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 Finnord 500516K Transmission Bellow Cover (FNI 2727880) is designed for stern drive systems and cross-referenced to MerCruiser 60932A4. It provides sealing and protection of the transmission area against water and debris, ensuring proper system integrity. EAN: 8051193006333.
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$ 71.13
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1-2 weeks delivery time The Finnord 500513K Cable Protection Bellow (FNI 2727881) is designed for stern drive systems and replaces MerCruiser references 23-30617A2, 74639, and 74639A2. It provides durable protection for control cables in marine environments, ensuring reliable sealing and long service life. EAN: 8051193006272.
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$ 17.79
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1-2 weeks delivery time The Finnord 500512K Exhaust Bellows (FNI 2727882) is designed for stern drive systems and replaces MerCruiser reference 18654A1. It ensures proper exhaust sealing and emission compliance in marine applications. Manufactured for durability and reliable performance. EAN: 8051193006258.
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$ 46.26
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1-2 weeks delivery time The Finnord 500507K Exhaust Coupling Sleeve (FNI 2727885) is designed for stern drive exhaust systems and replaces MerCruiser reference 32-44348T. With a diameter of Ø4", it ensures secure exhaust connection and proper flow. EAN: 8051193006173.
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$ 36.13
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1-2 weeks delivery time The Finnord 500509K Bellows (FNI 2727887) is designed for MerCruiser Bravo I, II and III stern drive models. Referenced to original part 86840A3, it is manufactured from durable, weather-resistant material to provide essential protection and reliable sealing within the drive system. EAN: 8051193006197.
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$ 81.21
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1-2 weeks delivery time The Finnord 500515K Bellows (FNI 2727888) is designed for MerCruiser Alpha Generation II stern drive systems and replaces original reference 816431A1. Manufactured from durable and flexible material, it provides protection and support within mechanical assemblies. EAN: 8051193006302.
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$ 85.95
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1-2 weeks delivery time The Finnord 501000 Gasket Kit (FNI 2727890) is designed for MerCruiser Alpha One stern drive systems and replaces reference 27-64818T4. The kit includes one gasket seal ring and three O-rings to ensure proper sealing and leak prevention. EAN: 8051193003653.
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$ 41.36
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1-2 weeks delivery time The Finnord 500523 Exhaust Bellows (FNI 2727891) is designed for MerCruiser engines from 120 to 198 HP and replaces original reference 70981A3. It ensures proper exhaust flow and reliable coupling within the stern drive system. EAN: 8057741268420.
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$ 35.15
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1-2 weeks delivery time The Finnord Exhaust Sleeve Coupling (FNI 2727892) is designed for MerCruiser 140/165 HP engines and replaces original reference 53114A1. It ensures proper exhaust coupling and supports efficient exhaust flow within the stern drive system. EAN: 8057741268437.
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$ 40.03
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1-2 weeks delivery time The Finnord 501004 Gasket Kit (FNI 2727893) replaces MerCruiser reference 27-35996A1 and is designed for models 1A, 1B and 1C. The kit includes one gasket seal ring and three O-rings to ensure proper sealing and leak prevention. EAN: 8051193003691.
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$ 36.77
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1-2 weeks delivery time The Finnord 501009 Transmission Water Hose (FNI 2727896) is designed for all MerCruiser Bravo sterndrives and replaces original reference 32-43437. It ensures proper transmission cooling water flow and reliable performance in marine environments. EAN: 8051193003738.
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$ 38.82
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1-2 weeks delivery time The Finnord 500514K Transmission Bellow Cover (FNI 2727900) is designed for sterndrive and Cobra engines. It replaces OMC references 987467 and 983973, and Volvo Penta references 3854127 and 3841481. The component protects the transmission system against water intrusion and debris, ensuring reliable marine performance. EAN: 8051193006289.
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$ 56.69
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1-2 weeks delivery time The Finnord 500506 Transmission Bellow Cover (FNI 2727908) replaces original reference 911826 and is designed for Sterndrive and Cobra engines. It protects the transmission system against leaks and damage, ensuring reliable marine operation. EAN: 8057741268444.
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$ 19.21
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1-2 weeks delivery time The Finnord Coupling Sleeve (FNI 2727910) replaces original reference 912374-1 and is designed for Sterndrive and Cobra engines. Acting as a collar transmission bellow, it ensures a secure connection between the engine and transmission assembly. EAN: 8057741268468.
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$ 35.69
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1-2 weeks delivery time The Finnord 500505K Transmission Bellow Cover (FNI 2727871) replaces Volvo Penta references 875828-6 and 876633-9. Designed for AQ175, AQ280, T, PT, AQD40 and V8 engines, it protects transmission components from debris and moisture, ensuring reliable stern drive performance. EAN: 8051193006166.
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$ 68.16
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1-2 weeks delivery time The Finnord 500510K Transmission Bellow Cover (FNI 2727872) replaces Volvo Penta reference 876294-0. Designed for AQ200, AQ250, AQ270, AQ275, AQ280 and AQ290 engines, it ensures secure sealing of the transmission system and helps prevent leaks. EAN: 8051193006227.
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$ 66.89
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1-2 weeks delivery time The Finnord 500500K Transmission Bellow Cover (FNI 2727873) replaces Volvo Penta reference 876631-3. Designed for AQ200, AQ250, AQ270, AQ275 and AQ280 engines, it protects transmission components and supports reliable stern drive operation. EAN: 8051193006128.
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$ 53.30
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1-2 weeks delivery time The Finnord 501011 Coupling Sleeve (FNI 2727875) replaces Volvo Penta reference 875822-9. Designed as a double elbow rubber universal sleeve for AQ200, AQ250, AQ270, AQ275, AQ280 and AQ290 engines, it ensures proper water intake flow in stern drive units. EAN: 8051193003745.
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$ 32.17
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1-2 weeks delivery time The Finnord 500533K Transmission Bellow Cover (FNI 2727877) replaces Volvo Penta references 3860384 and 3858139. Designed for DPG and DPX-A engines, it protects transmission components and ensures reliable stern drive performance. EAN: 8051193006449.
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$ 92.14
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1-2 weeks delivery time The Finnord 500528K Transmission Bellow Cover (FNI 2727878) replaces Volvo Penta reference 3850426. Designed for DP-S and SX engines, it protects the transmission assembly from contaminants and ensures reliable stern drive performance. EAN: 8051193006425.
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$ 56.32
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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.