CYLINDER BASE GASKET — Yamaha 25HP 2-Cylinder 2-Stroke Outboard:
New cylinder base gasket for Yamaha 25HP 2-cylinder 2-stroke portable outboard engines. Fits between cylinder block and crankcase for proper compression sealing. Covers the ~395cc 2-cylinder 2-stroke powerhead used from 1998 through 2012. Direct replacement for Yamaha OEM 65W-11351-00-00 and alternate 65W-11351-10-00. Precision-cut for factory fit and reliable powerhead sealing.
⚠️ IMPORTANT: Verify OEM part number before ordering to ensure proper fitment.