Yamaha Motor Co., Ltd. 559-11651-00-00 Connecting Rod

The Yamaha 559-11651-00-00 Connecting Rod is a forged-steel, OEM engine internal component that links the piston to the crankshaft in Yamaha small-displacement motorcycles, including RT100 and MX100 models, delivering high strength and durability. It transfers the piston’s linear motion into rotational force within the crankcase and is precision-machined to balance the assembly and resist wear, with oil-fed bearing surfaces to reduce friction. This connecting rod is mounted within the crankshaft assembly and is intended for use in motorcycle engine rebuilds and internal repairs where durability and reliable power transfer are essential. Typical applications span off-road and vintage Yamaha bikes, as well as other small-engine rebuild projects that require dependable motion transfer between piston and crankshaft. Common replacements include Yamaha 2X6-11651-00-00, 3Y6-11651-00-00, and 5H1-11651-00-00, reflecting its role as a standard component in Yamaha’s small-displacement engine families.