Stens 430-173 Starter Switch Replaces Troy Bilt 1754250P Hustler 045898 Exmark 1-543070 AYP 158913 Husqvarna 532 15 89-13 Troy Bilt 1754250 Briggs & Stratton 490066 5/8-inch mounting stem Uses our 430-009 starter key Stens part number 430-173