This replacement serpentine belt idler pulley is just what you need to get your vehicle in good working order again!


  • (1) - Serpentine Belt Type Drive Belt Idler Pulley
  • Replaces dealer part number: 642 200 10 70, 6422001070
  • Includes bearing
  • Direct replacement
  • Built to strict quality control standards
Note for Sprinter Vans: This listing is for one (1) pulley. Sprinter vans have two (2) pulleys mounted directly to the timing cover (upper center and right center). This part would replace either one of those pulleys.

If you are hearing a whirring noise from the front of your engine or if your belt often screeches you may be in need of a new belt tensioner or idler pulley. The idler pulley is typically used to redirect the serpentine belt, or help to apply tension against the belt tensioner.

If you are replacing your serpentine belt tensioner, it is usually a good time to replace the idler pulley as well.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

There are no reviews for this item. Write Review
Start typing your question and we'll check if it was already asked and answered. Learn More
No questions have been asked about this item. Be the first!

Vehicle Fit

  • 2007-2009 Mercedes Benz E320 Idler Pulley
  • 2007-2009 Mercedes Benz GL320 Idler Pulley
  • 2010-2013 Mercedes Benz GL350 Idler Pulley
  • 2007-2009 Mercedes Benz ML320 Idler Pulley
  • 2010-2013 Mercedes Benz ML350 Idler Pulley V6 3.0L Turbo Diesel
  • 2007-2009 Mercedes Benz R320 Idler Pulley
  • 2010-2012 Mercedes Benz R350 Idler Pulley V6 3.0L Turbo Diesel
  • 2010 Mercedes Benz Sprinter Idler Pulley

This part replaces:

  • OE # 6422001070
Only 2 left in stock
Part #: 1AEIP00023

Ships Same Day for orders placed by 4 P.M. ET