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Old 01-11-2013, 07:36 AM   #15
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Join Date: Jun 2010
Location: CT
Posts: 2,115
My Ride: 2001 325i
Idle pulley $36 BMW or $25 OEM, complete AC tensioner $56 OEM or $90 BMW, complete water pump/alt mechanical tensioner $53 OEM. Some have updated to the hydraulic tensioner which was a BMW update, runs $100 for OEM. If you just want to replace the pulley on the mechanical tensioner(s), get Dayco 89133 from Amazon for $19 or Autozone sells it under their brand name to. Made by OEM INA. BMW prices from discounting BMW sponsor and OEM from
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