The Chevrolet Express headlight bulb specifications include H6054 and 9005 sizes for high beam applications, along with H6054 and 9006 sizes for low beam applications. A replacement chart documents bulb size data spanning from 1996 through 2022 for this vehicle model.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chevrolet Express carries two distinct headlamp system types across its 1996-2022 model range: sealed beam and halogen capsule. Each system requires a different bulb entirely, and the two are not interchangeable.
Vehicles equipped with sealed beam headlamps use the H6054 for both high and low beam functions. The H6054 is a 5x7-inch rectangular unit operating at 12V. Because the lens, reflector, and filament are fused into a single assembly, the entire unit is replaced rather than an internal bulb.
The 9005 is the high beam bulb for Chevrolet Express models fitted with halogen capsule headlamps across the full 1996-2022 span. It is a single-filament halogen bulb rated at 12V and 65W, and it uses a P20d base.
The 9006 serves the low beam position in halogen capsule-equipped models across the same 1996-2022 range. It is also a single-filament halogen bulb at 12V, but draws 55W rather than 65W, and uses a P22d base.
The difference in wattage between the 9005 and 9006 reflects their intended roles. The higher-output 9005 at 65W is suited to the longer throw required for high beam use, while the 9006 at 55W is calibrated for the controlled, downward-angled pattern of a low beam.
The 9005 and 9006 use different base types, P20d and P22d respectively. This physical difference prevents one bulb from being seated in the socket intended for the other, making cross-installation mechanically restricted under standard conditions.
All three bulb types listed, the H6054, 9005, and 9006, conform to ANSI standards recognized in both the United States and Canada, placing them within a standardized specification framework shared across many North American vehicle applications.
Because the H6054 is a sealed beam unit and the 9005 and 9006 are replaceable capsule bulbs, the two headlamp systems on the Chevrolet Express represent fundamentally different service procedures. Sealed beam replacement involves removing the entire optical assembly, while halogen capsule service involves replacing only the internal bulb.