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Description
Transom Seal Repair Kit – Fits MerCruiser Alpha One Gen 2 (Replaces 803099T1)Transom Seal Repair Kit Fits MerCruiser Alpha One Gen 2 (Replaces 803099T1) This transom seal repair kit provides all the necessary components to service MerCruiser Alpha One Gen 2 sterndrive units manufactured from 1991 and up. It is designed to meet or exceed OEM specifications for a reliable, long lasting repair. This kit serves as a direct replacement for MerCruiser part number 30 803099T1, Sierra 18 2600, and Quicksilver 803099T1, ensuring a
Transom Seal Repair Kit – Fits MerCruiser Alpha One Gen 2 (Replaces 803099T1)
This transom seal repair kit provides all the necessary components to service MerCruiser Alpha One Gen 2 sterndrive units manufactured from 1991 and up. It is designed to meet or exceed OEM specifications for a reliable, long-lasting repair.
This kit serves as a direct replacement for MerCruiser part number 30-803099T1, Sierra 18-2600, and Quicksilver 803099T1, ensuring a precise fit and restoring the integrity of your vessel's transom assembly.
- Complete Repair Solution: Includes all required bellows, gaskets, and bearings for a comprehensive transom service.
- Direct Fitment: Engineered as a direct replacement for original components on Alpha One Gen 2 drives (1991+).
- Durable Construction: Made with high-quality rubber and metal components to withstand the harsh marine environment.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| MerCruiser | 30-803099T1 / 803099T1 |
| Quicksilver | 803099T1 |
| Sierra | 18-2600 |
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 |
|---|---|---|---|---|---|---|
| MerCruiser | Alpha One Gen 2 | Various | 4-Stroke | 1991-up | 30-803099T1 | Complete transom seal repair kit |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Transom Seal/Bellows Repair Kit |
| Installation | Direct replacement for original components |
| Connection | Transom to drive shaft and exhaust |
| Housing Material | Rubber/elastomer bellows with metal components |
| Housing Color | Black |
| Dimensions | Kit packaged dimensions: 353.1 × 213.4 × 160 mm (13.9 × 8.4 × 6.3 in) |
| Weight | 2.27 kg (5 lbs) |
| Fitting Type | Direct OEM fit |
| Thread Size | Various (matches OEM specifications) |
| Other Technical Attributes | Complete kit for transom seal repair |
Package Contents
- 1 x U-Joint Bellows Assembly (Replaces 816431A1)
- 1 x Alpha Exhaust Bellows (Replaces 8M0124227/18654A1)
- 1 x Gasket (Replaces 27-8M0091545/27-94996Q2)
- 1 x Bearing Assembly (Replaces 30-8M2010910/30-879194A01/30-862540A3)
- 1 x Hose-0.250 ID × 0.50 OD × 9.50 LG (Replaces 32-8M0062593/32-4172533)
- 1 x Water Hose (Replaces 32-8M0109048/32-8M0062309)
- 1 x Shift Cable Bellows Assembly (Replaces 74639A2)
Installation Guide
- Disconnect the boat's battery before starting any work.
- Remove the sterndrive unit from the transom assembly according to the manufacturer's service manual.
- Carefully detach the old U-joint, exhaust, and shift cable bellows from both the bell housing and the transom.
- Remove the old gimbal bearing. A slide hammer or specialized bearing puller tool is typically required for this step.
- Thoroughly clean all mating surfaces to remove old sealant, corrosion, and gasket material.
- Install the new gimbal bearing into the gimbal housing, ensuring it is properly aligned and fully seated.
- Install the new shift cable bellow, ensuring a secure fit on both ends.
- Apply a thin layer of bellows adhesive to the mounting surfaces and install the new exhaust and U-joint bellows. Secure them with clamps.
- Install the new water intake hose and trim sender limit switch components if included.
- Reinstall the sterndrive unit, carefully aligning the driveshaft with the gimbal bearing and engine coupler.
- Tighten all fasteners to the specified torque. Reconnect all systems and check for leaks in a test tank or on the water.
- Note: Professional installation is highly recommended for this procedure due to its complexity.
Troubleshooting & FAQ
Q: How do I confirm this kit fits my Alpha One Gen 2?
A: This kit is specifically designed for all MerCruiser Alpha One Gen 2 sterndrives manufactured from 1991 onwards. To be certain, you can cross-reference your existing part numbers with those listed in our cross-reference table, such as MerCruiser 30-803099T1.
Q: What are the signs that my transom seals need replacing?
A: The most common indicators of failing bellows are visible cracks or perishing of the rubber, water intrusion into your boat's bilge, or a persistent roaring/grinding noise from the gimbal bearing, especially when turning the sterndrive.
Q: How often should I replace the bellows in this kit?
A: We recommend a thorough inspection of all bellows annually. A typical replacement interval is every 3-5 years, although this can be shorter if the boat is used frequently in saltwater or stored in harsh environmental conditions.
Q: Is this an OEM kit?
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:
- 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
4.5 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 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
★★★★★ 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!
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Reviewed in the United States on May 23, 2024
★★★★★ 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
★★★★★ 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.
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Reviewed in the United States on November 13, 2024
★★★★★ 4
High on Tropes and Satisfaction
Format: Kindle
This is a great Romantasy book full of action, adventure, and everything you look for in this genre.
I won’t lie: it does kinda feel like the author found every common trope from every successful book of this kind and threw them all into this novel. But if it ain’t broke, don’t fix it. Especially in romance, there’s a large audience who has specific expectations, and they want them every time. Nothing wrong with that and many times I’m one of them.
I have no idea what defines a spoiler honestly, so
spoiler alert!!!!!!!
Tropes include:
Only one bed at the inn/bar
Dissatisfaction with life before hunk appears
Lost royalty
The chosen one
Montage of dress up time followed by shocked hunk
Forbidden romance between two from rival peoples
Power that cannot be controlled, simply guided/asked
Gathering intel at the inn/bar
FMC who knows how to fight/use weapons well
There’s probably more but no need to list them all.
Good story and I would recommend!
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Reviewed in the United States on June 14, 2024
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