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 The Johnson / Evinrude Baseplate Gasket Kit for 40 to 75 horsepower provides essential components for maintaining performance in 2-stroke engines, compatible with several models, and has an original reference of 396349.
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$ 116.91
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1-2 weeks delivery time The Johnson / Evinrude Baseplate Gasket Kit for 18 to 25hp models ensures a secure fit for optimal performance, covering specific models from 1958 to 1978, with an original reference of 433550 and product number 18-2684.
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$ 60.59
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1-2 weeks delivery time The Johnson / Evinrude Baseplate Gasket Kit for 85 to 115 V-4 engines is suitable for a range of Evinrude and Johnson models, ensuring reliable sealing and performance with product number 18-2692, covering models from 1973 to 1983.
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$ 138.89
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1-2 weeks delivery time The Johnson / Evinrude Baseplate Gasket Kit for 40 to 50hp engines is designed to ensure optimal performance and reliability for Johnson and Evinrude models from 1989 to 2005, with an original reference of 433550 and product number 18-2694.
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$ 84.41
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1-2 weeks delivery time The O-Ring Kit for Volvo-Penta and OMC Base is essential for maintaining sealing integrity across various models, including SX, DP, and others, with a product number of 18-2699.
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$ 9.15
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1-2 weeks delivery time The Alpha 1 Gen II Transom Gasket is vital for ensuring a secure seal in Mercruiser applications, identified by original reference Merc. 43713 and product number 18-2724.
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$ 38.11
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1-2 weeks delivery time The Complete Kit for Volvo-Penta Transom provides all necessary components for a reliable installation, compatible with OMC and Volvo Penta models, and is identified by product number 18-2772-1.
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$ 363.30
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1-2 weeks delivery time The Yamaha Baseplate Gasket Kit is compatible with various Yamaha engines ranging from 115 to 225hp, providing a reliable seal for optimal performance, and includes multiple original references with product number 18-2794-1.
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$ 213.23
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1-2 weeks delivery time The 2 Exhaust Elbow Seals are essential for maintaining the integrity of the engine system, compatible with various models from Ford, GM, and Mercruiser, with product number 18-2833-9.
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$ 16.32
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1-2 weeks delivery time The 2 Exhaust Elbow Seals for Mercruiser engines are designed to ensure a tight seal and prevent leaks, compatible with numerous models, and identified by product number 18-2849-9-1.
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$ 37.12
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1-2 weeks delivery time Designed for various Johnson and Evinrude outboard engines, these head gaskets provide a reliable seal and reference original part number 332010. They are compatible with models 3 to 8 and are manufactured by Sierra, with the product number 18-2888-9.
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$ 60
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1-2 weeks delivery time These engine block exhaust manifold gaskets are essential for various GM engines, ensuring proper fit and seal, with original references including 27-99757 and 3853412. They are compatible with multiple models and are produced by Sierra, carrying the product number 18-2909-9.
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$ 34.48
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1-2 weeks delivery time Designed for specific Mercruiser and OMC engines, this exhaust manifold gasket guarantees durability and performance, replacing original references 27-53354 and 908079. It fits models 140, 302, and 9902, and is manufactured by Sierra, with the product number 18-2912-1.
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$ 34.34
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1-2 weeks delivery time These high-quality OMC transom seals are crucial for maintaining inboard engine performance and preventing leaks, referencing original part numbers 911836 and 915840. Manufactured by Sierra, they have the product number 18-2918-9.
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$ 59.44
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1-2 weeks delivery time The 2 Mercruiser stern drive gaskets provide a reliable seal for various Mercruiser models, ensuring optimal performance and durability, and replace original references such as 26-45577 and 26-455771. They are produced by Sierra under the product number 18-2944-9.
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$ 9.34
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1-2 weeks delivery time Designed for a range of Mercury and Mercruiser engines, these lower unit drain gaskets help prevent leaks and are compatible with engines from 6 to 250hp. Produced by Sierra, they carry the product number 18-2945-9.
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$ 3.77
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1-2 weeks delivery time These exhaust manifold gaskets are designed for Volvo-Penta engines, ensuring a tight seal and optimal performance for various models produced between 1973 and 1993. They are made by Sierra and have the product number 18-2949-9.
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$ 34.98
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1-2 weeks delivery time Compatible with Evinrude and Johnson outboard engines, this head gasket is for models 5, 5.5, and 6, providing a strong seal for optimal operation. Manufactured by Sierra, it carries original reference numbers 329103 and 306204, with the product number 18-2961.
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$ 36.98
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1-2 weeks delivery time This durable head gasket is designed for Evinrude and Johnson outboard engines, specifically for models 9.9, 14, and 15, ensuring reliable sealing and performance. It is produced by Sierra and has the product number 18-2963, referencing original numbers 318914, 320533, and 330818.
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$ 28.90
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1-2 weeks delivery time The exhaust elbow gasket is essential for maintaining the performance of Volvo-Penta engines, providing a secure seal to prevent leaks. It references original part numbers 835908, 856039, and 857618, and is compatible with numerous models including AQ175 and AQ290. This product is made by Sierra with the product number 18-2971-1.
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$ 31.36
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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.