The Freightliner Sprinter front fog light bulb size includes H11, H1, and H3 options, while the rear fog light bulb size is P21W. The replacement chart covers 2002 through 2021 vehicle production years 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.
The Freightliner Sprinter uses three distinct front fog light bulb types across its model years: H11 for 2007-2018, H1 for 2005-2006, and H3 for 2002-2004. The rear fog light position uses the P21W bulb for 2019-2021.
The H11 is the most consistently specified bulb across the front fog light position, covering a twelve-year span from 2007 to 2018. It is a single-filament halogen bulb rated at 12V and 55W, built to the ECE standard and also approved for use in the United States.
The H11 bulb uses a PGJ19-2 base, which is a locking connector type specific to the H11 family. This base is not interchangeable with the P14.5s base found on the H1 or the PK22s base found on the H3, meaning bulbs from earlier Sprinter model years cannot be substituted into 2007-2018 front fog light sockets.
The H1 bulb, specified for the 2005-2006 front fog light position, shares the same 12V, 55W electrical rating as the H11 and H3 but uses a P14.5s single-pin base. Despite the identical wattage, the differing base type makes it physically incompatible with H11 or H3 sockets.
The H3 bulb, used in the 2002-2004 front fog light position, features a PK22s base, which is a single-pin metal base distinct from both the P14.5s of the H1 and the PGJ19-2 of the H11. All three front fog light bulb types operate at 55W, but their base designs prevent cross-year substitution.
The H1, H3, and H11 bulbs all carry ECE certification and are approved for use in the United States, reflecting a regulatory standard common across the Sprinter's fog light specifications throughout its listed model years.
The P21W rear fog light bulb operates at 12V and 21W, a notably lower wattage than the 55W halogen bulbs used in the front fog light position. It uses a BA15s bayonet base, which is a single-contact bayonet fitting widely associated with signalling and indicator applications rather than forward illumination.
The P21W is classified as a signalling bulb under the ECE standard, distinguishing it functionally from the halogen bulbs used in the front fog light position. Its BA15s bayonet base is not compatible with any of the pin or locking bases used by the H1, H3, or H11 bulbs specified elsewhere in the Sprinter fog light data.