Chevrolet Suburban front fog light bulbs utilize 5202, 12278, and 880 sizes, while rear fog light bulbs use 1156 size specifications. The replacement chart covers vehicle production years spanning 1993 to 2020 with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The front fog lights of the Chevrolet Suburban draw from three distinct bulb families across its model history: the H3, the 880, the 5202, and the 12278, each using a different base type and wattage rating.
The H3 bulb follows the ECE standard used in Europe and worldwide, though it also carries approval in the United States and Japan. It operates at 12V and 55W, making it the highest-wattage front fog bulb in the Suburban's specification history. Its base type is PK22s.
The 880 is an ANSI-standard bulb rated at 12V and 27W, fitted with a PG13 base. It is a single-filament halogen type, as are all front fog bulbs listed in these specifications.
The 5202 bulb uses a PG20-3 base and is rated at 12V and 24W. It conforms to the ANSI standard applicable in the United States and Canada.
The 12278 is designated by a Philips part number rather than an ANSI or ECE standard code. It uses a PG18.5d-3 base and is rated at 12V and 26W. The Chevrolet Suburban (2015-2018) uses this bulb for the front fog light position.
The PG20-3, PG18.5d-3, and PG13 bases used by the 5202, 12278, and 880 respectively are not interchangeable, despite the similar wedge-style construction shared by that bulb family. Physical base differences prevent cross-fitment between these three types.
The model year 2000 Chevrolet Suburban carries a split specification for the front fog light, with the H3 assigned to early production units and the 880 assigned to late production units. Confirming the production date of a specific vehicle is necessary to determine the correct fitment.
The rear fog light specification applies exclusively to export-market 1500 trim vehicles from 2001-2006. The 1156 bulb used in that position operates at 12V and 21W, with a BA15s bayonet base, which is a physically distinct mounting style from all front fog bulbs listed in these specifications.
The BA15s bayonet base of the 1156 bulb is a single-contact design, consistent with its single-filament construction. This base type is common across many automotive lighting positions globally, though its use in the Suburban is confined to the rear fog application noted above.
The front fog light specification transitions from H3 to 880 between the 1999 and 2001 model years, and from 880 to 5202 between the 2006 and 2007 model years, representing two distinct base-type changes that affect physical socket compatibility.