SIERRA 118-2371 Upper Gear Oil Drain Plug

Compatible Engines

The SIERRA 118-2371 upper gear oil drain plug is a critical component ensuring the sealing and proper functioning of the lubrication system in your outboard motor. As a high-quality replacement, this part is engineered to meet the rigorous durability standards set by original equipment manufacturers. It is crucial to verify compatibility by comparing catalog number 118-2371 with your engine's technical documentation or the original equipment (OE) number. Due to the variety of gearcase designs across different engine models, we do not provide a specific list of brands here to avoid selection errors. If you have any doubts about whether this plug fits your specific drive unit, we strongly recommend contacting our store support. Our specialists are happy to help you confirm if this specific part is the ideal solution for your equipment.

Installation and Maintenance

Proper replacement of the oil drain plug is the foundation of gearcase longevity. During installation, pay close attention to the seal condition – we recommend replacing it with a new one every time to prevent leaks. Do not over-tighten the plug to avoid damaging the threads in the gearcase housing. Regular checks of the plug and oil condition in the upper gear will allow you to quickly spot potential damage and prevent costly failures.

• Leak-proof guarantee – precise manufacturing prevents oil leaks.
• High resistance – material resistant to corrosion and chemical agents.
• Easy installation – standard profile facilitates replacement in a workshop or DIY.
• Original quality – SIERRA product meets engine manufacturer standards.