SKU: 97730515170

Transom Seal Kit – Fits MerCruiser R/MR/Alpha One Gen I Stern Drives (Replaces 30-803098T1)

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Description

Transom Seal Kit – Fits MerCruiser R/MR/Alpha One Gen I Stern Drives (Replaces 30-803098T1)Transom Seal Kit Fits MerCruiser R MR Alpha One Gen I Stern Drives (Replaces 30 803098T1) This transom seal kit provides the essential components needed to service MerCruiser R, MR, and Alpha One Generation I stern drives produced from 1983 to 1991 (serial numbers 6225577 through 0D469858). It is engineered to meet or exceed OEM specifications for a reliable, leak free seal. This kit is a direct replacement for multiple industry part numbers, ensuring

Transom Seal Kit – Fits MerCruiser R/MR/Alpha One Gen I Stern Drives (Replaces 30-803098T1)

This transom seal kit provides the essential components needed to service MerCruiser R, MR, and Alpha One Generation I stern drives produced from 1983 to 1991 (serial numbers 6225577 through 0D469858). It is engineered to meet or exceed OEM specifications for a reliable, leak-free seal.

This kit is a direct replacement for multiple industry part numbers, ensuring wide compatibility and a straightforward installation process for a complete transom reseal and gimbal bearing replacement job.

  • Complete Service Kit: Includes all necessary bellows, gimbal bearing, gaskets, seals, and clamps for a full transom service.
  • Direct Replacement: Designed to replace Mercury Marine P/N 30-803098T1 and other equivalent aftermarket parts without modification.
  • Durable Construction: Made with high-quality rubber, plastic, 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
Mercury Marine 30-803098T1
Sierra 18-8205
Sierra 18-8217
GLM 21951
Mallory 9-72901
Redline RL8205

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 R/MR/Alpha One (Sterndrive) N/A 4-Stroke 1983-1991 30-803098T1 Serial #s: 6225577-0D469858
MerCruiser R/MR/Alpha One (Transom Assembly) N/A 4-Stroke 1983-1991 30-803098T1 Serial #s: 6216687-0D469858

Technical Specifications

Specification Value
Product Type Transom Seal Kit
Installation Direct replacement
Housing Material Rubber, metal, plastic
Housing Color Black
Other Technical Attributes For use with exhaust tube configuration

Package Contents

  • 1 x Heavy Duty Gimbal Bearing (Replaces 18-2100 / 30-60794A4)
  • 1 x U-Joint Bellows (Replaces 18-2751 / 60932A4)
  • 1 x Shift Cable Bellows (Replaces 18-2753-1 or 18-2753-2 / 74639)
  • 1 x Exhaust Tube (Replaces 18-2760 / 78458A1) Note: This exhaust tube uses a single hose clamp on the transom side, which may result in a louder exhaust sound than the OEM dual-clamp setup.
  • 1 x Water Intake Hose, 3/4" (Replaces 18-3601 / 32-32461)
  • 1 x Water Intake Hose, 5/8" (Replaces 18-3602 / 32-41725-33)
  • 1 x Outdrive Mounting Gasket Kit (Replaces 18-2743 / 27-94996-2)
  • 2 x Bell Housing Gasket (Replaces 18-2840 / 27-35982)
  • 1 x O-Ring (Replaces 18-7153 / 25-25439)
  • 1 x O-Ring (Replaces 18-7117 / 25-35027)
  • 1 x O-Ring (Replaces 18-7170 / 25-33504)
  • 2 x Hose Clamp (Replaces 18-7310)
  • 1 x Hose Clamp (Replaces 18-7312)
  • 1 x Bellows Clamp (Replaces 18-7321 / 54-38863)

