AN ALTERNATOR BELT UTILIZING NEW MATERIAL FOR THE 5.7L V-8 DIESEL IS NOW IN PRODUCTION. THIS NEW BELT PART NUMBER 22517019 IS AVAILABLE FROM GMWDD. THIS BELT WHEN INSTALLED PROPERLY WILL INCREASE DURABILITY AND SHOULD BE USED AS A SERVICE REPLACEMENT ON ALL V-8 DIESEL ENGINES WITH A STEP DRIVE ALTERNATOR. A STEP DRIVE BELT RUNS OVER WATER PUMP AND ALTERNATOR PULLEYS ONLY. THE EXISTING ALTERNATOR BELT PART NUMBER 22511773 IS NO LONGER APPLICABLE FOR V-8 DIESEL ENGINES, BUT CAN BE USED ON V-8 GAS ENGINES.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.