GM Service Manual Online
For 1990-2009 cars only

CS-121 & CS-130 GENERATORS SERVICED BY REPLACEMENT

MODELS AFFECTED: 1987 SKYHAWK, SKYLARK, SOMERSET AND CENTURY EXCEPT 3.8L WITH 120 AMP GENERATOR

Delco Remy CS-121 and CS-130 generators are serviced only by replacement with a completely assembled remanufactured generator. Disassembly is not authorized, and there are no service parts available.

Accordingly, the only labor code applicable to removing and replacing the CS-121 and/or CS-130 generators is labor code J4100.

NOTICE: CS-121 and CS-130 generators can be identified by the ampere rating stamped on the end frame.

CS-121 - 55, 61, 65 and 74 amps CS-130 - 85, 96, 100 and 105 amps

Service parts are available for CS-144 and "SI" series generators.

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.