Eibach S3-0-13-20-46-157 stud 1/2 UNF x 46mm for Eibach coilovers

Exact-spec replacement stud for Eibach S3-series coilovers: 1/2 UNF thread, 46mm length, knurled 15.7mm wrench flats. Not a generic fit - this is the genuine Eibach part coded S3-0-13-20-46-157.

• Designed solely for Eibach S3 coilover top mounts - no adaptation needed
• Knurled flats prevent rounding during torque-up on fast-road or track-day setups
• Direct swap for worn or stripped studs; maintains factory preload and alignment integrity
• Not compatible with Pro-Kit, Sportline or non-S3 Eibach variants