SKU: 65377532218

393630 Water Pump Repair Kit for Johnson/Evinrude | JLM Marine

Sale price$63.86 Regular price$70.95
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Description

393630 Water Pump Repair Kit for Johnson/Evinrude | JLM Marine393630 Water Pump Repair Kit for Johnson Evinrude Complete Maintenance Solution This comprehensive water pump repair kit is engineered for Johnson Evinrude outboard motors ranging from 20HP to 35HP across model years 19802005. Designed to restore reliable cooling system performance, this kit ensures your engine operates at optimal temperature under demanding marine conditions. Direct replacement for OEM part number 393630, this kit provides all

393630 Water Pump Repair Kit for Johnson/Evinrude – Complete Maintenance Solution

This comprehensive water pump repair kit is engineered for Johnson/Evinrude outboard motors ranging from 20HP to 35HP across model years 1980–2005. Designed to restore reliable cooling system performance, this kit ensures your engine operates at optimal temperature under demanding marine conditions.

Direct replacement for OEM part number 393630, this kit provides all essential components for a complete cooling and lubrication system service in one package.

  • Includes water pump repair kit, thermostat, fuel filter, gaskets, and gear oil pump for comprehensive maintenance
  • Fits multiple horsepower ranges across two decades of Johnson/Evinrude models
  • All components meet OEM specifications for reliable, long-lasting performance

Part Number Cross-Reference

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

Brand Part Number
Johnson/Evinrude 393630

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 Serial Number Guide.

Brand Rated HP Years
Johnson/Evinrude 20HP 1985-1998
Johnson/Evinrude 25HP 1985-2005
Johnson/Evinrude 30HP 1984-2005
Johnson/Evinrude 35HP 1980-1996

Technical Specifications

Specification Value
OEM Part Number 393630
Compatible Brand Johnson/Evinrude
Horsepower Range 20HP - 35HP
Year Range 1980-2005

Package Contents

This complete maintenance kit includes the following components:

  • 393630 Water Pump Repair Kit × 1
  • 5005440 Thermostat × 1
  • 0398327 Fuel Filter × 1 View Part →
  • 0327674 Cylinder Head Cover Gasket × 1 View Part →
  • 311598 Drain Screw Gasket × 2
  • 24OP149 Gear Oil Pump × 1

Installation Guide

  1. Preparation: Disconnect the fuel line and remove the lower unit from the outboard motor according to your service manual. Drain all existing gear oil completely.
  2. Remove Old Components: Disassemble the existing water pump housing and carefully remove the old impeller, gaskets, and seals. Clean all mating surfaces thoroughly to ensure proper sealing.
  3. Install Water Pump Kit: Follow the instructions included with part 393630 to install the new impeller, plate, and housing gaskets. Apply marine-grade grease to the impeller before installation.
  4. Replace Thermostat: Remove the old thermostat housing and install the new 5005440 thermostat with a fresh gasket. Ensure proper orientation per your engine's specifications.
  5. Install Cylinder Head Gasket: Replace the cylinder head cover gasket (0327674) ensuring proper alignment with all bolt holes. Torque fasteners to manufacturer specifications in a cross pattern.
  6. Replace Drain Screw Gaskets: Install both new 311598 drain screw gaskets on the lower unit drain and fill plugs. Do not overtighten to avoid crushing the gaskets.
  7. Install Fuel Filter: Replace the existing fuel filter with the new 0398327 filter in the fuel line. Ensure the arrow on the filter points toward the engine.
  8. Add Gear Oil: Using the 24OP149 gear oil pump, fill the lower unit with the recommended marine gear oil through the lower drain hole until oil appears at the upper vent hole.
  9. Reassemble Lower Unit: Reinstall the lower unit to the motor, ensuring the driveshaft engages properly. Tighten all mounting bolts to specified torque values.
  10. Final Checks: Reconnect the fuel line and inspect all connections for leaks. Start the engine and verify water flow from the telltale indicator.
  11. Test Run: Run the engine in a test tank or on-water for 10–15 minutes, monitoring operating temperature and water pump discharge. Check for any fuel or gear oil leaks.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific Johnson/Evinrude engine?
A: Cross-reference your engine's horsepower and year with the compatibility table above. Verify your original water pump uses OEM part number 393630, and use the Johnson Serial Number Guide linked above to confirm your model year.

Q: How often should I replace the water pump and these components?
A: Water pump impellers should typically be replaced every 2–3 years or 200–300 hours of operation, whichever comes first. The fuel filter should be changed annually, while gaskets and the thermostat should be inspected during each water pump service and replaced as needed.

Q: What are the signs that my water pump needs replacement?
A: Common symptoms include reduced or no water discharge from the telltale indicator, engine overheating, weak water stream, or unusual noise from the lower unit. If you notice any of these signs, inspect and replace the water pump immediately to prevent engine damage.

Q: Can I install this kit myself or do I need a professional?
A: If you have mechanical experience and the proper tools, this installation can be completed in 2–3 hours. However, it requires lower unit removal and precise torque specifications. Professional installation is recommended if you're unfamiliar with outboard service procedures.

Q: Does this kit include everything I need for a complete water pump service?
A: This package includes the water pump repair kit and related maintenance components (thermostat, fuel filter, gaskets, and gear oil pump). You will need to supply marine-grade grease for the impeller and gear oil for refilling the lower unit.

