Jeep Grand Cherokee Dome Light Bulb Size

Additional Notes

• The 214-2 and 578 bulbs are the most frequently specified dome light types across the Jeep Grand Cherokee model years listed. Both are 41mm festoon bulbs rated at 12V and 12W, though they differ in base type: the 214-2 uses an SV8.5 base, while the 578 uses end-cap contacts.
• Because the 214-2 and 578 share the same 41mm length and wattage, they are physically close in size, but their differing contact types mean one is not a direct drop-in replacement for the other without confirming socket compatibility first.
• The 214-2 is specified for the Jeep Grand Cherokee across the 2014-2018 model years, making it the dominant fitment for that generation.
• The 578 is specified for the 2005-2010 model years, representing a consistent fitment across that six-year span.
• The 211-2 and 212-2 are also 41mm SV8.5-base festoon bulbs rated at 12V and 12W, placing them in the same technical category as the 214-2. The numeric suffix differences in ANSI festoon designations typically reflect minor contact or base variations rather than changes in physical length or wattage.
• The 1997 Grand Cherokee uses the 1003 bulb, which operates at a notably higher wattage of 21W and uses a BA15s bayonet base, making it technically distinct from all other dome light bulbs listed across the model range.
• The 1996 Grand Cherokee carries two separate dome light specifications depending on trim configuration: the 211-2 for the Chrome variant and the 74 for the Stocket variant. These two bulbs are not interchangeable, as the 74 is a T5 miniature wedge type rated at only 1.4W.
• The 1995 Grand Cherokee similarly splits between two bulb types by trim: the 561 for the Chrome variant and the 212-2 for the Stocket variant. The 561 is a 44mm festoon with end-cap contacts, while the 212-2 is a 41mm SV8.5-base festoon, so physical fitment differs between the two.
• The 192 and 161 bulbs, specified for the 2003 and 1999 model years respectively, are both T10 miniature wedge types but differ in wattage. The 192 is rated at 3W, while the 161 is rated at 1W, and neither is interchangeable with the festoon-type bulbs used in other model years.
• Across the full range of listed specifications, the Grand Cherokee dome light fitment spans at least seven distinct bulb types, reflecting changes in socket design and electrical requirements across different generations of the vehicle.