Ford Flex high beam and low beam headlight bulbs utilize 9008 and D3S bulb sizes. The replacement chart covers vehicle production spanning 2009 to 2019.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
ECE standard (Europe & worldwide). Mercury-free HID (xenon) discharge bulb with PK32d-5 base and integral ignitor, for projector-type housings. 42V, 35W.
The Ford Flex headlight bulb specifications cover the 2009-2019 model years, with two distinct bulb types listed across both high beam and low beam positions: the 9008 for halogen capsule headlamp configurations and the D3S for HID headlamp configurations.
The 9008 is a dual-filament halogen bulb operating at 12V with a 65W high beam filament and a 55W low beam filament, fitted with a P26t base. Because it carries both filaments in a single capsule, it serves both the high and low beam functions within one unit.
The D3S is a mercury-free high-intensity discharge xenon bulb rated at 42V and 35W, using a PK32d-5 base with an integral ignitor. It is designed specifically for projector-type housings and operates on the ECE standard used in Europe and worldwide markets.
On the Ford Flex, the 9008 and D3S are not interchangeable. The 9008 is a halogen bulb requiring a standard reflector-type housing, while the D3S requires a projector-type housing and a dedicated HID ballast system. Fitment is determined entirely by which headlamp system the vehicle was built with.
The 9008 follows the ANSI standard applicable to the United States and Canada, whereas the D3S follows the ECE standard. These regulatory frameworks govern different electrical and photometric requirements, which is one reason the two bulb types are incompatible with each other's housings.
For the 2019 model year, only the halogen 9008 configuration is listed for both the high beam and low beam positions. The D3S HID option present in the 2009-2018 data does not appear in the 2019 entries.
Because the 9008 handles both high and low beam output through its dual filaments, a single bulb replacement covers both functions in halogen-equipped Ford Flex vehicles, unlike systems that use separate bulbs for each beam.
The integral ignitor built into the D3S bulb means the ignitor and the arc tube are replaced as one assembly, distinguishing it from older HID designs where the ignitor was a separate component mounted externally on the ballast or housing.