This Yamaha 63D-85540-04-00 C.d.i. unit assy is a genuine OEM part made in Japan. It is compatible with various Yamaha models and is a high-quality replacement part for your vehicle. The manufacturer part number is 63D-85540-04-00, and it comes with a quantity of 1. This C.d.i. unit assy is perfect for those looking to replace their Yamaha's old or damaged part. It is a reliable and efficient replacement part that will restore your vehicle's functionality. It is compatible with other Yamaha models and is made to fit perfectly. Get your hands on this genuine Yamaha part and ensure your vehicle's optimal performance.