Chevrolet Tiltmaster (W-Series) Turn Signal Bulb Size

Chevrolet Tiltmaster (W-Series) front and rear turn signal bulbs utilize 1157, 1156, and 1073 sizes depending on location and model variation. The replacement chart covers 1986 through 2001 production years with corresponding bulb specifications.

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

Front Turn Signal

YearsBulb Size
1997-20011157
1992-19961156
1986-19881157

Rear Turn Signal

YearsBulb Size
1997-20011157
1995-19961073
1992-19941156
1986-19881157

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.1157
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.1073

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