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Description
MerCruiser Alpha 1 Gen 2 Transom Bellows Repair Kit – Fits MerCruiser Alpha One Generation 2 Stern Drives (Replaces 30-803099T1)MerCruiser Alpha 1 Gen 2 Transom Bellows Repair Kit Fits MerCruiser Alpha One Generation 2 Stern Drives (Replaces 30 803099T1) This transom bellows repair kit fits MerCruiser Alpha One Generation 2 stern drives manufactured from approximately 1991 and up, specifically those with serial numbers starting from 0D469859 and later. It is designed for use with outboard stern drives and provides marine grade materials resistant to water, oil, and fuel.
MerCruiser Alpha 1 Gen 2 Transom Bellows Repair Kit – Fits MerCruiser Alpha One Generation 2 Stern Drives (Replaces 30-803099T1)
This transom bellows repair kit fits MerCruiser Alpha One Generation 2 stern drives manufactured from approximately 1991 and up, specifically those with serial numbers starting from 0D469859 and later. It is designed for use with outboard stern drives and provides marine-grade materials resistant to water, oil, and fuel.
Direct replacements include Mercury part numbers 30-803099T1 and 803099T1, as well as aftermarket equivalents from GLM (21960) and Sierra (18-8206).
- Includes U-Joint, Exhaust, and Shift Cable Bellows Assemblies
- Compatible with various MerCruiser Alpha One Gen 2 models
- Installation via transom mount with clamp-style fittings
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Mercury | 30-803099T1/803099T1 |
| GLM | 21960 |
| Sierra | 18-8206 |
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 | All | Both | 1991-1995 | 30-803099T1 | Serial numbers: 0D469859 through 0F679999 |
| MerCruiser | Alpha One Gen 2 | All | Both | 1996-1997 | 30-803099T1 | Serial numbers: 0F680000 through 0K999999 |
| MerCruiser | Alpha One Gen 2 | All | Both | 1998 and up | 30-803099T1 | Serial numbers: 0L100040 and up |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Transom Bellows Repair Kit |
| Installation | Outboard Stern Drive |
| Connection | Transom Mount |
| Housing Material | Neoprene (Bellows), Stainless Steel (Clamps) |
| Housing Color | Black |
| Dimensions | 13.9 8.4 6.3 inches (353.1 213.4 160 mm) [package dimensions] |
| Weight | 5.00 lbs (2.27 kg) |
| Fitting Type | Clamp-style |
| Other Technical Attributes | Marine-grade materials resistant to water, oil, and fuel |
Package Contents
- 1 U-Joint Bellows Assembly (816431A1)
- 1 Exhaust Bellows Assembly (18654A1/8M0124227)
- 1 Bearing Assembly (30-862540A3/30-879194A01/30-8M2010910)
- 1 Shift Cable Bellows Assembly (74639A2)
- 1 Water Hose (32-4172533/32-8M0062309/32-8M0109048)
- 1 Alpha Outdrive Mounting Gasket Kit (27-94996Q2/27-8M0091545)
Installation Guide
Ensure the engine is turned off and cooled before beginning installation. Remove the old bellows assemblies carefully, inspecting the surrounding area for damage. Clean the transom mount surfaces thoroughly to ensure a secure seal. Position the new U-Joint bellows into place and secure it with the provided clamps. Install the exhaust bellows assembly, aligning it properly to avoid exhaust leaks. Fit the bearing assembly and tighten clamps to manufacturer torque specifications. Attach the shift cable bellows assembly carefully, ensuring smooth cable movement. Connect the water hose and check for proper routing without kinks. Install the Alpha outdrive mounting gasket kit, verifying correct positioning. Double-check all clamps and hoses for security. Start the engine and inspect for leaks or unusual noises around the installation area. Make final adjustments if necessary and confirm proper function before use.
Troubleshooting & FAQ
- How do I confirm this fits my engine? Check your engine’s serial number against the compatible ranges listed in the product details or consult the Mercury Serial Number Guide linked above.
- What are the differences versus OEM parts? This is an aftermarket replacement built to OEM specifications with marine-grade materials and quality controls in an ISO9002-certified facility.
- How often should I replace the transom bellows? Inspect regularly for cracks or leaks and replace as needed based on wear or damage to prevent water intrusion and corrosion.
- What are common signs of failure? Water leaks near the transom, exhaust leaks, or a rough shifting cable can indicate bellows damage.
- OEM vs. Aftermarket? 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.
- How fast do you ship and how much does it cost? We offer fast global shipping15 days worldwideand standard shipping is free. Expedited options are available at checkout depending on your location.
- What is your warranty and return policy? 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 515 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
4.3 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 4
Sweet Romance
Format: Paperback
This was a sweet love story between two women who are both dealing with some baggage, and figuring out what moving forward looks like. I enjoyed both of the characters and their chemistry. Also really enjoyed the supporting characters, including the animals. Listening to the audiobook, there were some moments where I had to stop and figure out which character was narrating because the voices didn’t sound distinct enough. This only happened a few times, and probably wouldn’t have occurred if I’d been reading the physical copy. Overall, a sweet and enjoyable romance with some depth and great side characters.
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Reviewed in the United States on January 1, 2026
★★★★★ 5
Adorable!
Format: Paperback
This book was completely adorable. I loved Thea and Courtney’s story, and the background from the unlikely animal friends to Colin Firth Pride and Prejudice references. Whilst a little turbulent at times with traumatic backstories, I’m glad they got their GHEA, and I loved their journey, and secondary and tertiary characters along the way. It made me smile when I was in a place of exhaustion, so I really loved it.
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Reviewed in the United States on November 11, 2025
★★★★★ 3
Not great but not bad!
