The Jeep Cherokee fog light utilizes H3 and 7444NA bulb sizes for the front illumination system. Data for the specified lighting components covers the period from 1995 through 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
ANSI and ECE standard (US, Canada & worldwide). Single-filament halogen bulb with PG20-7 base. Recognized in both US and European regulations. 12V, 24W.
The PSX24W is the most frequently specified front fog light bulb across the Jeep Cherokee, covering model years 2014-2019. It is a single-filament halogen bulb rated at 12V and 24W, fitted with a PG20-7 base, and recognized under both ANSI and ECE standards, making it suitable for vehicles sold in the United States, Canada, and international markets.
The H3 bulb is specified for the Jeep Cherokee front fog light across model years 1995-2001. It is a single-filament halogen bulb with a PK22s base, rated at 12V and 55W, operating at more than twice the wattage of the PSX24W used in later model years.
The 7444NA is a dual-filament wedge bulb in the T20 form factor, rated at 12V with a 21W main filament and a 5W secondary filament. Its natural amber glass construction produces a yellow-tinted output without the use of a separate amber lens or coating.
The 7444NA bulb is specified for the Jeep Cherokee (2019) as a front fog light option alongside the PSX24W, making 2019 the only model year in the front fog light specifications where two different bulb sizes are listed.
The 7444NA is also the specified bulb for the rear fog light on the Jeep Cherokee for model years 2017-2018, representing its only rear fog light application within these specifications.
The PSX24W and H3 are both single-filament halogen bulbs, but they use different base types, the PG20-7 and PK22s respectively, meaning they are not interchangeable despite sharing a similar function and operating voltage.
The H3 bulb carries ECE approval and is also approved for use in the United States and Japan, while the PSX24W holds both ANSI and ECE recognition. The 7444NA is approved under ANSI standards for the United States and Canada.
The PG20-7 base of the PSX24W and the PK22s base of the H3 are physically distinct connector types, and substituting one bulb for the other in a fog light housing would require a different socket configuration.
The 7444NA's dual-filament design contrasts with the single-filament construction of both the PSX24W and H3, which means the 7444NA is capable of serving two brightness levels within a single bulb, a characteristic the other two types do not share.
Among the three bulb types specified, the H3 draws the highest wattage at 55W, while the PSX24W draws 24W and the 7444NA draws either 21W or 5W depending on which filament is active.