Gates 37113P Alternator Decoupler Pulley

Gates 37113P Alternator Decoupler Pulley

The Gates 37113P is an OE-exact alternator decoupler pulley for vehicles that use a 6-groove, V-ribbed accessory belt drive. It helps the alternator free-wheel during engine deceleration, reducing belt shock and vibration in the charging system.

Built from steel with a flanged design, this Gates DriveAlign decoupler pulley is made for direct replacement service on select Nissan, Suzuki, and Hitachi alternator applications. It is a practical choice for restoring smoother belt operation on Frontier, Rogue, Altima, Sentra, X-Trail, and Equator models.

Key Features

• OE-exact alternator decoupler pulley for charging system service
• Steel construction for durability in accessory drive applications
• 6-groove, V-ribbed grooved contact surface
• Flanged design with 52 mm outside diameter
• 14.5 mm bore diameter and 40 mm width
• One-way clutch decoupler design for alternator overrun control
• Gates DriveAlign product line for alternator decoupler service

Product Details

Gates DriveAlign alternator decoupler pulleys are engineered to let the alternator overrun when engine speed drops, which helps isolate vibration in the accessory belt drive system. That function can reduce stress on the belt path and support smoother charging-system operation. Part number 37113P is an OE Exact replacement built to match the original application requirements for select Nissan and Suzuki vehicles.

This part cross-references Continental 49714 and Dayco 892014 for the same application.

What It Helps Address

• Belt vibration in the accessory drive system
• Alternator pulley noise during deceleration
• Harsh belt loading when engine speed changes
• Premature wear on the belt and related components
• Charging-system drivability issues tied to a worn decoupler pulley

Installation Notes

• Fits 2005-2013 Nissan Frontier, N/A; installation tool required for proper fitment.
• Fits 2010-2013 Nissan Rogue, N/A; installation tool required for proper fitment; W/Hitachi Alt.
• Fits 2009-2012 Suzuki Equator, N/A; installation tool required for proper fitment.
• Fits 2008-2009 Nissan Rogue, N/A; installation tool required for proper fitment.
• Fits 2002-2006 Nissan Altima, N/A; installation tool required for proper fitment.
• Fits 2005-2006 Nissan X-Trail, N/A.
• Fits 2002-2005 Nissan Sentra, N/A; installation tool required for proper fitment.

Verify alternator type and pulley style before installation, especially on Rogue applications with Hitachi alternators. Use the correct installation tool for proper removal and installation of the decoupler pulley.

Quality Assurance

Gates manufactures the DriveAlign line as OE-style charging-system hardware with exact-fit specifications for the listed applications. Part number 37113P is built to OE Exact comparison standards for consistent replacement service.