Ford Maverick Side Marker Bulb Size

Ford Maverick front and rear side marker bulbs utilize 3 distinct sizes including 12961, 194, 161, WT21/7W, and 4257NA across different positions and model variations. The replacement chart covers vehicle production spanning from 1970 to 2026 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.

Front Side Marker

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2022-2026	12961	12961	Check Price
1975-1977	194	W5W	Check Price
1970-1974	161	161	Check Price

Rear Side Marker

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2025-2026	WT21/7W	WT21/7W	Check Price
2022-2024	4257NA (Low series (XL/XLT), WT21/7W on High series (Lariat))	PY27/7W	Check Price
1975-1977	194	W5W	Check Price
1970-1974	161	161	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W.	161	Check Price
Ford OEM part. Dual-filament wedge bulb (T20). Originally used in 2021+ Ford F-150, Bronco, and Maverick. 12V, 21W/7W.	WT21/7W	Check Price
ANSI standard (US & Canada). Dual-filament wedge bulb, natural amber glass. 12V.	4257NA	Check Price

Other Locations

Additional Notes

The Ford Maverick uses five distinct bulb types across its front and rear side marker positions: the 12961, 194, 161, WT21/7W, and 4257NA.
The T10 wedge form factor is the most recurring across the specifications, covering the 12961, 194, and 161 bulbs used in both front and rear side marker positions on the 1970-1977 and 2022-2026 model years.
The 12961 is a Philips-branded part rather than an ANSI-standardized bulb number, carrying a W2.1x9.5d base rating at 12V and 5W, and it serves as the front side marker bulb for the 2022-2026 Ford Maverick.
The 194 and 161 are both ANSI-standard T10 miniature wedge bulbs, though they differ in wattage: the 194 draws 3.78W while the 161 draws only 1W, making them non-interchangeable despite sharing the same physical form factor.
The rear side marker on the 2022-2024 Ford Maverick varies by trim level: the XL and XLT use the 4257NA, while the Lariat uses the WT21/7W, meaning the same model year carries two different rear bulb specifications depending on the series.
The WT21/7W is a Ford OEM dual-filament T20 wedge bulb rated at 12V with a 21W/7W split across its two filaments, a significantly higher wattage than any other bulb type listed in these specifications.
Starting with the 2025 model year, the rear side marker standardizes exclusively on the WT21/7W across all trim levels, eliminating the trim-based split that existed in 2022-2024.
The 4257NA features natural amber glass as part of its construction, which produces the amber color required for side marker compliance without relying on a colored lens or socket filter.
The WT21/7W is noted as originally used in the 2021+ Ford F-150 and Bronco, indicating shared OEM bulb sourcing across multiple Ford platforms alongside the Maverick.
The 1970-1974 Maverick used the 161 bulb in both front and rear side marker positions, while the 1975-1977 Maverick used the higher-wattage 194 in both positions, representing a wattage increase of approximately 2.78W between those two generations.