SFI-Rated FluidGel Serpentine Pulley Damper, 2001-06 BMW Mini Cooper S Tritec 1.6L Gen 1, Outside Diameter: 131mm, Standard Drive, Black Epoxy Finish|PRW 2510900 SFI-Rated FluidGel Serpentine Pulley Damper 2001-06 BMW Mini Cooper S Tritec 1.6L Gen 1.