The typical setup for a 2018 Focus with standard halogen headlights uses H11 for the low beams and 9005 (HB3) for the high beams, with fog lights commonly using H11 if equipped. Exact bulb types can vary by market and trim, and some models may have HID or LED headlights that use different replacement components. Always verify with the owner’s manual or a trusted bulb finder to confirm the right bulb for your car.
Understanding your 2018 Focus headlight options
Headlight configurations in the 2018 Focus vary by region and trim level. Knowing your specific setup helps you buy the correct bulbs without guessing.
Common halogen configurations (typical in US-spec Focus models)
Here are the typical bulb types used for most 2018 Focus models with halogen headlights. If you have a different market or a different trim, the bulbs can differ.
- Low beam: H11
- High beam: 9005 (HB3)
- Fog lights (if equipped): often H11; some markets use alternative fog lamps such as H16, so verify on your car
If your current bulbs have markings that differ, or your headlight assembly appears different, consult the manual or a trusted parts finder to confirm the exact specification.
How to confirm the exact bulb for your car
To be certain you buy the correct bulb, use these verification steps before purchasing replacements.
- Check the Exterior Bulbs section of your owner’s manual for the exact bulb specification for your model and trim.
- Inspect the bulb in your headlight or the label on the back of the headlight assembly for the bulb code.
- Use Ford’s official bulbs catalog or a reputable online bulb finder (e.g., Philips, Sylvania) by entering year, make, model, and trim to retrieve the recommended bulb type.
- If in doubt, contact a Ford dealer or a qualified automotive lighting specialist to confirm the correct bulb type and fitment.
Following these steps will ensure you purchase the correct bulb without risking fitment or performance issues.
What about HID or LED headlights?
Some 2018 Focus trims in certain markets offer HID or LED headlamps. In those cases, you may not replace bulbs with standard halogen bulbs. HID systems typically use ballast-assisted bulbs (e.g., D2S/D3S-type), while LED headlights use integrated modules that may require non-replaceable bulbs or whole assemblies. Check your exact vehicle specification to determine whether your headlights are halogen, HID, or LED, and follow the guidance in the owner’s manual or from the manufacturer for replacements.
Summary
For the majority of 2018 Ford Focus models with standard halogen headlights, you’ll typically need H11 for the low beams, 9005 for the high beams, and H11 for fog lights if equipped. Always verify using the owner’s manual, the label on your current bulbs, or a trusted online bulb finder to avoid incorrect purchases. If your car has HID or LED headlights, replacement considerations differ, and you should follow the specific guidance for those systems.
What headlight bulb do I need for a Ford Focus?
Ford Focus Sedan (2015-2018) Bulb Size Chart
| Headlights (High Beam) | H1 |
|---|---|
| Headlights (Low Beam) | H11 (H8 H9) |
| Front Fog Lights | H11 (H8 H9) |
| Reverse Light (Back-Up Light) | T15 (912 921) |
| Brake Light | 3157 (3156) |
Do I need H11 or 9005?
H11 bulbs are designed for use as low beam headlights, while 9005 bulbs are typically used for high beams. This results in a higher brightness level for the 9005 bulbs compared to the H11 bulbs.
How often should a Ford Focus engine be serviced?
Ford Focus Service Intervals
| Engine oil | When indicated or every 12-months |
|---|---|
| Oil filter | With engine oil |
| Engine air filter | Every 30,000 miles |
| Coolant | After 100,000 miles |
| Spark plugs | After 100,000 miles |
What headlight bulb does a Ford Focus use?
compatible with Ford Focus 2012-2018 Lights Headlights Bulbs, H1 High Beams + H11/H9/H8 Low Beam Halogen Headlights and H11 Fog Light, 6 PCS.


