International 5600i Back Up Light Bulb Size

The International 5600i back up light requires a bulb with the 1156 size specification for proper installation and function. Data for the bulb size covers the range from 2011 to 2014.

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
2011-2014	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 5600i uses the 1156 bulb for the back up light across the 2011-2014 model years.
The 1156 is an ANSI-standardized bulb type, meaning its physical and electrical specifications are governed by a recognized North American standard shared across the US and Canada.
The 1156 operates on a 12-volt electrical system and draws 21 watts, which is consistent with standard incandescent automotive reverse light applications.
The 1156 is a single-filament bulb, meaning it serves one lighting function only, as opposed to dual-filament types that handle two functions such as braking and running light simultaneously.
The BA15s bayonet base on the 1156 features a single locating pin on the side of the base, which distinguishes it from the BA15d type that carries two offset pins. Substituting a dual-pin base bulb into a single-pin socket is not compatible.