SKU: 1836640531

Thermostat Housing Assembly – Fits Mercury Marine 65-150 HP Outboards (Replaces 892864T06, 8M0090819)

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Description

Thermostat Housing Assembly – Fits Mercury Marine 65-150 HP Outboards (Replaces 892864T06, 8M0090819)Thermostat Housing Assembly Fits Mercury Marine 65 150 HP Outboards (Replaces 892864T06, 8M0090819) This thermostat housing assembly is engineered for Mercury Marine 65 150 HP 4 stroke outboard engines from 2006 and newer. It is a complete bolt on solution for models including the 75, 80, 90, 100, 115, and 150 EFI series, ensuring proper engine temperature regulation. This assembly is a direct replacement for multiple OEM and aftermarket part numbers,

Thermostat Housing Assembly – Fits Mercury Marine 65-150 HP Outboards (Replaces 892864T06, 8M0090819)

This thermostat housing assembly is engineered for Mercury Marine 65-150 HP 4-stroke outboard engines from 2006 and newer. It is a complete bolt-on solution for models including the 75, 80, 90, 100, 115, and 150 EFI series, ensuring proper engine temperature regulation.

This assembly is a direct replacement for multiple OEM and aftermarket part numbers, including Mercury 892864T06, 8M0090819, 892864A06, and Sierra 18-3633 and 18-3635.

  • Complete Kit: Includes the thermostat, housing, O-ring, and clamp for a full replacement.
  • Installation: Designed for a direct bolt-on installation with no modifications required.
  • Material: Constructed from marine-grade metal to resist corrosion and ensure durability.

Part Number Cross-Reference

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

Brand Part Number Superseded By
Mercury Marine 892864A06 892864T06 / 8M0090819
Mercury Marine 892864T06 8M0090819
Mercury Marine 8M0090819
Sierra 18-3633
Sierra 18-3635

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Mercury 65 JET 65 4-Stroke 2006 and newer 892864T06/8M0090819
Mercury 75 EFI 75 4-Stroke 1B366823-2B094995 892864T06/8M0090819
Mercury 75 EFI SEAPRO 75 4-Stroke 2006 and newer 892864T06/8M0090819
Mercury 80 JET 80 4-Stroke 2006 and newer 892864T06/8M0090819
Mercury 80 EFI 80 4-Stroke 0P459572-2B094995 892864T06/8M0090819
Mercury 90 EFI 90 4-Stroke 1B366823-2B094995 892864T06/8M0090819
Mercury 90 EFI SEAPRO 90 4-Stroke 2006 and newer 892864T06/8M0090819
Mercury 100 EFI 100 4-Stroke 0P459572-2B094995, 1B366823-2B094995 892864T06/8M0090819
Mercury 115 EFI 115 4-Stroke 1B366823-2B094995 892864T06/8M0090819
Mercury 115 Pro XS 115 4-Stroke 2006 and newer 892864T06/8M0090819
Mercury 115 EFI SEAPRO 115 4-Stroke 2006 and newer 892864T06/8M0090819
Mercury 150 EFI 150 4-Stroke 1B905505 and up 892864T06/8M0090819

Technical Specifications

Specification Value
Product Type Thermostat Housing Assembly
Installation Direct bolt-on
Fuel Type Gasoline
Connection Bolt-secured
Housing Material Marine Grade Metal
Operating Temperature 122°F (50°C) thermostat rating
Other Technical Attributes Includes thermostat, housing, o-ring, and clamp

Package Contents

  • 1 x Thermostat with housing (replaces 8M0090819)
  • 1 x O-ring (replaces 8M005958)
  • 1 x Clamp (replaces 888988008)

Installation Guide

  1. Safety First: Disconnect the battery and ensure the engine is completely cool before starting.
  2. Drain Coolant: Place a drain pan under the engine and carefully drain the cooling system.
  3. Locate Housing: Identify the thermostat housing on the engine block.
  4. Disconnect Hoses: Loosen the clamp and remove the hose connected to the housing.
  5. Remove Old Housing: Unbolt and remove the old thermostat housing assembly. Note the orientation of the parts.
  6. Clean Surface: Thoroughly clean the mounting surface on the engine block, removing any old gasket material or sealant.
  7. Install New Assembly: Place the new thermostat and O-ring in the new housing and mount it onto the engine block.
  8. Secure Bolts: Tighten the bolts evenly and to the manufacturer's recommended torque specifications.
  9. Reconnect Hose: Reattach the coolant hose and secure it with the new clamp.
  10. Refill Coolant: Refill the cooling system with the appropriate coolant mixture.
  11. Check for Leaks: Reconnect the battery, start the engine, and let it warm up. Carefully check for any coolant leaks around the new housing.

