Working on your Sea-Doo watercraft? These YIHETOP valve stem seals are exact replacements for keeping your engine running smoothly. This 12-piece set gives you plenty for a complete rebuild with some extras just in case. They're precision-engineered to match OEM specifications, so you get proper fit and performance without paying dealership prices. Compatible with a huge range of Sea-Doo models including GTX, RXP, RXT, Wake series, and most 4-TEC engines from various years. The materials are designed to withstand the heat and pressure of marine engine operation, providing reliable sealing that prevents oil from entering combustion chambers. Installation is straightforward if you're familiar with engine work - just make sure to follow proper procedures for your specific model. These seals help maintain proper compression and prevent oil consumption issues that can plague older engines. The quality feels solid - no rough edges or imperfections that might cause premature wear. Perfect for DIY mechanics looking to save on maintenance costs or professionals needing reliable parts inventory. Whether you're doing preventative maintenance or repairing existing issues, these seals deliver OEM-comparable performance at a much more reasonable price. The 12-piece quantity means you can do multiple machines or keep spares for future needs. Much better than gambling with questionable off-brand parts that might fail quickly. A smart choice for anyone maintaining Sea-Doo personal watercraft who wants reliability without the premium price tag.