Chevrolet K-Series Pickup front side marker bulbs utilize 194, 168, or 67 size configurations, while rear side marker bulbs employ 168 or 1895 size specifications. The replacement chart covers 1975 to 2000 production years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 194 bulb is the most frequently specified front side marker bulb across the Chevrolet K-Series Pickup, covering model years 1985-2000 with the exception of 1984, as well as 1988-1989. It is an ANSI-standard miniature wedge bulb in the T10 form factor, rated at 12V and 3.78W.
The 168 bulb shares the same T10 wedge form factor as the 194 but draws more power at 4.9W versus 3.78W. Despite this physical similarity, the two are not the same specification, and substituting one for the other affects the wattage delivered to the circuit.
The 168 bulb appears in both the front and rear side marker positions of the K-Series Pickup. It is the front side marker bulb for 1980-1984 and the rear side marker bulb for 1975-1979 and 1985-1986.
The 1991-1990 front side marker entries carry a conditional note specifying the 194 bulb applies only to trucks equipped with halogen capsule headlamps, indicating that headlamp configuration was a relevant factor in bulb fitment for those years.
The 97 bulb, specified for the front side marker on the Chevrolet K-Series Pickup in 1975-1978, uses a BA15s bayonet base rather than a wedge base. This base type is physically incompatible with T10 wedge sockets, making it a distinct fitment from the 194 and 168 bulbs used in later years.
The 67 bulb, used in the 1979 front side marker position, also uses a BA15s bayonet base but is rated at 8W, placing it between the 97 (13W) and the T10 wedge bulbs in terms of power draw. It is a lower-wattage variant within the same bayonet base family as the 97.
The 1895 bulb, specified for the 1980 rear side marker, is a T5 miniature wedge type rated at only 0.9W. This makes it the lowest-wattage bulb in the entire specification set and places it in a smaller physical form factor than the T10 wedge bulbs used elsewhere in the same vehicle's marker lighting.
The front side marker position shows three distinct base types across the full model range: the BA15s bayonet base (1975-1979) and the T10 wedge base (1980 onward). Within the wedge base years, two different wattage ratings apply depending on the specific year.
All bulbs listed across both the front and rear side marker positions conform to ANSI standards applicable in both the United States and Canada, indicating consistent regulatory compliance across the full specification range.
The rear side marker specifications cover a narrower range of years than the front, and the 1980 rear side marker uses the 1895 T5 wedge bulb, which is a different form factor from the 168 T10 wedge bulbs specified for all other listed rear side marker years.