For 1990-2009 cars

# DIESEL GENERATOR DRIVE BELT APPLICATIONS

A NEW NON COG 4-PLY GENERATOR BELT HAS BEEN USED ON DIESEL ENGINES SINCE THE START OF 1981 PRODUCTION. THE NEW BELT P/N 22511772 SHOULD BE USED ON 1980 DIESEL ENGINES WITH SMALL GENERATOR PULLEY WHICH IS 2.4" OUTSIDE DIAMETER. THE NEW BELT P/N 22511773 SHOULD BE USED ON 1980 & 81 DIESEL ENGINES WITH LARGE GENERATOR PULLEY WHICH IS 2.6" OUTSIDE DIAMETER. THE NEW BELTS HAVE MUCH BETTER DURABILITY THAN THE OLDER TYPE BELT.

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.