Installation Guide

  1. Safety First: Disconnect the boat's battery before starting any work.
  2. Remove Drive: Carefully detach and remove the MerCruiser stern drive unit according to the manufacturer's service manual.
  3. Disassemble Transom Components: Remove the old bellows (U-joint, shift, and exhaust), gimbal bearing, and water hoses from the transom housing.
  4. Clean Surfaces: Thoroughly clean all mounting surfaces on the transom and bell housing, removing any old gasket material or sealant.
  5. Install Bearing: Use a gimbal bearing driver tool to properly install the new heavy-duty bearing into the gimbal housing.
  6. Install Bellows: Install the new U-joint, shift cable, and exhaust bellows. Ensure they are correctly seated and secure all connections with the provided clamps.
  7. Install Hoses and Gaskets: Fit the new water intake hoses and place the new gaskets and O-rings in their designated positions. Use appropriate marine-grade adhesive where required.
  8. Reinstall Drive: Carefully reinstall the stern drive unit, ensuring proper alignment of the driveshaft and shift cable.
  9. Final Checks: Reconnect the battery. Once in the water, check for any leaks around the transom assembly and test the drive for proper shifting and operation.

Troubleshooting & FAQ

How do I confirm this kit fits my MerCruiser stern drive?
This kit is compatible with MerCruiser R, MR, and Alpha One Generation I models from 1983 to 1991. To ensure a perfect match, verify your drive's serial number falls within the range of 6225577 to 0D469858 for sterndrives or 6216687 to 0D469858 for transom assemblies.

What is the difference between this kit's exhaust setup and the original OEM part?
The exhaust tube in this kit is designed for a single hose clamp on the transom side, which is a common aftermarket configuration. This may result in a slightly louder exhaust noise compared to the original dual-clamp OEM setup, but does not affect performance.

What are the signs that my transom seal kit needs to be replaced?
Common signs of failure include water leaking into the bilge area through the transom, a roaring or grinding noise from the gimbal bearing when turning the wheel, or visible cracks and deterioration in the U-joint or shift bellows.

Is everything I need for the job included in this kit?
This kit provides a comprehensive set of bellows, the gimbal bearing, gaskets, O-rings, and clamps needed for a typical transom service. You will still need appropriate marine-grade sealant/adhesive and standard mechanic's tools for installation.

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 shipping—typically 5–15 days worldwide—and 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 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: 97730515170

