Gates 37014P Alternator Decoupler Pulley

Gates 37014P Alternator Decoupler Pulley

The Gates 37014P is a steel alternator decoupler pulley built for Porsche charging system service. It uses a one-way clutch design to let the alternator free-wheel during engine deceleration, helping reduce belt vibration and improve accessory drive smoothness.

Compatible with 1997-2008 Porsche Boxster, 1999-2008 Porsche 911, and 2006-2008 Porsche Cayman, this Gates DriveAlign Decoupler Pulley is an OE Exact replacement for applications that require the correct pulley profile and fit.

Key Features

• Gates DriveAlign alternator decoupler pulley for accessory belt drive service
• One-way clutch design allows alternator overrun during deceleration
• Steel construction with flanged design
• 6-groove V-ribbed grooved contact surface
• Outside diameter: 56 mm; width: 42.5 mm; bore diameter: 14.5 mm
• Includes pulley and dust cap
• OE Exact comparison rating

Product Details

Gates 37014P is part of the DriveAlign Decoupler Pulley line, which includes overrunning alternator decoupler pulleys and one-way clutches. This specific unit is a one-way clutch decoupler pulley that isolates vibration in the accessory belt system while allowing the alternator to rotate independently when engine speed drops. For Porsche 911, Boxster, and Cayman charging system repair, the correct pulley design matters for belt tracking, noise control, and consistent operation.

This part cross-references Litens 930004A and Wix 49704 for the same application.

What It Helps Address

• Alternator pulley noise during engine deceleration
• Accessory belt vibration and belt flutter
• Harshness in the charging system drive
• Premature wear on belt-drive components
• Incorrect pulley replacement on Porsche 911, Boxster, or Cayman applications

Installation Notes

Installation tool 91024-1 is required for proper fitment. Verify the pulley profile, groove count, and bore dimensions before installation. This part is listed for 1997-2008 Porsche Boxster, 1999-2008 Porsche 911, and 2006-2008 Porsche Cayman, with N/A position designation.

Quality Assurance

Gates manufactures DriveAlign components for accessory drive service with OE-style specifications and application matching. Part number 37014P is built to OE Exact comparison standards for the listed Porsche applications.