Troy-Bilt Horse Tiller Tine Shaft Gasket (GW-1129-2, GW-1129-2099) Troy-Bilt Horse Tiller Tine Shaft Gasket (GW-1129-2) Troy-Bilt part numbers: 1129-2 GW-1129-2 GW-1129-2099 Applications: 21AE682L063 - Troy-Bilt Tiller 21AE686N063 - Troy-Bilt Tiller Specifications: Thickness: .030