For those maintaining older Johnson and Evinrude 50HP outboard motors from 1971-1975, this Sierra International head gasket is the quality replacement part you need. The part number 18-2960 is specifically designed for these applications and serves as direct replacement for the original equipment. This gasket is interchangeable with several other part numbers including GLM 33400, Johnson/Evinrude Outboard 313413, and Mallory 9-63827, giving you multiple reference points to ensure you're getting the correct component for your motor. Sierra has built a reputation in the marine industry for producing parts that meet or exceed original equipment specifications, so you can be confident this gasket will provide the proper seal and durability your engine requires. The package includes one gasket, which is typically what you need for a standard head gasket replacement job. Proper installation is crucial - always clean the mating surfaces thoroughly, follow torque specifications precisely, and use appropriate sealants if recommended for your specific engine model. Having the right head gasket is essential for maintaining proper compression, preventing coolant leaks, and ensuring your outboard runs efficiently and reliably. Whether you're doing routine maintenance or repairing a blown gasket, using quality components like this Sierra gasket helps ensure your classic outboard motor continues to provide years of dependable service on the water. It's one of those fundamental repair parts that every vintage outboard owner should have access to when maintenance time comes around.
Free 30-day returns 
Free 30-day returns
