specification Value
Product Type Water Pump Impeller Kit (without housing)
Installation Direct fit to original housing
Other Technical Attributes Marine Grade Materials
Fitting Type Vehicle Specific Fit
Dimensions 4.29 × 3.82 × 2.24 inches (109 × 97 × 57 mm) (package dimensions)
Weight 6.2 ounces (176 g)
Warranty Amazon Voluntary 30-Day Return

Package Contents

  • 1 x Impeller (389576)
  • 1 x Pin/Drive Key (300611)
  • 1 x Pump Cup/Impeller Housing Cup (324641)
  • 1 x Wear Plate (324640)
  • 2 x Gaskets (325040)
  • 1 x O-Ring (303191)
  • 2 x Grommets (302497, 321129)
  • 4 x Screws (324430)

Installation Guide

  1. Safety First: Disconnect the battery and spark plug wires before beginning any work.
  2. Access the Lower Unit: Drain the gearcase lubricant. Unbolt and remove the lower unit (gearcase) from the outboard's driveshaft housing.
  3. Disassemble the Water Pump: Locate the water pump housing on top of the gearcase. Remove the bolts securing the housing to access the impeller.
  4. Inspect and Remove Old Parts: Take note of the orientation of all parts. Remove the old impeller, gaskets, wear plate, and seals. Clean all mating surfaces thoroughly.
  5. Install New Components: Lightly grease the new wear plate and pump cup. Install the new drive key and slide the new impeller onto the driveshaft, rotating it in the direction of engine operation.
  6. Reassemble and Test: Install the new gaskets and re-secure the housing. Re-install the lower unit, refill the gearcase lubricant, and reconnect the battery/spark plugs. Test the engine using a water source (flushing muffs) to confirm a strong water stream from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this fits my engine?
A: The best way is to check the part number on your original component and compare it to the numbers in our "Part Number Cross-Reference" table. You should also verify your engine's make, model, and year against our "Compatible Engine Models" list.

Q: Does this kit include the entire water pump housing?
A: No, this is a water pump impeller kit and does not include the main plastic or metal housing. It is designed to rebuild the wearable components inside your existing housing.

Q: What are the signs of a failing impeller?
A: Common signs include the engine overheating at idle or low speeds, and a weak or non-existent water stream from the "tell-tale" outlet on your outboard.

Q: How often should I replace my water pump impeller?
A: As a general maintenance rule, it is recommended to inspect and likely replace your impeller every 1 to 2 years, or every 100-200 hours of use, to prevent engine damage from overheating. This interval can be shorter if you frequently operate in sandy or silty water.

