Peterbilt 224 Dome Light Bulb Size

The Peterbilt 224 dome light requires a bulb size of 97 for the interior lighting system. Data for the specified vehicle covers the period from 1987 through 1994.

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	Bulb Size
1987-1994	97 (With 2 Rectangular Headlamps)

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 13W.	97

Other Locations

Additional Notes

The Peterbilt 224 uses the 97 bulb for the dome light across the 1987-1994 model years, exclusively in configurations with 2 rectangular headlamps.
The 97 is an ANSI-standardized bulb recognized in both the United States and Canada, operating at 12 volts and 13 watts.
As a single-filament bulb, the 97 serves one lighting function only, with no secondary filament for a reduced-intensity mode.
The 97 uses a BA15s bayonet base, a single-contact mount where the bulb is inserted and twisted to lock into place.
The 97 is a variant of the 1156 bulb. While the two share the same BA15s base type, they are not identical, and substitution between them may not be appropriate in all applications.
The headlamp configuration noted in the specifications, specifically 2 rectangular headlamps, is a fitment qualifier for the Peterbilt 224, meaning dome light bulb compatibility is tied to that specific vehicle configuration.