The Isuzu Pickup side marker utilizes a 194 bulb size for illumination purposes within the lighting assembly. Data for the specific component covers the period from 1995 through 1995.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Isuzu Pickup uses the 194 bulb as the front side marker across the 1984-1995 model years, making it the most consistently specified bulb in these listings.
The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W under the ANSI standard applicable to the US and Canadian markets.
The wedge base of the 194 bulb requires no metal base or locking mechanism, as the glass envelope itself acts as the retention point within the socket.
The 1981-1983 Isuzu Pickup front side marker positions used the 67 bulb instead, which carries a BA15s single-contact bayonet base rather than a wedge fitting.
The 67 bulb is rated at 12V and 8W, making it a notably higher-wattage unit than the 194 that replaced it in later model years on the same vehicle.
The BA15s bayonet base of the 67 bulb is physically incompatible with the wedge socket used by the 194, so the two types are not interchangeable despite both serving the front side marker position on this model.
The rear side marker position on the 1994-1995 Isuzu Pickup uses the 1157 bulb, which features a BAY15d dual-contact bayonet base.
The 1157 is a dual-filament bulb rated at 12V with a 21W main filament and a 5W secondary filament, a configuration that supports two distinct brightness levels within a single housing.
The BAY15d base of the 1157 uses offset pins to prevent incorrect insertion, distinguishing it from the single-contact BA15s base found on the 67 bulb used in earlier front side marker positions.
All three bulb types specified for this vehicle, the 194, 67, and 1157, conform to ANSI standards recognized in both the US and Canada.