SKU: 7874895638

Sea Water Pump – Fits Yanmar 2GM & 3GM Series (Replaces 128377-42500, 10-24509-01)

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Description

Sea Water Pump – Fits Yanmar 2GM & 3GM Series (Replaces 128377-42500, 10-24509-01)Sea Water Pump Fits Yanmar 2GM & 3GM Series (Replaces 128377 42500, 10 24509 01) This crankshaft mounted raw water pump is a direct replacement for Yanmar marine diesel engines, specifically the 2GM20 YEU, 2GM20C YEU, 3GM30 YEU, and 3GM30C YEU models manufactured from 1996 to 2004. Please note these are European built models, often identified by an "E" prefix in the serial number (e. g., E00123). This pump replaces Yanmar part numbers 128377 42500 and

Sea Water Pump – Fits Yanmar 2GM & 3GM Series (Replaces 128377-42500, 10-24509-01)

This crankshaft-mounted raw water pump is a direct replacement for Yanmar marine diesel engines, specifically the 2GM20-YEU, 2GM20C-YEU, 3GM30-YEU, and 3GM30C-YEU models manufactured from 1996 to 2004. Please note these are European-built models, often identified by an "E" prefix in the serial number (e.g., E00123).

This pump replaces Yanmar part numbers 128377-42500 and 128397-42500, as well as Johnson pumps 10-24509-01, 10-24509-02, 10-13337-01, and 10-13492-01.

  • Installation Type: Crankshaft Mounted
  • Pump Type: Self-priming flexible neoprene impeller pump
  • Package Includes: 1x Sea Water Pump Assembly

Part Number Cross-Reference

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

Brand Part Number
Yanmar 128377-42500
Yanmar 128397-42500
Johnson 10-24509-01
Johnson 10-24509-02
Johnson 10-13337-01
Johnson 10-13492-01

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Years OEM Part No. Notes
Yanmar 2GM20-YEU 1996–2004 128377-42500 European built model
Yanmar 2GM20C-YEU 1996–2004 128377-42500 European built model
Yanmar 3GM30-YEU 1996–2004 128377-42500 European built model
Yanmar 3GM30C-YEU 1996–2004 128377-42500 European built model

Technical Specifications

Specification Value
Product Type Sea Water (Raw Water) Engine Cooling Pump
Installation Crankshaft Mounted
Connection 3/8 inch hose ports (inlet and outlet)
Housing Material Bronze
Housing Color Bronze/Brass
Weight 1.23 kg (2.7 lb)
Fitting Type Hose barb
Other Technical Attributes Self-priming flexible impeller pump; Neoprene impeller
Warranty 90 Days (aftermarket); Varies by manufacturer

Package Contents

  • 1 x Sea Water Pump Assembly (Replaces OEM #128377-42500)

Installation Guide

Proper installation is critical for performance and safety. Always consult your engine's service manual before beginning work.

  1. Safety First: Turn off the engine and allow it to cool completely. Close the raw water intake seacock.
  2. Access the Pump: Locate the sea water pump, which is mounted on the crankshaft.
  3. Disconnect Hoses: Loosen the clamps and carefully remove the inlet and outlet hoses. Be prepared for some water spillage.
  4. Remove Old Pump: Unbolt the old pump from the engine block or mounting bracket.
  5. Clean Surface: Thoroughly clean the mounting surface to ensure a proper seal with the new pump.
  6. Install New Pump: Position the new pump and tighten the mounting bolts to the manufacturer's specified torque.
  7. Reconnect Hoses: Attach the inlet and outlet hoses to the correct ports on the new pump and secure the clamps.
  8. Final Checks: Open the raw water seacock. Start the engine and immediately check for any leaks around the pump and hose connections. Ensure there is a steady stream of water from the exhaust outlet.

Troubleshooting & FAQ

Q: How do I confirm this pump fits my specific Yanmar engine?

A: This pump is designed for the European-built Yanmar models 2GM20-YEU, 2GM20C-YEU, 3GM30-YEU, and 3GM30C-YEU made between 1996 and 2004. You can identify these models by the "YEU" designation and often an "E" prefix on the engine's serial number. Always cross-reference your existing part number with the ones listed, such as Yanmar 128377-42500 or Johnson 10-24509-01.