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: 26528264906

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JNL220
Louisville, US
★★★★★ 5
Don’t let the bad reviews deter you from saving your skin
Style: Restorative Protective Cream-3.3 Fl Oz, Style: Restorative Protective Cream-3.3 Fl Oz
I avoided purchasing this product for a while due to the bad reviews. However, it is still highly recommended by several dermatologist for skin barrier repair. Upon doing my own research, the product can separate if it is stored in cold temperatures (41 degrees or less). This can be fixed people!! It literally says it on the bottle/box and there’s even a video that Amazon posted saying this can happen. It does not affect the product. It’s just the thermal spring water and some oil separating but it can be reincorporated. So I took the risk and ordered this. I’m a first time purchaser. It was already at my door when I was leaving for the gym at 5:30am so I let the package sit in my car for about 1.5 hours (temp was about 70s). I put the tube in a glass of hot sink water for 10 minutes when I got home. I rolled the tube in my hands for a few minutes to mix everything together. Guess what. It came out like a CREAM. No liquid shot out at me. If you can read, do a little research, and can follow instructions, you can get a working product. I have sensitive skin. It’s been a struggle healing my skin barrier but it was getting better. I decided to do something dumb and try dermaplaning. My cheeks have been very red and irritated since. I did avoid active products for a few days after dermaplaning but it was still irritated. Just with the first time use of this product, it was nearly instant relief of some of the redness. It’s fragrance less which is great. It is currently on sale so I think the value is good for what it is right now. I only used two pea-sized amount for my whole face so I think it will last awhile. This can significantly help your skin barrier! Do your own research and read the instructions!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
S
Verified Purchase
S. Lewis
Battle Creek, US
★★★★★ 3
Samples great, purchased product not
Style: Restorative Protective Cream-1.3 Fl Oz
My dermatologist recommended this cream after a laser procedure, and gave me some samples to take home. I found the thick, smooth cream calming and protective for my irritated skin. The zinc oxide leaves a whitish cast at first, which does tend to fade after it sinks in, but it could be problem if you have darker skin. Not an issue for me since I’m pale. Because I liked the samples, I ordered two full-size tubes. Both arrived with the product inside completely separated. The texture was nothing like the samples. I opened the first tube and clear, watery liquid spilled everywhere. I quickly recapped it, shook and squeezed the tube as much as possible to try to re-emulsify the product, and it remained stubbornly separated, with chunky white paste suspended in thin liquid. I’ve thoroughly shaken the second tube and continue to hear the sloshing of thin liquid. So apparently once the cream has separated, it will not re-mix. I don’t know what caused the unacceptable condition of the product—manufacturing variation, storage conditions prior to shipping, or conditions during shipment. Whatever it was, I would not buy this product in this way again. The samples were a five star product. The full size product I received was zero stars.
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Reviewed in the United States on February 15, 2026
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Najma Ahmed
Dallas, US
★★★★★ 4
Helped calm my damaged skin barrier, but expect stinging on very raw skin
Style: Restorative Protective Cream-1.3 Fl Oz
I bought this because I severely damaged my skin barrier and needed something gentle that would help my skin calm down and heal. My skin was extremely sensitive, raw, irritated, tight, and honestly uncomfortable even with water touching it. This did help, but I do want to mention that if your skin is VERY damaged or raw, there can be some stinging at first. I experienced that myself during the first few applications. The stinging didn’t last long for me, but I think it’s important to mention because people with damaged barriers are usually desperate for relief and can panic when products sting. What ended up helping me most was using this as part of a simple barrier repair routine instead of using it alone. What I personally did: * Wet my face first with either water or Avène Thermal Spring Water so my skin was damp but not soaking wet * Applied the Avène Cicalfate onto the damp skin * At night, I sealed everything in with CeraVe Healing Ointment (Aquaphor would probably work too) I repeated this every night before bed and sometimes during the day if I was staying home. If I was leaving the house during the day, I would do the same steps but use sunscreen instead of sealing with ointment. I honestly think sunscreen is extremely important when your skin barrier is damaged and trying to heal because irritated skin feels even more sensitive when exposed to sunlight. I used this day and night, very easy to use, and didn’t experience breakouts from it. The texture is thick but comforting once applied, especially when your skin feels dry and stripped. Overall, I would buy this again. I don’t think it’s some overnight miracle product, but it genuinely helped my skin calm down and recover when my barrier was damaged. I personally didn’t notice any strong fragrance, which I appreciated since my skin was already extremely irritated. I also like how versatile this product is. Even though I originally bought it for barrier damage, I can see why people use it for irritation from retinol, over-exfoliating, dry patches, or skin that just feels compromised in general.
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Reviewed in the United States on May 14, 2026
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Taylor Ashley
Bozeman, US
★★★★★ 5
Holy Grail of Moisturizers
Style: Restorative Protective Cream-3.3 Fl Oz
I bought this after hearing a dermatologist on Instagram rave about this cream and now I see why. As someone who suffers from pretty severe eczema this is my go to holy grail for flair ups. Perfect for sensitive skin and can be used daily. It is very thick so provides a thick layer of moisture on your skin. I will say I have bought 2 sizes in this and the smaller size (1.3fl oz) did separate and had a liquid part that would come out. I have bought numerous tubes of the larger size (3.3fl oz) and never had an issue with separation with the larger size. I’m learning as I get older that more expensive does not mean better quality skincare. This is one that is not only affordable, but will also give you noticeable results. I have everyone in my whole family using this product!
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Reviewed in the United States on May 17, 2026
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Kimberly
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★★★★★ 5
Soothing Post-Laser!! Ideal for Aging Skin ~
I just had my first CO2 Laser treatment and once you get past the required use of occlusives (Aquaphor, Doctor Rogers Healing Balm, Vaseline etc.), I was searching for something lighter that allowed my skin to breath yet soothed the dry, itching discomfort. La Roche-Posay Cicaplast Gel was the answer! After laser treatment, you can experience discomfort for up to 10 days. This gel is super lightweight, spreads easily and is not greasy. A small amount easily covered my face and neck. I like the fact that it is fragrance free - I experienced zero irritation. I found the product extremely soothing and really sped up my recovery with dryness and itchiness. This product was more effective than the lotion I was given my the laser specialist! I already use La Roche-Posay facial cleanser and love it. I am adding this product to my skin care regimen even after my laser recovery is complete. Ideal if you are looking for an effective moisturizer that is lightweight and really works on dry/irritated skin.
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Reviewed in the United States on April 8, 2026

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