Jeep Compass Back Up Light Bulb Size

The Jeep Compass back up light utilizes 7440 and 921 bulb sizes depending on the specific version of the vehicle. Available data covers the range from 2007 through 2022.

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
2017-2022	7440
2011-2013	7440
2007-2010	921

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.	7440
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.	921

Other Locations

Additional Notes

The Jeep Compass backup light specifications cover model years 2007 through 2022, with two distinct bulb sizes used across that span.
The 7440 is the most frequently specified bulb in these listings, appearing across the 2011-2013 and 2017-2022 model years.
The 7440 is a single-filament wedge bulb in the T20 form factor, rated at 12 volts and 21 watts, and conforms to ANSI standards for the US and Canadian markets.
The 921 bulb is specified for the 2007-2010 Jeep Compass, and it is a wedge-type bulb in the T15 form factor, rated at 12 volts and 16 watts, also under ANSI standards.
The T20 and T15 designations refer to the outer width of the wedge base, with T20 being physically larger than T15, which means the two bulb types are not interchangeable despite sharing the same 12-volt operating voltage.
The wattage difference between the two bulbs is notable: the 7440 draws 21 watts while the 921 draws 16 watts, reflecting a higher light output rating for the 7440.
A fitment change occurs between the 2010 and 2011 model years, where the specified bulb shifts from the 921 to the 7440, making year verification important when sourcing a replacement.