Boat bellows are essential flexible rubber components used in the stern drive system to protect critical parts from water intrusion and wear. They enclose and seal the exhaust, shift cable, and u-joints, preventing leaks and ensuring smooth operation of the outdrive.
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1-2 weeks delivery time Price incl. 19% VAT The Gear Housing Seal Kit designed for Yamaha outboard motors is crucial for maintaining optimal performance by ensuring a proper seal to prevent leaks. It is compatible with Yamaha models including 4HP, F4, and 5HP from various years, and is branded by Sierra, ensuring quality and reliability.
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€ 42,01
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1-2 weeks delivery time Price incl. 19% VAT This Gear Housing Seal Kit for Yamaha outboard motors guarantees compatibility and reliability for specific models, including 20HP and 25HP engines from the 1996-2002 range. It is interchangeable with products from Mallory and other Yamaha models, and is branded by Sierra, providing assurance of quality.
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€ 36,36
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1-2 weeks delivery time Price incl. 19% VAT The set of 2 Thermostat Seals for Mercruiser, OMC, and Volvo-Penta engines is essential for proper temperature regulation, enhancing engine performance and longevity. This set includes original references for various models, ensuring compatibility with multiple engines and is branded by Sierra.
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€ 4,82
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1-2 weeks delivery time Price incl. 19% VAT The Sierra Valve Cover Gasket is designed for compatibility with several engine models, providing a reliable seal to prevent leaks and maintain performance. It is interchangeable with multiple brands, ensuring a dependable fit and is branded by Sierra for quality assurance.
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€ 27,39
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1-2 weeks delivery time Price incl. 19% VAT This water pump seal is compatible with Mercruiser, OMC, and Volvo Penta engines, ensuring reliability and performance. It references several original parts and is suitable for models including 2.5L, 3.0L, and others, with a product number of 18-0327.
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€ 3,11
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1-2 weeks delivery time Price incl. 19% VAT The rocker cover seals are designed for various Mercruiser, OMC, and Volvo Penta models, providing an enhanced engine sealing solution. These seals reference multiple original parts and fit models such as 2.5L and 3.0L/X, with a product number of 18-0347.
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€ 20,57
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1-2 weeks delivery time Price incl. 19% VAT This marine valve cover gasket is specifically engineered for Ford 302/351 CID engines, offering a tight seal to prevent leaks. It replaces various original parts and is branded by Sierra with a product number of 18-0352.
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€ 13,73
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1-2 weeks delivery time Price incl. 19% VAT The thermostat seals are crucial for maintaining optimal engine temperature in Mercruiser, OMC, and Volvo Penta engines. They reference several original parts and fit models like 3.0L and 150, with a product number of 18-0398-9.
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€ 8,21
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1-2 weeks delivery time Price incl. 19% VAT High-quality intake manifold gaskets for Mercruiser engines provide optimal sealing and performance, compatible with models such as 7.4L, 8.2L MIE, and more, with original references including 27-52571 and 27-61782.
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€ 100,65
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1-2 weeks delivery time Price incl. 19% VAT Durable oil pan gaskets ensure leak-free operation in Mercruiser, Volvo-Penta, and OMC engines, fitting models like 5.7L and 350, with original references such as 27-90458 and FI5000178.
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€ 49,64
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1-2 weeks delivery time Price incl. 19% VAT This carburetor mounting gasket is specifically designed for Mercruiser stern drives, ensuring a reliable fit and performance, and is made from durable material resistant to fuel and oil.
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€ 11,89
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1-2 weeks delivery time Price incl. 19% VAT The inlet gasket for V-6 Vortec engines guarantees a reliable seal to prevent leaks and enhance performance, suited for models like 4.3L/X/EFI/MPI, with original references 27-824326002 and 27-8243261.
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€ 101,04
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1-2 weeks delivery time Price incl. 19% VAT Providing a strong seal for V-8 engines, this intake gasket enhances engine efficiency and performance, compatible with various models, featuring original references like 27-807473A1 and 3857662.
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€ 52,94
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1-2 weeks delivery time Price incl. 19% VAT Essential for maintaining engine function, this valve stem seal prevents oil leakage in Mercruiser, OMC, and Volvo Penta engines, with original references including 26-34217 and FI1100152.
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€ 5,30
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1-2 weeks delivery time Price incl. 19% VAT This rear main oil seal for crankshafts is crucial in preventing oil leaks across various marine engines, ensuring smooth operation, compatible with models like 3.0L to 502, and features original references such as 26-14240 and 3852657.
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€ 46,56
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1-2 weeks delivery time Price incl. 19% VAT This high-quality carrier oil seal assembly is designed for optimal performance in Mercruiser engines, compatible with models Alpha I / Gen II, MC-I, R, and MR, and is branded by Sierra with product number 18-0577.
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€ 82,26
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1-2 weeks delivery time Price incl. 19% VAT Ensure a reliable seal with the exhaust manifold gasket kit for small block engines, suitable for 305 and 350 CID models, specifically for Crusader engines, and branded by Sierra with product number 18-0602.
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€ 89,54
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1-2 weeks delivery time Price incl. 19% VAT The universal exhaust manifold gasket set is compatible with various engine models, including Chris-Craft, Crusader, and Mercruiser, and is designed for use with FORD 302/351 CID engines, from the brand Sierra, product number 18-0603.
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€ 51,26
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1-2 weeks delivery time Price incl. 19% VAT Essential for maintaining the integrity of GM engines, this exhaust manifold gasket kit is suited for 305 and 350 CID models, branded by Sierra with product number 18-0604.
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€ 48,13
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1-2 weeks delivery time Price incl. 19% VAT This rocker cover gasket ensures a proper seal for various GM engine models, including 5.0L and 5.7L, and is compatible with Mercruiser and Volvo Penta engines, branded by Sierra with product number 18-0664.
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€ 37,31
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What are the different types of boat bellows and their specific uses?
Boat bellows come in three main types: exhaust bellows, shift cable bellows, and u-joint bellows, each serving a specific function in a stern drive system. Exhaust bellows direct engine exhaust away from the boat through the drive, while shift cable bellows protect the shift cable from water intrusion and prevent leaks. U-joint bellows shield the universal joints and gimbal bearing from moisture and debris, helping to prevent rust and ensuring smooth operation of the outdrive.
Why is it important to regularly inspect and maintain boat bellows?
Regular inspection and maintenance of boat bellows are essential to prevent water intrusion and protect key components like the gimble bearing and shift cable. Cracks or dry bellows can lead to leaks, causing damage to the bell housing and requiring costly repairs. Using the right tools, such as an expander tool and socket, allows mechanics to carefully remove and replace worn bellows, ensuring the stern drive operates smoothly and the transom remains sealed against sea exposure.
In what marine environments do boat bellows experience the most wear and tear?
Boat bellows experience the most wear and tear in saltwater environments due to constant exposure to corrosion, UV rays, and marine growth. Frequent check and maintenance are necessary in high-motion conditions, such as rough waters or areas with heavy boat traffic, where the mount and clamp connections endure significant strain. Proper access to the bellows for inspections and timely pull and replacement of worn-out units can prevent leaks and potential drivetrain damage.