Front swaybar diameter part #s, sizes, paint splotch colors:
9173982 O.Dia 20 mm (marked red)
9173983 O.Dia 21 mm (marked yellow)
9173471 O.Dia 21.5 mm (marked yellow/blue)
… copied from Erik’s post in MVS Forums.
Front Swaybar Diameter relates to P80 Volvos that include 850, S70, V70, C70 & V70-XC (1992-2000)