Specification Length: 18-1/2" Width: 3" Thickness: 0.197" Center Hole: 5-Point Star Deck: 54" How to install You would need a wrench to replace it. 1. Make sure to disconnect spark plug before beginning repair 2. Lift the deck to the highest position 3. Remove flange nut that holds old blade 4. Replace old blade with a new one 5. Reassemble and test the mower Replaces OEM Part Numbers: Husqvarna: 112053, 187254, 187255, 24541, 33954, 532187254, 575938501, 777187256, 917187254, 917777187256 AYP: 24541, 33954, 112053,532187254, 532187255, 575938501, 917532187255, 917539112053, 917777187256 Poulan: 187254, 187255, 532187255, 777187256 Ariens 21546235, 21546848 Craftsman 187255, 187256 Dixon 532187756 Rotary 12121 Stens 302-430 Fits Models -For Husqvarna: 2354GXLS, 2754GLS, GT2254, GTH2454T, GTH24K54, GTH24V54, GTH264T, GTH2654, GTH2654T, GTH26K54T, GTH26V54, GTT354 LGT24K54, LGT2554, LGT2654, LGTH2454,LGTH24V54, LSZ5422, LSZ5424 RZ5422, RZ5424, RZ5426, RZ54i YTH2454, YTH2454T, YTH24V54, YTH26V54 Z254, Z5426 -For Ariens Hydro Tractors: 936043, 936059, 936068, 936069, 936055 Automatic Tractors: 936078, 936097, 936096 Gear Tractors: 936054 Precision Hydro Tractors: 936040 -For Craftsman: CMXGZAM110150, CMXGZAM110064 -For Poulan PBGT22H54, PBGT26H54, PB22H54, PB24H54 -NOTE Please check the model and center hole shape of your original blade before purchasing.