Jeep J20 Brake Bulb Size
The Jeep J20 brake bulb specifications include 3 distinct sizes: 1156, 1157, and 198, with each size corresponding to particular model configurations. A replacement chart documents brake bulb data spanning from 1974 to 1988 for this vehicle.
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
| Years | Bulb Size |
|---|---|
| 1988 | 1156 |
| 1979-1987 | 1157 |
| 1974-1978 | 198 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 |
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 198 |