Q: What's the difference between OEM and aftermarket parts?
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: 65377532218

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4.2 ★★★★★
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Bernadette Smith
Phoenix, US
★★★★★ 5
Excellent Rivals to Lovers!!
Format: Kindle
The tension and banter between Huntyr and Wold was delectable. I absolutely love the fallen angel and all of his flaws. Huntyr is amazing too being a badass FMC with some major trauma. The world building was great and I enjoyed the training aspect of the story. The writing was immersive and was in the story the whole time. The ending had quite a twist that I hadn’t anticipated and made my jaw DROP. Excellent job! I also loved the narration. Laura is one of my fave narrators!
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Reviewed in the United States on August 15, 2025
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❈ Elizabeth ❈ | Breakawayreads
Whiting, US
★★★★★ 5
Fallen Angels, fae, vampires, oh my!
Format: Kindle
Rating: 4.5 | Spice: 2 (but a good slow-burn) • Main Characters: Huntyr and Wolf • I couldn’t wait to read this book; there was so much hype about it! And there was no doubt why. I fell in love with the characters and the plot itself. This book is mainly plot driven more than friction driven but it’s easy to follow along with. The characters are fun, easily understood. The main setting is at an academy where both the main characters are going through trials and building strength for the final test, The Transcendent. There are fantastic side characters as well. I loved the camaraderie between Huntyr and her friends. But we don’t like Lanson. 😆 We do have some plot twists that come into play throughout the book. Secrets and betrayal to be seen. I did adore Wolf and Huntyr’s relationship. It was a classic slow burn trope. They didn’t hit it off fast, but in time their feelings grew. I loved their banter, so sexy. Wolf is your next book boyfriend; Huntyr is your next vampire assassin independent bad-a*s female. Themes include loyalty, trust, self-discovery, a true slow burn romance. Side note: book ends on a angsty cliffhanger! • Emily, thank you for writing this awesome novel and I cannot wait to devour Book 2, Blood So Brutal! 😍 • Happy reading, my lovelies! xo
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Reviewed in the United States on January 21, 2024
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MelsABookworm
Phoenix, US
★★★★★ 4
“My heart bows to you and you only, Huntress.”
Format: Kindle
3.5 🌟 This book popped up in my KU recommended reading suggestions and the synopsis sounded like what I was in the mood for. I'm so glad I took a chance on it. I went into this knowing absolutely nothing about it and ended up really liking it. I love when this happens. The main characters are likeable and I easily found myself rooting for them. There is a mystery element to each of their backstories that I enjoyed watching unfold and can't wait to get more of. Wolf, in particular, has me fixated. Love him. I found this to be an entertaining, addictive read with a plot that moves along at a good pace. It reads so easily I found myself very reluctant to put it down. Lots of twists and turns and the angst is there. A good set up for the next book to come, for sure. My issues with this book....the dialogue feels a bit juvenile at times and there is a repetitive over use of a particular word phrasing that I found myself giving the ole eye-roll to. There are, without a doubt, some pretty cliche moments that gave me a bit of the cringe. I think this could've certainly 100% benefited from more depth regarding the world building. Perhaps the world building was sacrificed to keep the pacing quick? Just a guess. Also, the lack of consistency of character for the FMC was really evident and so she feels quite illogical at times. Overall, this was a fun and enjoyable read that hit the spot well enough for me. That ending certainly has me impatiently pining for book 2!
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Reviewed in the United States on June 18, 2024
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Amazon Customer
Belleville, US
★★★★★ 3
Interesting take on the genre
Format: Kindle
True rating: 3.25 ⭐️ I enjoyed the fresh take on the genre. The best way I could describe the setting and world is an apocalyptic dystopian version of Farie where vampires, fae, and angles struggle to survive in what is left of the world. It was definitely interesting throwing the academy/hunger games aspect into this world as well. Even though I guessed the final reveal early on in the book, I kept hoping I was wrong, and it would take a surprising turn. While the "plot twists" were a bit predictable to me, I still enjoyed the ride this book took me on. Another downfall for me was the plot holes in the world building... I.E. if society has fallen and the world is in the aftermath of war, how are there trains running around the world? Just to take young adults to the trials to get into the golden city? How is the train maintained, the tracks clear, etc? However, I did enjoy the FMC & MMC and thought they were fleshed out nicely. I also enjoyed the side characters but wish some were developed more like Ashalin (sp?). I do find myself rooting for the MCs to succeed and find happiness together, which is obviously an important aspect for romantasy. Overall, was this an earth-shattering, mind-bending, terrific piece of literature? No. But was it the worst thing I've read this year? Also, no. This book has, to me, the bones of a great read & just needs a bit more to push it from an alright book to a great book. Overall ratings: Plot- 3.5⭐️ World building 3⭐️ Spice 2.5 🌶🌶 Main characters 4 ⭐️ Supporting characters 3.5⭐️
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Reviewed in the United States on May 12, 2024
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Irene zamora
Birmingham, US
★★★★★ 5
great book
Format: Kindle
I am really excited to meet the author at the book retreat this month. I really enjoyed this world that she built and most of the female main character Huntress is so awesome. She goes through a lot in this book and the ending; wow! I wouldn't have even guessed. I highly recommend everyone to read this book. I have been so lucky this year that almost all the books I have read have been, so far, 5 out 5 stars.
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Reviewed in the United States on June 2, 2026

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