Blade holder shaft box for lawn tractor lawn mower compatible AYP HUSQVARNA ELECTROLUX Length (mm): 85 Outer diameter (mm): 145 Inner diameter (mm): 51,2 Weight: 643 g For models: R13C R16C Part No.: 13286569 Original part No.: 576 38 42-01 544 06 78-01 AYP HUSQVARNA ELECTROLUX SR m