AYP Husqvarna Craftsman 138017 186689 Sway Bar Bracket Kit Includes One (1) Sway Bar Bracket and One (1) Bracket Sway Bar Chassis Replaces AYP part number 138017, Replaces AYP part number: 186689 Fits 38-inch, 42-inch, 46-inch and 50-inch Decks Fits select Craftsman model numbers starting with 917. Sway bar bracket supports the anti-sway bar that prevents the mower deck from vibrating