Troubleshooting & FAQ

Q: How do I confirm this thermostat housing fits my specific engine? A: The most reliable method is to match your engine's serial number to the ranges provided in the compatibility table. You can use the linked Mercury Serial Number Guide to find your serial number. Cross-referencing the part number (892864T06 or 8M0090819) stamped on your old part also helps ensure a match.

Q: What are the symptoms of a failing thermostat or housing? A: Common signs include engine overheating, engine temperature running too low, erratic temperature gauge readings, visible coolant leaks from the housing, or steam from the engine compartment.

Q: What is the operating temperature of the included thermostat? A: The thermostat in this assembly is rated to open at 122°F (50°C) to ensure your engine reaches its optimal operating temperature quickly and maintains it consistently.

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: 1836640531

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4.6 ★★★★★
Based on 24 reviews
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Product Reviews
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Ashlee
Phoenix, US
★★★★★ 4
A Decent Fae Romance
Format: Kindle
** 3.5 Stars rounded up to 4 ** First off I want to say that I found the author, J. D. Linton, on TikTok right before the release of the sequel. I bought the first 2 books to support her release, so congrats to her for the release of the sequel! Overall, I liked the story & plot, I liked the characters, and I liked the spice. The downfalls: not enough development between the characters for the romance, and it leaned a little heavy into the tropes. A lot of stuff is told to you, which could have been used as devices to drive the plot and emotions of the characters. 🛑🛑 Mild Spoilers ahead, I tried to hide the obvious ones 🛑🛑 This is very obviously a fated mates, which is a trope I usually really enjoy. But I wish the relationship between Ara & Rogue had much more development before it's realized that they're mates, instead of Rogue knowing almost immediately and using it for nefarious purposes (at least in the beginning before they get to know each other). By revealing this within the first quarter of the book, I feel like it leaves less room for them to fall for each other organically (albeit with help from the mating bond) and they love each other because of the mating bond. I was disappointed as soon as Rogue know (literally only 5% in) and I literally made a note: "As much as II love a good mating trope, I wish we had to work for it a little more. Where's the fun in just telling us?" I believe that by holding out and feeding the reader snippets of a potential bond, it would've been more rewarding as a reader. I also wish there was more world building - we are told of a war between human & fae but don't get to really experience any of it. Ara is sheltered in her human home, then sheltered in Rogue's castle. There's bits and pieces about what the war has done on either side - but we're more told of the aftermath and don't really experience any of it. Ara's father is supposed to be the king's #1 general - yet he is at home with his family & with Ara for the first couple chapters. Her, her family, nor her village seem to be affected by the 10 year war going on on their borders. I wish there was a little more setup to make this conflict - an actual war - feel more than a skirmish between fighting territories. Linton could also be a little repetitive - with the biggest culprit being when Ara is upset she "brings [her] knees to [her] chest]" and either sits like that or cries. Every time she is upset this phrase is mentioned. I would get it if this was her crutch, or how she copes with grief and stress, but that should be explained why she does it so often or it becomes repetitive. I started to get annoyed with how often she would sit like this solely because it happens every couple chapters. However, I did really like the spice. I love an enemies to lovers trope, especially when it results in spicy scenes. The spicy scenes weren't anything new, but they were fun. Wish there were more but that could also just be me - there is no such thing as too much spice 😂 Would I read again? Probably not, I'm super picky with rereads. Although I did genuinely enjoy my first read through! Will I continue the series? Probably, at least for the sequel. As for #3, kind of depends on where I am with my TBR once that is released All in all an enjoyable, fast paced read
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Reviewed in the United States on March 8, 2024
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Verified Purchase
Ashton Taylor
Carnegie, 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…
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Reviewed in the United States on November 20, 2022
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Verified Purchase
Hannah Durham
Fort Morgan, 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."
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Reviewed in the United States on November 15, 2022
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Verified Purchase
Sean
Draper, 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
Fort Morgan, 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!
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Reviewed in the United States on December 5, 2022

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