An engine runs best when every seal is doing its job, and the Suzuki Valve Stem Oil Seal (09289-05006) is one of those small but critical components that keeps things running smoothly. Designed to prevent oil from seeping into the combustion chamber, this OEM seal ensures proper lubrication while maintaining clean, efficient engine performance.. Made to Suzuki's exact specifications, this seal features a 5.5mm inner diameter, 11mm outer diameter, and 8.2mm height, allowing for a snug, leak-free fit on compatible outboards, including DF200, DF225, DF250, DF300, and DF350 models. Crafted from high-temperature, wear-resistant materials, it stands up to heat, pressure, and long hours of operation without breaking down.. Why It Matters:. Prevents Oil Leaks - Stops excess oil from entering the combustion chamber.. Boosts Engine Efficiency - Helps maintain optimal compression and fuel burn.. Extends Valve Life - Reduces wear on valve stems by keeping lubrication in check.. OEM Fit for Suzuki