SIERRA 118-4255 Oil Drain Plug

Compatibility

The SIERRA 118-4255 oil drain plug is a critical component ensuring the sealing integrity of the lubrication system in the lower unit of your outboard motor. Regular oil changes in the gearcase are essential for maintaining propulsion mechanism efficiency, and using genuine or compatible parts like this SIERRA component guarantees the longevity of your seals. Due to the lack of specific model data in the source information, we cannot definitively list compatible engine brands. We recommend verifying fitment by comparing the catalog number 118-4255 with your engine's technical documentation or OE number. If you have any doubts regarding part selection, contact our customer support for assistance.

Installation and Maintenance

Proper installation of the drain plug is fundamental for reliability. Before removing the old plug, ensure the gearcase is cool to avoid burns from hot oil. Cleanliness of the thread and seat surface is crucial for effective sealing. After the oil change, tighten the plug by hand, avoiding over-tightening which can damage the threads or the seal. Regular inspection of the plug prevents leaks and extends the life of the gearcase.

• Original quality and precision manufacturing from SIERRA.
• Ensures sealing of the lower gearcase lubrication system.
• Easy installation using standard tools.
• High resistance to corrosion and engine oil action.
• Key element for regular outboard motor maintenance.