Peterbilt 320 Courtesy Bulb Size
The Peterbilt 320 courtesy light utilizes 1141, 906, P21W, and 1004 bulb sizes for the interior lighting system. Available information for the specified vehicle covers the range from 1987 to 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.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 1997 | 1141 (With 4 Rectangular Headlamps) | 1141 | Check Price |
| 906 (With 4 Round Headlamps) | 906 | Check Price | |
| 1156 (With Halogen Capsule Headlamps) | P21W | Check Price | |
| 1996 | 1004 | 1004 | Check Price |
| 1141 (With Halogen Capsule Headlamps) | 1141 | Check Price | |
| 1995 | 1141 | 1141 | Check Price |
| 1156 (With 4 Rectangular Headlamps) | P21W | Check Price | |
| 1994 | 1141 (With 4 Rectangular Headlamps) | 1141 | Check Price |
| 906 (With 4 Round Headlamps) | 906 | Check Price | |
| 1004 (With Halogen Capsule Headlamps) | 1004 | Check Price | |
| 1993 | 1141 | 1141 | Check Price |
| 1156 (With Halogen Capsule Headlamps) | P21W | Check Price | |
| 1991-1992 | 1004 | 1004 | Check Price |
| 1141 (With 4 Round Headlamps) | 1141 | Check Price | |
| 1990 | 1004 (With 4 Rectangular Headlamps) | 1004 | Check Price |
| 1141 (With 4 Round Headlamps) | 1141 | Check Price | |
| 1156 (With Halogen Capsule Headlamps) | P21W | Check Price | |
| 1988-1989 | 1141 | 1141 | Check Price |
| 1987 | 1141 (With 4 Rectangular Headlamps) | 1141 | Check Price |
| 1004 (With 4 Round Headlamps) | 1004 | Check Price | |
| 1156 (With Halogen Capsule Headlamps) | P21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1141 | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W. | 906 | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. Variant of 1157. 12V, 21/5W. | 1004 | Check Price |