2017 Ford Focus Headlight Bulb Size
Low beam
H7
High beam
H1
Order
2 × H7 + 2 × H1
Low beam takes a H7 and high beam takes a H1 — different bulbs, two of each. They are not interchangeable.
The 2012–2018 Focus uses these same bulbs — your 2017 sits in the middle of that run. See all Focus years.
2017 Ford Focus bulb chart
| Position | Bulb | Notes |
|---|---|---|
| Low beam | H7 |
Two bulbs, one per side. |
| High beam | H1 |
Different bulb from low beam — not interchangeable. |
| Factory HID | D3S |
Some Focus trims came with factory HID. D3S is a gas-discharge socket — a halogen or LED bulb will not fit it. |
Verified against factory service data and OEM bulb references.
Parts that fit the 2017 Ford Focus
Other vehicles that use the H7
These take the same low beam bulb, so the same bulb fits — only the housing differs.