SKU: 26528264906

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

Sale price$22.45 Regular price$24.95
Save 10%

Pay in installments of $6.24 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
G
Grammar Guru
Belleville, US
★★★★★ 5
Very nice kit: Beware it is NOT heavy duty plumbing pipe though!
Size: side table leg
I want to give this kit a high rating, but I need to address the "truth in advertising" bit since there may be an important disconnect between what you think you are getting and what actually comes in the box. Black plumbing used for shelving or table legs is part of an important niche in interior design. I like the industrial loft look myself and have a variety of glass, steel, and masonry elements in my home. This kit fits that look and provides plenty of "strength" for most domestic uses, like shelves or coffee tables. But they are NOT "industrial pipe" or "maximum durability pipe." Note the phrase "cast iron finish feet," which together with the other claims might lead you to think these are cast plumbing fittings. They are NOT! The feet and flanges feel like electrical conduit fittings, and the pipe sections are likely aluminum. They might be electrical or they might be multi-use, lightweight pipe. While all this might lead you to think that you're getting a truly retro, heavy-duty pipe kit made of black plumbing pipe, you are not. But, does it matter? Depends. I find the lighter pipe's smooth finish a nice "tone-down" from the rough plumbing look. All together, this kit provides plenty of strength for most furniture and the rustic pipe look, but with a nicer, lighter finish. To me that is a plus--this is a very nice kit and costs less that if you'd pieced it together from real plumbing parts (I priced it out to compare), and looks retro but cleaner. I knew what to expect because while I got this kit free on Vine, I had purchased a nearly identical kit from another seller last year. So, I'm giving it 5 stars for what it actually is and for the price, JUST BE AWARE THE NARRATIVE IS MISLEADING. Which is unfortunate because just like some people might want the heavier pipe, I'm betting more would be attracted to the look with a cleaner, lighter feel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
F
Verified Purchase
franny
Los Angeles, US
★★★★★ 5
Great project & great quality
Size: 38"Height × 14" Wide, Size: 38"Height × 14" Wide
These legs were used on a 26”x72” DIY quilting ironing table. The Mdjwjj Industrial Pipe Counter Bar Height Table Leg, Metal Table Legs, Iron Base are sturdy & made of real metal, nothing cheap about this product. Legs were easy to install. Highly recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2025
S
Verified Purchase
Sammy.
Omaha, US
★★★★★ 5
Very good
Size: 38"Height × 14" Wide
It look nice and it worked very good, build strong
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
K
Verified Purchase
K Younger
Louisville, US
★★★★★ 5
Do it yourself
Size: 38"Height × 14" Wide
I purchased a similar set to custom make a dining room table out of butcher block, and it turned out perfect. So with the left over butcher block I purchased these legs and made the perfect kitchen island to match. It is very sturdy and a great price. Everyone wants to know where I purchased it from. I also put a piece of the butcher block across the lower bars and made a lower shelf. Love love love this.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 2, 2025
T
Verified Purchase
Tani
Port Orchard, US
★★★★★ 4
Plan your project right & these will look great!
Size: 38"Height × 14" Wide
These are great legs for a table. They are sturdy and go together nicely. The painted finish is well done, meaning it doesn't scratch or peel or come off easily. Also the way things were packaged was considerate of the weight and possibility of damage during shipment. There were even extra attachment screws included which was helpful since I lost one under the dishwasher. When considering what legs to purchase for your particular table, the height, dimensions, and weight of the top all need to be factored in. I used these bar height legs under a very heavy, 7' long X 2' wide top. Common physics dictates that there will be lateral movement between the 2 "H" shaped leg sets. There HAS to be support between the 2 H leg sets to prevent that lateral movement. So these alone will not support a long table very well, because physics. This is not in any way the fault of this product. Be aware that there is more to the stability equation and be prepared to add cross bracing to your project.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2025

recommand products