8K1377 caterpillar:control CONTROL ASSEM.

ACDelco Gold 8K1377 Standard V-Ribbed Serpentine Belt
ACDelco Drives several engine functions || Some ACDelco Gold parts may have formerly appeared as ACDelco Professional || Premium aftermarket replacement part || Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

ACDelco Professional 8K1377 Standard V-Ribbed Serpentine Belt
ACDelco 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

ACDelco Professional 8K1377 Standard V-Ribbed Serpentine Belt
ACDelco 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