Buffer, component of the anti-vibration system. Models: MS 231 MS 231 C-BE MS 251 C-BE MS 251 MS 251 C-BEQ MS 241 C-M MS 241 C-M VW MS 241 C-BEM MS 241 C-MQ MS 271 MS 271 C-BE MS 291 MS 291 C-BEQ MS 291 C-BE