BC Racing North America
Pillowball Top NutFits Pillowball Top Mount
12mm or ...
BC Racing North America
Nylon Top Nutcompatible with rubber upper or OEM upper mounts
Compatible with rubber upper mounts. Compatible with some BC Racing Coilover kits that reuse OEM upper mounts. Is not an OEM replacement nut.   ...
Part No: TOP-NUT-NYLON