GMC G2500 Turn Signal Indicator Bulb Size

The GMC G2500 turn signal indicator requires bulb sizes 74, 194, and PC74 depending on the specific application. Available data covers the period from 1985 through 1995.

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

YearsUS TypeEU TypeShop
199574W1.2WCheck Price
1994194W5WCheck Price
1993PC74T5+PCBCheck Price
1992194W5WCheck Price
1985-1987194W5WCheck Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.74Check Price
ECE standard (Europe & worldwide). Miniature wedge bulb (T5) with W2x4.6d base. 12V, 1.2W.W1.2WCheck Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.194Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.W5WCheck Price
ANSI standard (US & Canada). Miniature wedge bulb (T5) with printed circuit board twist-lock socket, for instrument clusters. 12V, 1.4W.PC74Check Price

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