International 9300 Back Up Light Bulb Size

The International 9300 back up light uses bulb size 1156 for the rear lighting system. Data for the specified component covers the range from 1988 to 1997.

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
1988-1997	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The International 9300 uses the 1156 bulb size for its back up light across the 1988-1997 model years.
The 1156 is an ANSI-standardized bulb type recognized in both the United States and Canada.
This bulb operates on a 12-volt electrical system and draws 21 watts.
The 1156 is a single-filament bulb, meaning it serves one lighting function rather than combining two, such as stop and tail.
It uses a BA15s bayonet base, where "BA15s" denotes a 15mm bayonet cap with a single contact pin at the base.
The BA15s base type is distinct from the BA15d, which carries two offset pins. Substituting a dual-contact bulb in a single-contact socket is not compatible.