Blade for lawn tractor lawnmower mower YT3600 FOR 38" FLAT BILBOARD A: 490mm B: 18mm C: 8mm D: 305mm E: 5mm F: 57 mm A: diagonal blade length B: Ø centre hole C: Ø positioning holes D: centre distance of positioning holes E: blade thickness F: width of blade YAMAHA Code: R302454 Original Code: YAIR236A00 AT