View All DriveAlign® Overrunning Alternator Pulleys


Product # 77891191

Gates® DriveAlign® Overrunning Alternator Decoupler Pulleys allow the alternator to "free-wheel" or "overrun" every time the engine decelerates and provide vibration isolation within the Accessory Belt Drive System resulting in smoother engine performance and efficiency and increased belt and component life. The line consists of overrunning alternator decoupler pulleys and one way clutches (not interchangeable).

  • Chosen by OEM to reduce noise, vibration and harshness.
  • Patented design unmatched by any other supplier.
  • Exact OE replacement.
  • Product Details
    Part # 37191P
    Product # 77891191
    Description 37191P
    UPC 770075623823
    Contents Pulley, Dust Cap
  • Product Attributes
    Contact Surface V-Ribbed Grooved
    Flanged Yes
  • Construction
    Material Steel
  • Specifications
    Bearing Bore Inside Diameter 1 (mm) 17
    Outside Diameter (mm) 57.5
  • Belt / Sprocket Specifications
    Number of Grooves 7
    Width (mm) 40.5
  • Packaging details
    Customer Pack 1
    Weight (lbs.) 1.12
    Import or Domestic Import
  • Fits models

Features and Benefits

  • Torsion spring absorbs engine vibration for quieter, smoother ride.
  • Specialist removal and installation tools available.
  • Covers all popular applications
  • Supplied with protective cover.