ACDelco 6K642 Professional V-Ribbed Serpentine Belt


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  • Made with temperature and crack resistant EPDM rubber for a long life and quiet, dependable performance
  • Is the belt of choice by professional technicians, lasting 50% to 60% longer than retail belts (low priced belts sold at car part stores)
  • Its precision dimension control of rib profile transmits load efficiently throughout the accessory belt drive systems (ABDS) allowing components to operate at optimum levels
  • Able to operate and accept misalignment in the accessory belt drive systems (ABDS) far greater than other serpentine belts
  • Its flexible construction allows the belt to withstand billions of topside and backside bends resulting in a long belt life

Professional, premium aftermarket V-Ribbed Advanced Technology Belts serve as replacement belts for accessory belt drive systems (ABDS) and other applications. They are designed using advanced manufacturing technology and premium EPDM rubber construction to provide customers with superior accessory belt drive systems (ABDS) and new-vehicle-type performance. These premium aftermarket replacement v-ribbed advanced technology belts are manufactured to meet your expectations for fit, form, and function.

Glober Nicumble
February 8, 2017
I bought this for a 1995 Impala SS LT1 350. Fit perfectly.
69 Customer69
June 3, 2018
Good fit, working fine
Al in Santa Clara, California
March 25, 2017
Old belt chirped for about half hour in the morning (due to a coolant leak from a failing water pump). After this new belt was installed, the chirping went away.
Poor Audiophile
August 27, 2016
Works fine
April 10, 2015
Was exactly what I expected and works great on my 1997 Camaro SS
J. Gray
June 27, 2014
I'm working on my buddy's car, and he's a stickler for OE parts which is why I went with AC Delco. What's ridiculous is, was actually cheaper than any local parts store, and the local dealership's parts department.
February 18, 2019
Installed a new pulley and the belt started squealing. Put this baby on and it's whisper quiet. 96 Chevy Impala SS with LT1.