OE NO. 0012301311 / 0012307911 / 0012301311 / 0012307911 / 0012303211 / 4471805514 PULLEY WHEEL DIAMETER [MM] (ON GROOVES) 100 NUMBER OF GROOVES 7 INNER BEARING DIAMETER 35 mm: OUTER BEARING DIAMETER 52 mm BEARING WIDTH A 12 mm: MANUFACTURER / EQUIVALENT DENSO APPLICATION MERCEDES W203 / W211 (05-09r) COMPRESSOR TYPE DENSO 7SEU17C