GMC K15 Instrument Panel Bulb Size
The GMC K15 instrument panel requires 3 distinct bulb sizes: 168, 1445, and 161, with each size serving specific illumination functions within the dashboard assembly. The replacement chart documents bulb specifications across the 1966 to 1978 production range.
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 |
|---|---|---|---|
| 1978 | 168 | W5W | Check Price |
| 1977 | 1445 | 1445 | Check Price |
| 1976 | 168 | W5W | Check Price |
| 1974-1975 | 1445 | 1445 | Check Price |
| 1971-1972 | 1445 | 1445 | Check Price |
| 1970 | 168 | W5W | Check Price |
| 1968-1969 | 161 | 161 | Check Price |
| 1967 | 57 | 57 | Check Price |
| 1966 | 161 | 161 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W. | 168 | Check Price |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W. | W5W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 2W. | 1445 | Check Price |
| ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W. | 161 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA9s base. 12V, 1W. | 57 | Check Price |