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I have an earlier model that is still really good and this one is even better. I didn't know it was possible, but Foodville has outdone themselves with this model. I love the led blue digital display at the top that shows the speed selected, and % remaining charge; there are seven speeds and I have not even gotten past the third speed. The first push of the power button, simply illuminates the blue digital display, and speed of zero; the next push shows 1, as the unit powers on and every push after increases the speed. The off button, above the on button, when pushed shows zero, and the unit spins down. It is really nice to see the confirmation that it is off, as it spins down. The amazing part is the length of charge. I have been using it for weeks and it is still over 80% charge, and the handle is still slender, not like others that get larger as capacity increases. This one is slender, lightweight and so powerful. The stand not only holds the frother, but the accessories too. I have used the whisk to scramble eggs and it does a very credible job. I can't say enough good about this frother/mixer, but it is the best I have used and I have several. The company is known for their outstanding warranty and customer service. I use speed one or two for frothing and the third speed can sometimes risk such action as to spin the mix over the rim of my frothing pitcher, so it really means business. Buy it, you won't regret it and will never want or need another. It's just the best!
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Reviewed in the United States on March 23, 2026
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T.
Carnegie, US
★★★★★ 4
Excellent product, excellent customer service, reasonable price
FoodVille has done it again, creating another great milk frother. This is the third FoodVille frother I've owned, the first two being MF02 models. After wearing my first one out after years of use, I purchased my second MF02 about a year ago, and it's still going strong. However, when I learned they had a new and improved model, I decided to buy it to try it, even though my second one still works great. The MF06 is a definite improvement, with the attachments now being all metal to avoid the potential for breakage when removing them repeatedly, the addition of the digital battery life and speed display, an improved stand, and nine versus three speed settings. There was one thing I had to quickly get used to, and that is the separate on/off button. On my last FoodVille milk frother, there were three speeds, and each speed had only one button that turned it both on and off. This MF06 has one button that controls the speed setting and one button that turns it off. The first few times I used it, I forgot about the separate off button and hit the speed button again (like with the previous one), turning it up higher instead of turning it off, causing my coffee to overflow from the cup. That isn't a design flaw, just a different design that I'm now accustomed to. Honestly, the three speeds were already plenty strong and effective for my purposes, but having nine is just an improvement, since I'm sure some people use this for more than just coffee. I use mine to blend powdered creamer and protein into almond milk before adding coffee, and the MF06 is very effective at getting it blended as smoothly as I want it. Also, I've now been using the new model for six weeks, and even with the battery power being around 75%, I haven't noticed much, if any, decrease in its power and effectiveness, and I haven't had to recharge it yet. The only reason I'm giving it four instead of five stars is one change in the design that I don't like, which is the angled head where the digital display is. While many people may love the stand that comes with this product, I personally don't have room for it and don't use it, and I cannot set this frother on the end of its handle to act as a base like I do with the MF02. If I wanted to leave it sitting on the counter, it won't stand upright on its end unsupported, so I would be forced to use the stand if I didn't have a specific storage container set in a wire metal basket on the counter where this will rest at an angle between two canisters and against the side of the basket. Changing the angled end on the handle to a flat end that will stand upright would be my only recommendation if/when FoodVille decides to update this product again. I also have to say that one reason I chose to order the MF06 when I didn't really need a new milk frother yet is that their customer service has been amazing. The first product I bought from them years ago had some sort of issue shortly after I got it (I don't even remember now what it was), and Elisa very promptly addressed the issue and resolved my problem with excellent communication. When a plastic component on an attachment on the older model broke, she promptly sent me a replacement. For me, FoodVille has delivered high quality products and excellent customer service, honors their warranty, and seems very interested in customer feedback to help them improve their products. For reviewers who said they had an issue shortly after buying it and gave a low rating, I suspect they didn’t even try to contact FoodVille for a replacement, because they honor their warranty beyond Amazon’s 30 days.
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Reviewed in the United States on April 4, 2026
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Carmie
Massapequa, US
★★★★★ 5
Perfect for Bulletproof Coffee, Shakes, and Daily Use
I have been using the previous FoodVille frother since 2024 and I still rely on it, but the MF06 is definitely a real upgrade. The build quality is better, it is simple to use, and the sturdier attachments feel more durable. I love the single‑button variable speed control! The new digital display is another nice improvement, and I find the charge lasts longer, which by the way, it charges by USB so no batteries needed. I use it daily for bulletproof coffee, protein shakes, and for mixing other supplements. Customer service has been excellent and always responsive. I am very happy with this purchase. For the price and performance, it is an excellent choice!
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Reviewed in the United States on April 30, 2026
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Daniela Alvarado
Omaha, US
★★★★★ 5
The best hand frother
Color: Pure White, Color: Pure White
UPDATE: I bought this hand mixer in July 2025 and used it almost every day. It’s an incredibly good product, durable, reliable, and very easy to use. It comes with a charger, and the battery lasts a long time also it included a metal stand to hold it. Sadly it stopped working about a week ago (April 2026), but the best part is that it comes with a two-year warranty. It was very easy to contact customer support via email, they responded the same day, and I received a free replacement just a few days later. The new unit is the same product with the same accessories, but instead of just a stand, it now comes with a charging base, which is a fantastic and very practical upgrade. This is the best hand frother I’ve ever purchased. Even after almost a year of use, the accessories are still in perfect condition, and the customer service was excellent. I 100% recommend it.
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Reviewed in the United States on May 2, 2026
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Jenny Aberle
Lake Worth, US
★★★★★ 5
Great product!
Color: Ultra Violet
This is the best brother out there! Works like a charm the charge stays for weeks and it really has power. Also customer service with this item is really great! Don't hesitate to purchase this item!
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