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Your cart is empty.Sterndrive transom seal repair kit 803099T1 is for MerCruiser Alpha One, Gen II sterndrives with exhaust bellows. Kit contains replacement hoses, seals, gaskets, bellows and hose clamps to seal opening in the transom for sterndrives. See your owner's manual or service manual for specific applications and replacement instructions.The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine original Equipment replacement engine parts, oils, and accessories, but also works to serve all original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.
Wicked_nature
Reviewed in the United States on February 27, 2025
Cost dose Match the product worked really well
Ryan Fuller
Reviewed in the United States on January 17, 2025
Worked great for my Mercury Alpha One
Greg Phillips
Reviewed in the United States on August 4, 2024
Quality parts...all bellows fit up nicely. No glue included with kit. Good value
t
Reviewed in Canada on July 25, 2024
Parts fit as expected.....good product
Scott Fuller
Reviewed in Canada on May 28, 2024
Drive bellows is too small on one side. Had to order another kit and spend more money as I already installed most of the other parts.
Henry
Reviewed in the United States on September 1, 2023
Bellows are a tough job. Always worth getting the OEM parts. Order some glue and the tools and get after it. I don’t love the new sealed bearing design but it’s the standard these days. Comes with the slug for the grease zerk so not much to complain about, just prefer to grease things despite it being an older concept.
Customer
Reviewed in the United States on May 11, 2023
Just recieved my package. Opened it up and everything is Engineered Marine Products Brand. Not one thing in the box was quicksilver and the hose was not molded. The oil hose was not included. Extremely let down. What a sham!
Jeff Murray
Reviewed in the United States on December 19, 2023
I always use Quicksilver parts on my boat, especially the Bellows kits. They fit as expected and since I keep my boat in the water all year, I sleep good at night knowing that I have these Bellows on my boat and it will be floating when I get to the dock.
George D. Smith
Reviewed in the United States on September 30, 2022
I made the mistake of purchasing a low cost "economy " kit of seals, bellows and components when I overhauled my MerCruiser Alpha One Gen 2 outdrive 2 years ago. This summer I open my engine compartment to find that it was full of water. When I examined the outdrive, I found that the Shift Boot had torn, allowing water to stream in through the transom. I also noticed cracks in the Exhaust and Drive Shaft Bellows. I was advised to purchase a Quicksilver kit which is OEM grade. Much more expensive but much higher quality and longevity. I also noticed a host of superior details over the inexpensive kit: The water transfer hose is molded to the correct shape to fit in the Bell Housing in the OEM level kit. The inexpensive kit's water hose is just a standard piece of hose that is more prone to collapsing. The hose clamp grounding straps on the OEM kit are riveted to the Bellows so that they cannot fall off during installation. The straps that come with the economy kit are separate and have a tendency to fall off during Bellow installation. This can effect the integrity of final joint strength especially as the glue will be compromised by repeated removal and install in attempting to get the straps to stay in place.You only have to have one premature failure using a inexpensive kit to justify the extra cost of the OEM level kit.My suggestion is to resist the urge to save money up front and invest in this better quality kit.
Piotr Zdaniewicz
Reviewed in Canada on March 17, 2021
Good quality product
Jennifer
Reviewed in the United States on July 18, 2020
This is a factory product (quicksilver is part of Mercury Marine Inc.). Kit comes with everything and is good quality. The bearing is a perma-lube style and the kit came with the plug to replace the old grease fitting. Also the bearing in my kit was SKF brand which in my opinion are the best bearings on the planet. The water hose is pre- bent which is nice for install. The only down side is the fact that the exhaust bellow is short when new and hard to stretch on the drive unit but that's just how it is. Price is awesome, would've cost twice as much to by separately at local marine shop. I would definitely by this kit again if needed.
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