Q: What are the common signs of a failing sea water pump?

A: The most common signs include engine overheating, a reduced or complete loss of water flow from the exhaust, visible water leaks from the pump body or weep holes, and unusual noises from the pump area. The flexible impeller inside is a wear item and the primary cause of failure.

Q: How often should the neoprene impeller be inspected or replaced?

A: As a general rule, impellers should be inspected annually and replaced every one to two years, or more frequently depending on usage hours and water conditions (e.g., sandy or silty water). A worn or damaged impeller is the most common cause of engine overheating.

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: 7874895638

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4.5 ★★★★★
Based on 6 reviews
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Product Reviews
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Verified Purchase
Ashton Taylor
Bozeman, US
★★★★★ 3
I love indie authors
Format: Kindle
Let me preface this by saying—writing a book is HARD! Coming up with characters so real that they take on a life of their own, building an entire world, the political/magic system. Designing all of this is no easy feat. That being said. This book had so. Much. Potential. I was so excited to read this book, and I plan to finish it for the sake of finishing it. But. At this point, I would have set I’d aside as a DNF. The book could have benefited from some form of a developmental editor, or an in depth beta reader. I will say this. Within 5 chapters, there are so many… phrases that I’ve highlight that I’ve latched onto. Phrases about books and storms that were written BEAUTIFULLY! So, bravo Linton for hitting the nail on the head as to why readers disappear like they do! However, 5 chapters in and I can already guess where a majority of the story is going. But that’s also because I read like a mad-woman and have read this particular type of story, many different ways. Enemies to lovers where the FMC isn’t who she thinks she is. I am all about supporting indie authors. BUT. I also feel like criticism should be constructive, and not degrading. So if I could give this book a 4 1/2, strictly because I know the work the author put into this, I would. So if you’re looking for an easy read with characters that aren’t hard to follow, look no further! They are easy to love and easy to care for. One of the biggest issues they lacked, to me, was depth and plausible reactions to their situations. JD, you have done BEAUTIFULLY writing this book. I applaud and will continue to buy your books in the future. My BIGGEST recommendation is to definitely hire some form of an editor for any upcoming books. Or in turn, I will be happy to beta read for you. Should my opinion change of the book by the time I finish, I will happily get on here and say I was wrong, delete this review and post a different one. Until then…
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 20, 2022
H
Verified Purchase
Hannah Durham
Charlottesville, US
★★★★★ 5
this book set my soul ablaze! <3
Format: Paperback, Format: Paperback
"i had never really cared about the weather before, but now, clear skies meant everything to me, and i was grateful to see another calm morning." this book. this book! i loved the last storm so much. the writing style. the descriptions. the world-building. the characters. the plot twists. the tropes. the sexual tension. the—everything. everything was magic. the last storm follows our two main characters, ara and rogue, giving us dual POV from both characters (which i loved, btw). ara, a human girl who has been locked away in her father’s estate most of her life, just wants to see the world. all she dreams of is seeing what else is out there. but when her father announces her engagement, she knows that dream will become nothing more than just that—a dream. rogue, the fae king, is tired of the attacks being rained down on his people. in hopes of finding out the human king adon’s secrets, rogue infiltrates auryna’s borders. in his last resort to gain information, he visits the local pub. to his surprise, the general’s precious only child is sitting at the bar, drink round after round of mead. now he just needs to figure out how to take her without anyone noticing. first and foremost, let’s talk about the endless list of my favorite tropes and aspects that this book had. ›› enemies to lovers ›› fated mates ›› one bed ›› the chosen one ›› elemental magic ›› actually good and shocking plot twists!!! ›› badass female lead ›› morally-grey love interest ›› fae/human war ›› force proximity ›› touch her and die ›› who did this to you? ›› captor/captive ›› praise k!nk (panting profusely) “you are entirely the opposite of everything that i am, and i would gladly wear your shackles if it meant i could have you.” it’s been a long while since i read a book i liked this much. but i just loved this book. it set my soul ablaze. thank you to the author for writing this beautiful story and for blessing me with an eARC! i loved it so much that i immediately bought the paperback upon release! every aspect of this book was just beautiful. i was blown away by the way the world was described, the way feelings were portrayed, the way the elements were used in the fae’s magic. it just—AHHH! i just absolutely adored it all. i cannot wait for the second book to release next year! also the way he calls her “little storm” sets my heart on fire. this was a fast-paced read and if you are a lover of acotar, fbaa, deal with the elf king, or any other similar books, then please stop everything you’re doing and read this book right now. you won’t regret it. thank you again, jd linton, for giving me the privilege of reading your arc and for blessing this world with the world you created. <3 "something about him pulled me in, like a moth to a flame, and it felt as if i was just waiting for the inevitable burn that came with flying too close to the fire."
