Gates 90K-38319 Serpentine Belt Drive Component Kit

Accessory Belt Drive Kit for Mercedes-Benz

The Gates Accessory Belt Drive Kit 90K-38319 is a complete serpentine belt drive service kit for restoring the front accessory drive system. It includes an OE-equivalent belt, tensioner, idler pulleys, and related installation guidance to help address wear across the full drive path on Mercedes-Benz applications.

For Mercedes-Benz CLK350, E550, and C350 applications, this kit helps replace the belt and key rotating components together rather than servicing only one part of the system. The Gates Accessory Belt Drive Kit line is built around complete accessory drive restoration, making it a practical choice when the belt, tensioner, and idlers show age or wear.

Key Features

• Gates Accessory Belt Drive Kit, part number 90K-38319
• OE-equivalent serpentine belt for accessory drive service
• Includes belt, tensioner, and 2 idlers
• Belt outside circumference: 95.236 in. / 2419 mm
• Belt top width: 0.807 in. / 20 mm
• Belt 1 part number: K060947
• Idler pulley part numbers: 38099 and 36372
• Tensioner assembly part number: 38319

Detailed Description

Gates 90K-38319 is a serpentine belt drive component kit for 2006-2007 Mercedes-Benz C350, 2007-2009 Mercedes-Benz E550, and 2008-2009 Mercedes-Benz CLK350. It is built to service the accessory belt drive system as a unit, helping maintain proper belt tracking and tension across the front-end accessory components. This part cross-references Continental ADK0012P for the same application.

The kit is centered around the belt dimensions and matched drive components needed for these Mercedes-Benz models. Using the correct belt length, tensioner, and idlers together helps keep the accessory drive system aligned with OE-style specifications and reduces the chance of repeat repairs on the same service interval.

Common Issues This Kit Can Address

• Squealing or chirping from the serpentine belt area
• Visible belt cracking, glazing, or edge wear
• Weak or inconsistent belt tension
• Idler pulley noise or rough rotation
• Accessory drive vibration or belt tracking concerns

Installation Notes and Tips

Verify belt routing and component alignment before installation. Inspect the accessory drive path for pulley wear, contamination, or damage that could affect belt life. For best results, replace the belt, tensioner, and idlers together when servicing the serpentine drive on Mercedes-Benz C350, E550, or CLK350 applications.

Quality Assurance

Gates supplies this kit as part of its Accessory Belt Drive Kit line, which is intended to simplify complete serpentine drive service with matched components and installation guidance for accurate fitment.