Jeep Dispatcher Back Up Light Bulb Size

The Jeep Dispatcher back up light uses a 1156 or 1073 bulb size depending on the specific model configuration. The replacement chart covers vehicle production spanning 1961 to 1968 with corresponding bulb size specifications.

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
1965-1968	1156
1964	1073
1962-1963	1156
1961	1073

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	1073

Other Locations

Additional Notes

The back up light bulbs specified for the Jeep Dispatcher across the 1961-1968 model years are drawn exclusively from two ANSI-standard bulb types: the 1156 and the 1073.
The 1156 is a single-filament bulb rated at 12V and 21W, fitted with a BA15s bayonet base, and recognized under ANSI standards in both the US and Canada.
The 1073 shares the same BA15s bayonet base and 12V operating voltage as the 1156 but draws significantly less power at 13W, making it a lower-wattage variant within the same bulb family.
The 1156 is the more frequently specified bulb, covering the 1962-1963 and 1965-1968 model years of the Jeep Dispatcher.
The 1073 is specified for the 1961 and 1964 model years, representing isolated fitments within an otherwise 1156-dominant application range.
Because both bulb types share the BA15s bayonet base, they are physically interchangeable in terms of socket fitment, but their wattage difference means they are not electrically equivalent replacements for one another.
The wattage gap between the two bulbs is notable: the 1156 produces roughly 62 percent more light output power than the 1073, which can affect the brightness of the back up light in practice.
Substituting a 1156 in a socket specified for a 1073 may place higher electrical demand on the circuit than the original design intended for those model years.