Chevrolet S10 License Plate Bulb Size

Additional Notes

• The Chevrolet S10 license plate bulb specifications cover model years 1982 through 2004 and reference four distinct bulb sizes: 192, 168, 194, and 67.
• The 194 is the most frequently specified bulb across this vehicle, appearing in 1982-1985, 1987-1997, covering the majority of the model years listed.
• The 194 is an ANSI-standard miniature wedge bulb of the T10 type, rated at 12V and 3.78W, and is among the most widely used automotive bulb sizes in North American vehicles.
• The 192 is specified for the 2004 model year. It shares the same T10 wedge form factor as the 194 but operates at a lower wattage of 3W, making it a physically similar yet electrically distinct part.
• The 168 is specified for the 1998 model year. It is also a T10 miniature wedge bulb rated at 12V but draws 4.9W, the highest wattage among the T10 variants listed in these specifications.
• Although the 192, 168, and 194 all share the T10 wedge base and 12V rating, their wattage values differ, which means they are not direct electrical equivalents despite their physical interchangeability in the socket.
• The 1986 Chevrolet S10 uses the 67 bulb, which differs fundamentally from all other years listed. The 67 uses a BA15s single-contact bayonet base rather than a wedge base, making it physically incompatible with T10 wedge sockets.
• The 67 bulb is rated at 8W, more than double the wattage of the 194 and significantly higher than any of the T10 variants in these specifications, as it is a lower-wattage variant of the 1156 bulb family.
• All four bulb sizes listed carry ANSI standardization applicable to both the United States and Canada, indicating conformance to a shared North American automotive lighting standard.
• The single-year appearances of the 192 (2004), 168 (1998), and 67 (1986) represent isolated fitment cases within the broader S10 license plate bulb history, each requiring a part distinct from the 194 used across most other years.