Chevrolet S10 Parking Brake Indicator Bulb Size

The Chevrolet S10 parking brake indicator utilizes bulb sizes PC74, PC194, and 194 for the internal lighting components. Data for the specified vehicle components covers the range from 1987 to 2004.

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

YearsBulb Size
2004PC74
1994-1998PC74
1992-1993PC194 (With Digital Inst. Cluster)
194 (Without Digital Inst. Cluster)
1991PC194 (With Digital Inst. Cluster)
PC74 (Without Digital Inst. Cluster)
1987-1990PC74

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5) with printed circuit board twist-lock socket, for instrument clusters. 12V, 1.4W.PC74
ANSI standard (US & Canada). Miniature wedge bulb (T10) with printed circuit board twist-lock socket, for instrument clusters. 12V, 3.78W.PC194
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.194

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