Format: Audiobook
I loved the audio and I'm so glad there were two narrators!
I really loved the deconstruction rep in this book. It spoke to me in ways that felt real and authentic. I also liked the way the migraine/chronic illness was handled as well.
The reason this is a 3 star to me is that I can't remember the characters names and I just finished this book. The first 50% was pretty forgettable. It was hard for me to get into that first half.
The second half however, I really enjoyed! Courtney and Thea (yes I did just have to look up their names) could have used more fleshing out. Courtney's ex's threats felt like a nothing burger in the end and Courtney's running also didn't hit quite like I wish it had.
The last 50% things finally get moving. These characters finally start sharing with each other and being open and vulnerable but there is still a big secret that get revealed that throws a wrench into the whole thing.
Overall I did enjoy it!
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Four and a half stars for this sapphic romance
Format: Paperback
I’m giving this book four and a half stars. There was a lot I really loved about it. The banter between the main characters is lovely, and there were several scenes that are just adorable. They’re complex characters though with their flaws and histories. They have depth. And how they react in a situation isn’t how you might react, but it’s right for that character. It felt truthful and in many ways relatable. I’ve got enough religious trauma that I can definitely relate, and although I’ve never been a catholic, I have what I think of as catholic guilt…in that I feel guilty for cutting my family out of my life despite the death threats, hateful comments, and constant hit my self esteem and mental health takes. I can even understand hiding physical health issues, because people definitely do treat you differently, also there’s trauma that goes back there too.
I loved the play of the word stars used in the title, and how it fits both main characters so well. It’s super clever.
I know some people were disappointed at this story, and I have to say that it left me going into the book feeling down about it, but instead I really enjoyed it (minus the breakup/not breakup). The ending was incredibly satisfying for me.
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Reviewed in the United States on October 2, 2025
★★★★★ 4
Entertaining
Format: Kindle
At first glance, Andie Burke’s With Stars in Her Eyes might seem like just another lighthearted romance, but it offers far more than shy smiles and meet-cute banter. This is a story built in layers, and readers will relish uncovering each one. Beneath its charm and swoon-worthy chemistry lies a thoughtful, emotionally resonant exploration of identity, vulnerability, and the courage to embrace second chances. Quick-witted, tender, and irresistibly romantic, With Stars in Her Eyes shines with both humor and heart.
The story’s greatest strength lies in its characters, two women shaped by their resilience, history, and courage. Burke writes Courtney and Thea with such empathy that their inner lives feel as vivid as their love story. Courtney, once a celebrated cellist, carries the weight of chronic illness and public disappointment. Despite her setbacks, she’s learning to trust her body—and herself—again. Thea, a piercer and photographer rebuilding her life after burnout, searches for inspiration to reignite her creative spark. When their paths cross, their connection feels less like coincidence and more like fate—two people meeting at the exact moment they’re ready to be seen. Their relationship unfolds as a quiet kind of healing, an emotional duet where each helps the other find her rhythm again. Burke captures that process with tenderness and truth, reminding readers that love isn’t about fixing what’s broken; it’s about growing through the cracks together.
Beyond her skill with character development, Burke proves herself a confident storyteller who knows how to turn tropes, tension, and structure into driving forces rather than predictable shortcuts. She takes these familiar romance conventions and transforms them into genuine sources of momentum and emotional depth. The meet-cute alone—a bearded dragon, a burst of chaos, and instant chemistry—sets the tone perfectly. It’s quirky, funny, and unforgettable. From there, Burke builds in the tension of a secret-identity plot. After her career implodes onstage during a terrifying migraine, Courtney retreats from the public eye to reinvent herself. But her carefully guarded anonymity is at risk, and that fear of being found out adds delicious suspense to her growing connection with Thea, who’s searching for her own sense of belonging.
Dialogue is another strong suit for Burke. The banter between Courtney and Thea feels effortless; it’s quick, clever, and full of unspoken emotion. Each exchange lands with that perfect mix of humor and hesitation, as if the characters are circling truths they’re not quite ready to say aloud. Burke strikes a graceful balance between wit and vulnerability, allowing moments of reflection to surface naturally. Nothing feels staged or heavy-handed; it’s all quietly sincere. Additionally, her prose is lush without being overdone, capturing atmosphere and intimacy in equal measure. Most striking, though, is how Burke understands that love doesn’t erase pain; it reshapes it, softening the edges and showing that healing often unfolds alongside joy.
What really makes With Stars in Her Eyes resonate, though, is its depth of feeling. Burke quietly knits it into the story, not just through the external drama but the quiet, personal battles that define her characters. Courtney’s struggle with chronic illness and the lingering sting of public failure feel heartbreakingly real, and her journey toward self-acceptance is handled with such compassion that it’s impossible not to root for her. Thea’s story, too, carries its own weight; her fight to rekindle her creative spark and believe in herself again mirrors the vulnerability of starting over. When these two women meet, their connection feels like a kind of healing in motion: messy, honest, and profoundly human. Burke finds beauty in that process, showing that love doesn’t make the past disappear but softens it. In the end, it gives both women the courage to move forward and rediscover who they are.
Final remarks…
Ultimately, With Stars in Her Eyes isn’t just a cozy romance; it’s a tale of love, healing, and starting anew. Through her tender yet fresh storytelling, Burke invites readers to find beauty in rediscovering joy after heartbreak. The result is an emotionally rich, deeply satisfying story, perfect for readers who crave meaningful happily ever afters.
Strengths…
Effective use of romance tropes
Storytelling filled with emotional depth and relatability
Well-developed characters
Rich character history
Character chemistry
Engaging tone and style
Smooth pacing
Inclusion of deeper themes
Witty and engaging dialogue
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Reviewed in the United States on October 18, 2025