CuttingPro# 15585 Spindle Assembly for ARIENS 21546238, AYP 187292, AYP 192870, HUSQVARNA 532 18 72-92, 539 11 20-57 Fits Models: AYP 46", 48" and 54" deck Height: 7-1/2 " Threaded mounts, includes 4 screws and grease zerk