... APV2043 O.D:70mm width:28mm belt tensioner used on BMW E31, E34,E38, 530i,740i,540iOEM number ... 10312RUVILLE: 55018Outer Dia.:70mm Width:28mmBelt tensioner pulley used on: BMW 530i 1994-1995 (E34 chassis)BMW 540i ... Kia, Daewoo, Renault, Peugeot,Citroen, Fiat and so on.If you are interested in our products, please feel free ... most competitive price. Belt tensioner used on BMW E31, E34,E38, 530i,740i,540i