Chevrolet C-Series Pickup Stepwell Bulb Size

Chevrolet C-Series Pickup stepwell bulbs utilize 168 and 194 bulb sizes for illumination in the stepwell area. The replacement chart covers vehicle production spanning 1995 to 2000.

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	US Type	EU Type	Shop
1995-2000	168 (Door Light)	W5W	Check Price
1995-2000	194 (Stepwell Light)	W5W	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). Miniature wedge bulb (T10). 12V, 3.78W.	194	Check Price

Other Locations

Additional Notes

The Chevrolet C-Series Pickup uses two bulb types across its door and stepwell lighting positions for the 1995-2000 model years: the 168 for the door light and the 194 for the stepwell light.
Both the 168 and 194 are ANSI-standardized miniature wedge bulbs sharing the T10 form factor and a 12-volt operating voltage, which places them in the same physical bulb family.
Despite sharing the same T10 wedge base and voltage rating, the 168 and 194 differ in wattage. The 168 draws 4.9 watts, while the 194 draws 3.78 watts, making them electrically distinct.
Because the 168 and 194 share the T10 wedge base, they are physically interchangeable in the socket, but substituting one for the other introduces a wattage mismatch relative to the original circuit design for each position.
The T10 wedge base is a push-in, pinless connection type, meaning the bulb is retained by the tension of the socket contacts against the base rather than by a bayonet or screw mechanism.
Both bulb types carry ANSI standardization applicable in the United States and Canada, indicating conformance to a defined set of performance and dimensional criteria recognized across North American markets.