INFORMATION ON ORDERING TAILAMP ASSEMBLY BULBS

MODELS: 1988 - 1990 C/K

At the beginning of 1990 C/K Production a new tail lamp assembly went into use on all C/K trucks. The new tail lamp assembly part numbers are 16511565 and 16511566 left hand and right hand respectively. These parts are used to service all 1988-89-90 C/K models. The new tail lamp assemblies that are shipped from GMSPO do not come with bulbs and the bulbs used in the previous tail lamp assemblies do not fit into the new tail lamp assemblies. Tbe new bulbs are insert molded wedge based.

The top two bulbs are: GM PART NUMBER 9441839 American National Standard Information (ANSI) Part Number 3057

The third bulb is: GM PART NUMBER 9442003 ANSI Part Number 3156

ANSI are industry numbers and can be procured at local automatic suppliers or electronic stores.

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.