Gates 38006 Accessory Drive Belt Idler Pulley

OE-Style Idler Pulley for Serpentine Systems

The Gates DriveAlign Premium OE Pulley 38006 is an accessory drive belt idler pulley built for OE-quality fit in passenger cars and light trucks. It serves as a locked center tensioning pulley, automatic belt tensioner pulley, or idler pulley depending on the application.

With a steel body, smooth backside contact surface, and 76 mm outside diameter, this pulley is specified for accessory drive belt systems that need stable belt routing and consistent alignment. It is a direct-fit option for many Chevrolet Silverado, GMC Sierra, and Honda Odyssey applications.

Key Features

• Steel construction for accessory drive durability
• Smooth/backside contact surface for serpentine belt routing
• 76 mm outside diameter and 30.5 mm width
• 17 mm bearing bore inside diameter
• OE-quality fit for passenger cars and light trucks
• Works as an idler pulley, tensioning pulley, or automatic tensioner pulley in listed applications

DriveAlign Premium OE Pulley Line

Gates DriveAlign Premium OE Pulley components are built for OE-style fit and function in accessory drive belt systems. The line is used across a wide range of vehicle platforms, including Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, and Honda Odyssey applications, where correct pulley geometry and belt tracking are critical. Part number 38006 is one of the DriveAlign OE-style replacement pulleys used in these systems.

Detailed Description

This Gates 38006 pulley is engineered for accessory drive belt systems that use a smooth backside pulley surface. It measures 76 mm in outside diameter, 30.5 mm in width, and uses a 17 mm bearing bore. The steel construction supports consistent operation in OE-style belt routing setups found on many Chevrolet Silverado, GMC Sierra, and Honda Odyssey models.

This part cross-references Continental 49006 and Dayco 89003 for the same application.

What It Helps Fix

• Belt noise from a worn idler pulley
• Improper belt tracking across the accessory drive system
• Visible pulley wobble or rough pulley rotation
• Serpentine belt vibration caused by pulley wear
• Accessory drive routing issues on OE-style belt systems

Installation Notes and Tips

• Verify pulley position and belt routing before removal.
• Match the 17 mm bearing bore and 76 mm outside diameter to the original part.
• Inspect the serpentine belt, tensioner, and adjacent pulleys for wear during service.
• Confirm vehicle-specific fitment by year, make, model, and pulley position before installation.
• Fits 2021-2025 Chevrolet Silverado 2500 HD, Upper.
• Fits 2021-2025 Chevrolet Silverado 3500 HD, Upper.
• Fits 2021-2025 GMC Sierra 2500 HD, Upper.
• Fits 2021-2025 GMC Sierra 3500 HD, Upper.
• Fits 2005-2017 Honda Odyssey, N/A.

Quality Assurance

Gates DriveAlign Premium OE Pulley components are built to OE-quality fit standards for passenger cars and light trucks. Part number 38006 is specified for direct replacement in listed applications, including Chevrolet Silverado, GMC Sierra, and Honda Odyssey fitments.