GMC K3500 High Beam Indicator Bulb Size

The GMC K3500 high beam indicator uses bulb sizes 74, 161, and 168 depending on the specific production period. Available information covers a span from 1980 through 1997.

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
1993-199774W1.2WCheck Price
1988-1991161161Check Price
1980-1986168W5WCheck 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, 1W.161Check 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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