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2022
S
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Sean
Birmingham, US
★★★★★ 4
Fun, both heartwarming and heartbreaking
Format: Kindle
Only my second first person written selection, I am still getting used to that aspect, but unlike my first, I enjoyed that the story was told through both MCs. A great enemies to lovers, forced proximity, fated love etc, that resonated to me. There were some small twists that I could see coming, but also a few that I didn’t quite see until the characters were also seeing. Personally, I am more interested in the story than the spice, but with that said, it was well seasoned! I am kind of new to the spice world so I can’t say for sure how this would rate, but it definitely had some heat. I am very glad I happened across this author, and I do plan on also reading the next book….if nothing else, just to see for myself the “transformation” of the characters I’ve grown to love!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2024
H
Verified Purchase
Havinne Akins
Port Orchard, US
★★★★★ 5
😍😍 BEST DEBUT NOVEL EVER
Format: Paperback
I’m having trouble finding accurate words to describe the way this book made me feel, but I am going to do my best. To start off with basic elements, the character and world building are phenomenal. I feel a strong bond to not only the two main characters, Ara and Rogue, but to each and every character introduced throughout the book. The author did a stellar job of giving each of them unique personhood. All of the scenes are beautifully described. So much so that throughout the entirety of the book, I could see every scene: the towns, the castles, the meadows, the landscape. I have had difficulty with this and with distinguishing between outlying characters while reading in the past, but I did not have to think to remember details of world or character building because they flowed naturally within the story and were described well. I have read book series before that made me want to be a part of that world, but I actually felt like I got to step into Auryna and Ravaryn! The plot twists!! Although this is not a suspense novel, it still had me on a rollercoaster of emotions and on the edge of my seat from beginning to end. I haven’t cried actual tears over a book since I was in high school (and I’ve read a LOT). This book finally broke the floodgates in the final few chapters. Multiple times. And we love a good cliffhanger. It truly made me FEEL. THE SPICE is a solid 3.5/5. Some of the scenes had me flushed, some had me taking notes, some just had my jaw slack and my mouth hanging open. Bravo, JD Linton, bravo. The relationships: friendships, family, romantic, ALL of the relationships in this book have so much meaning. The author does a great job at making you feel the love, the anger, the peace, the frustrations, the safety, the familiarity, etc. between the characters. Ara and Rogue. I can not say enough and I also do not want to say too much. Just know that I feel like I know them both, to their core. I know what their childhood looks likes, their darkest moments, their biggest fears, their dreams and passions, what they want in life… The POV switches were seamless. I am so happy this author decided to let us see from both sets of eyes. I can not wait for book two after that cliffhanger. And there is SO much potential for at least one prequel, I can’t wait to see where this author goes! I hope this series continues and flourishes. Fingers crossed!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2022
T
Verified Purchase
Tracy and Christina
Cuba, US
★★★★★ 5
Amazing!
Format: Kindle, Format: Kindle
This book was phenomenal, I devoured it within a few days! For this being a debut novel, it is fantastic and I would’ve thought the author was a seasoned author. I have zero complaints about this book. Let me start by saying that the world building was phenomenal. I could picture everything in my head because of how detailed it was — that’s how good it was written. And I absolutely love the “captive/captor” trope so much, it’s become one of my favorite tropes, so I was pleasantly surprised to see that this book had that. I loved the banter between Rogue and Ara — they’re both snarky and witty, plus with the romantic tension, it made the dialogue that much better. Speaking of romantic tension, yes there is spice but not so much of it that it overrides the plot, which I loved. For me, this would probably be on the 3/5 level of spice. This book had a ton of plot twists and I thoroughly enjoyed it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2024

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