International B132 Back Up Light Bulb Size

The International B132 back up light requires a bulb size of 199 for proper installation. Data for the specified component covers the range from 1959 to 1960.

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
1959-1960	199 (Light Duty)

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Variant of 1156. 12V, 21W.	199

Other Locations

Additional Notes

The 199 bulb is the sole backup light bulb size listed for the International B132, covering the 1959-1960 model years under the Light Duty classification.
The 199 is an ANSI-standardized bulb recognized in both the United States and Canada, operating at 12 volts and 21 watts with a single filament.
It uses a BA15s bayonet base, which is a single-contact bayonet mount with a 15mm collar width, distinguishing it from dual-contact bayonet variants.
The 199 is a variant of the 1156 bulb family, meaning it shares the same BA15s base configuration, though cross-substitution depends on whether the wattage and voltage ratings align with the specific application.