Gates 37084P Alternator Decoupler Pulley

Part Number
DriveAlign Overrunning Decoupler Pulley

Fits: 07-15 BMW 335i, 07-08 BMW 335xi, 08-13 BMW 135i, 09-15 BMW 335i xDrive, 10 BMW 535i, 10 BMW 535i GT, 10 BMW 535i xDrive, 11 BMW 1 Series M, 11-12 BMW 335is, 13 BMW 135is, 14-15 BMW 335i GT xDrive

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Gates Alternator Decoupler Pulleys provide vibration isolation within the Accessory Belt Drive System resulting in smoother engine performance and efficiency and increased belt and component life. Line consists of overrunning alternator decoupler pulleys and one way clutches.

  • Exact OE replacement
  • Patented design unmatched by any other supplier
  • Torsion spring absorbs engine vibration for quieter, smoother ride
  • Chosen by OEM to reduce noise, vibration and harshness

Note: Vehicles designed to use ADPs should never use a solid or one-way clutch pulley. These parts are not interchangeable, and failure to install the correct replacement can cause damage to accessory drive components.

Gates - Driven By Possibility

BRAND: Gates


  • DriveAlign Overrunning Decoupler Pulley
  • 2015-07 BMW, 335I, 6-Cyl. 3.0 L, Alt. Decoupler Pulley
  • Decoupler Pulley
  • DriveAlign® Overrunning Decoupler Pulley


Bore Diameter17
Contact SurfaceV-Ribbed Grooved
ContentsPulley, Dust Cap
DescriptionOne-Way Clutch Decoupler Pulley
Groove Quantity7
OE Comparison RatingOE Exact
Outside Diameter49
Required Tool Part Number91024-1



  • Tendeco: 930014
  • NAPA Belts/Hose: 37084P
  • BMW: 12317560678
  • ACDelco: 37084P
  • Carquest: 37084P
  • Litens: 930014A


  • 2013-2013 BMW 135is
  • 2010-2010 BMW 535i xDrive
  • 2007-2015 BMW 335i
  • 2009-2015 BMW 335i xDrive
  • 2014-2015 BMW 335i GT xDrive
  • 2007-2008 BMW 335xi
  • 2010-2010 BMW 535i
  • 2010-2010 BMW 535i GT
  • 2011-2012 BMW 335is
  • 2011-2011 BMW 1 Series M
  • 2008-2013 BMW 135i
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