Parts such as the Rear Swinging Arm (model J/k/l): Swinging Arm Assy, Rear (pearl), Washer(14.5x29x2.3), Nut, Clamp are included in the Lt230e 1989 (k) Rear Swinging Arm (model J/k/l) parts fiche.
With six applications this Bolt is the most specified part.