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.
|
1-2 weeks delivery time Price incl. 19% VAT The Powerhead Gasket for Johnson/Evinrude outboard motors is crucial for sealing the internal engine system, preventing leaks and ensuring reliable operation. It replaces OMC 388602 and is compatible with Johnson/Evinrude outboards. Branded by Sierra, the product number is 18-4301.
|
€ 137,63
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT The Powerhead Gasket Set for Johnson/Evinrude 60/65/70/75 HP provides reliable sealing for various outboard engines. It fits models from 1986 to 1988 and is interchangeable with several references, including Mallory 9-64102. The product number is 18-4302, and it is branded by Sierra.
|
€ 192,57
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT The Johnson Evinrude Powerhead Gasket Set is designed for various outboard models, ensuring a reliable seal for optimal engine performance. It features original references like 389553 and is compatible with numerous Johnson and Evinrude engines. The product number is 18-4303-1, and it is branded by Sierra.
|
€ 191,35
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT The Johnson Powerhead Gasket Kit is made with high-quality materials to meet OEM specifications, making it perfect for 2-cylinder models. It includes various gaskets and is interchangeable with several references, including GLM 39370. The product number is 18-4305, and it is branded by Sierra.
|
€ 174,97
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT This Powerhead gasket set is specifically designed for OMC engines, ensuring reliable sealing for optimal performance with OEM part number 394546 and product number 18-4306 from the brand Sierra.
|
€ 53,42
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT The gasket kit is compatible with various Johnson and Evinrude engine models, offering durability and performance, featuring original part numbers 433941, 392567, and 392615, and is branded by Sierra with product number 18-4307.
|
€ 100,09
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT Designed to replace specific Mercury Marine parts, this powerhead gasket ensures compatibility and performance for various outboard motors, replacing part number 27-85491A90 and compatible with several Mercury Marine models, branded by Sierra with product number 18-4325.
|
€ 104,74
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT This complete Mercury powerhead gasket kit is essential for maintaining the performance of Mercury outboard motors, branded by Sierra and identified with product number 18-4326.
|
€ 95,77
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT Designed for specific GM engine blocks, this elbow gasket and exhaust manifold set ensures reliable performance and fit, compatible with models 4.3L/X/MPI, 175, 185, and 205, branded by Sierra with product number 18-4347-1.
|
€ 34,61
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT Compatible with all Mercruiser small block GM (Chevy) 5.0 and 5.7-liter manifolds, this exhaust manifold gasket set fits Center Riser Type Manifolds from 1983–2001, with compatibility for manifold part numbers OSC7114B and MC-1-87114, branded by Sierra with product number 18-4349.
|
€ 45,67
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT This Sierra replacement powerhead gasket kit is designed for Mercury Marine engines, offering reliable components for maintenance and repair, and includes various gaskets and O-rings, all branded by Sierra with product number 18-4353.
|
€ 69,59
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT The overhaul gasket set for Mercury and Mariner outboard motors replaces part number 27-815791A92 and does not include head gaskets, branded by Sierra with product number 18-4359.
|
€ 217,50
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT Designed for GM engine blocks, this exhaust manifold gasket kit ensures a reliable seal and optimal performance, with original reference 27-99777A1, and is branded by Sierra with product number 18-4367.
|
€ 41,20
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT This comprehensive gasket set includes all necessary components for maintaining OMC Sterndrive and Cobra Stern Drives, featuring several gaskets and interchangeable with GLM and Mallory parts, branded by Sierra with product number 18-4369.
|
€ 98,39
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT Specifically engineered for 140 HP and 3.0L engines produced between 1973 and 1984, this exhaust manifold gasket set is branded by Sierra with product number 18-4371.
|
€ 130,03
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT The overhaul gasket set for OMC Sterndrive and Cobra 140 HP 3.0L engines manufactured between 1973 and 1988 ensures a perfect seal and optimal performance, branded by Sierra with product number 18-4374.
|
€ 235,22
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT This timing chain gasket set is compatible with various Mercruiser engine models, including 2.5L, 3.0L, and others, engineered for reliable sealing and performance, branded by Sierra with product number 18-4375.
|
€ 23,77
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT This engine block gasket kit is suitable for GM 3.0L engines, excluding the 3.0LX model, providing essential sealing solutions to maintain engine integrity and performance, branded by Sierra with product number 18-4384.
|
€ 200,26
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT Essential for maintaining the integrity of your Mercruiser stern drive system, this exhaust manifold gasket replaces Mercury Marine part number 27-35898A4 and is compatible with various Mercruiser stern drive models, branded by Sierra with product number 18-4395.
|
€ 36,58
-
+
| ||
|
1-2 weeks delivery time Price incl. 19% VAT The exhaust manifold gasket kit for Mercruiser engines ensures a perfect seal, enhancing performance and reliability, with original reference 27-46401A1 and designed for models 4.1L, 165, 250, branded by Sierra with product number 18-4396.
|
€ 66,20
-
+
| ||
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.