Suspension Top Hat. Spring Seat. Suspension, Coil Spring and Torsion Spring.
Insulator between the strut and vehicle body.

SPRING SEAT

Fits S60, S60 Cross Country, S80, V60, V60 Cross Country, V70, XC60, XC70

B6304T5. Variant code: CFB7.
Suspension Shock or Strut Mount
Strut mounts or strut bearings are often service with the strut assembly, and when they fail they can make a squeaking noise while turning or a metallic clunk noise when going over bumps. If your 2018 Volvo S60 is noisier than usual on bumpy roads or under braking, you may need new strut mounts.