Blade for lawn tractor lawn mower YLM453S YLM453SB YLM453SE YLM453SBE A: 533mm B: 21mm C: 10.5mm D: 55mm E: 4mm F: 57mm A: diagonal blade length B: centre hole dia. C: centre hole dia. D: distance between centre holes E: blade thickness F: blade width YAMAHA Code: R301628 Original Code: JE35236100 AT