GMC W6500 Forward Turn Signal Indicator Bulb Size

The GMC W6500 Forward turn signal indicator utilizes bulb sizes 73, 158, 168, and PC194 across the various configurations provided in the available technical data. Information for the specified components covers the period from 1987 through 1996 without any additional details or specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

YearsUS TypeEU TypeShop
1996158 (Tiltmaster)158Check Price
1993-1995PC194 (Tiltmaster)W5W+PCBCheck Price
1992158 (Tiltmaster)158Check Price
1989-199173 (Tiltmaster)73Check Price
1988158 (Tiltmaster)158Check Price
168 (With 2 Round Headlamps)W5WCheck Price
1987158158Check Price
168 (With 2 Round Headlamps)W5WCheck Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W.158Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10) with printed circuit board twist-lock socket, for instrument clusters. 12V, 3.78W.PC194Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.73Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.168Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.W5WCheck Price

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