Peterbilt 353 Dome Light Bulb Size

The Peterbilt 353 dome light requires a bulb size of 97 for the interior lighting fixture. Data for the specific component covers the range from 1986 to 1988.

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
1986-1988	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 bulb type 97 is an ANSI-standardized single-filament bulb rated at 12 volts and 13 watts, fitted with a BA15s bayonet base.
The Peterbilt 353 used the 97 bulb for the dome light across the 1986-1988 model years, exclusively in configurations with 2 rectangular headlamps.
The BA15s base designation indicates a single-contact bayonet fitting with a 15mm base width, which is not interchangeable with dual-contact bayonet variants such as the BA15d.
The 97 bulb is a variant of the 1156, though the two are not directly interchangeable due to differences in wattage and application ratings despite sharing the same base type.