Peterbilt 330 Courtesy Bulb Size

The Peterbilt 330 courtesy light utilizes 1141, 1004, and P21W bulb sizes for the interior lighting system. Data for the specified components covers the range from 1995 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

YearsBulb Size
19971141
1004 (With 4 Round Headlamps)
19961141
P21W (With 4 Rectangular Headlamps)
19951004
1141 (With Halogen Capsule Headlamps)

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1141
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W.1004
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.P21W

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