Gates 90K-38420 Serpentine Belt Drive Component Kit

Accessory Belt Drive Kit for GM V6 Applications

Restore the front accessory drive with the Gates Accessory Belt Drive Kit 90K-38420. This serpentine belt drive component kit is built around OE-equivalent service parts for the belt, tensioner, and idlers, helping address wear across the entire drive system instead of replacing only one component.

Compatible With 2006-2009 Chevrolet Uplander, 2006-2009 Pontiac Montana, and 2006-2007 Buick Terraza. The Gates Accessory Belt Drive Kit line is intended to simplify full-system serpentine service with matched components and installation guidance for accurate repair work.

Key Features

• Gates Accessory Belt Drive Kit, part number 90K-38420
• Serpentine belt drive component kit for accessory belt system service
• Includes an OE-equivalent belt, tensioner, idler pulleys, and necessary hardware
• Belt specification: 110.5 in. outside circumference, 20 mm top width
• Belt part number K061099 with tensioner assembly 38420
• Idler pulley part numbers 38006, 38009, and 36201

Detailed Description

The Gates 90K-38420 kit is a complete serpentine belt drive service solution for vehicles using the listed GM applications. By replacing the belt, tensioner, and idler pulleys together, the kit helps maintain proper belt tracking and consistent accessory drive operation. This approach is especially relevant for high-mileage vehicles where pulley bearing wear or tensioner fatigue can affect belt life and front-end accessory performance.

Fits 2006-2009 Chevrolet Uplander, N/A; Fits 2006-2009 Pontiac Montana, N/A; Fits 2006-2007 Buick Terraza, N/A. This part cross-references Monroe Shocks & Struts (e.g., DBK061099) for the same application.

Common Problems This Kit Can Address

• Squealing or chirping from the serpentine drive
• Visible belt wear, cracking, or glazing
• Weak or inconsistent belt tension
• Idler pulley noise or rough bearing operation
• Accessory drive vibration caused by worn components

Installation Notes and Tips

Inspect the belt routing, pulley alignment, and accessory drive surfaces before installation. Replace the full serpentine drive components together when wear is present to reduce repeat repairs and help ensure the new belt operates under proper tension. Follow the included installation instructions and tech tips for accurate fitment and setup.

Quality Assurance

Gates designs this Accessory Belt Drive Kit as an OE-equivalent service package for the listed applications, with matched components intended to restore the accessory belt drive system to proper operating condition.