What size headlight bulb for Subaru Legacy?
Most Subaru Legacy models with traditional halogen headlights use H11 for low beams, 9005 (HB3) for high beams, and H16 for fog lights. However, bulb sizes can vary by year, trim, and market, and newer models with LED or HID systems may not use replaceable bulbs.
To determine the exact bulb size for your specific vehicle, check the owner's manual, inspect the headlight assembly for a label, or remove the existing bulb to read the size printed on the base. If you’re unsure, an auto parts store or Subaru dealer can verify the correct size using your VIN.
Common headlight bulb sizes by function
These sizes reflect typical halogen Legacy configurations, but always verify for your exact model and year.
- Low-beam headlight: H11
- High-beam headlight: 9005 (HB3)
- Fog lights: H16 (some models/markets may use H11)
Note: Sizes can differ across generations and regions. If your Legacy has LED or HID headlights, the bulbs may not be replaceable in the same way, or the system may use a different component.
How to verify the exact bulb size for your Legacy
Use these steps to confirm the correct bulb size for your exact vehicle configuration before purchasing replacements.
- Consult the owner's manual or the headlight/bulb chart on the vehicle’s information label (often found on the door jamb or inside the fuse/relay box).
- Remove the existing bulb and read the size printed on the base, or note the model number stamped on the bulb.
- Check a trusted parts database or Subaru dealer database by entering the year, trim, and market (US, EU, etc.).
- Bring the old bulb or the vehicle’s VIN to an auto parts store to confirm compatibility and avoid ordering the wrong part.
- If upgrading to LED/HID, verify compatibility with wiring, ballast (if applicable), and local regulations before purchasing.
Following these steps helps ensure you get the right bulb for your Subaru Legacy, minimizing returns and misfits.
Summary
Bulb sizes for the Subaru Legacy vary by year, trim, and lighting system. In many halogen configurations, common sizes are low-beam H11, high-beam 9005, and fog light H16, but always verify against your specific vehicle. For models with LED or HID headlights, bulbs may not be user-replaceable, so consult the manual or dealer for guidance. Always check the exact size before purchasing.
Is H11 a high or low beam?
An H11 bulb is a low beam or fog light bulb, not a high beam. It is designed with a single filament and a specific L-shaped base to provide a focused, but not overly bright, beam that illuminates the road ahead without dazzling oncoming drivers. High beams are typically handled by a different type of bulb, like the 9005 (HB3).
- Purpose: H11 bulbs are meant for low beams and fog lights.
- Beam pattern: The design creates a balanced beam pattern that improves visibility without causing glare for other drivers.
- Distinction from high beams: High beam applications use different bulbs that are more powerful and often have a higher wattage and lumen output, such as the 9005 (HB3) bulb.
- Interchangeability: H11 bulbs and high beam bulbs are not interchangeable because they have different base types and wiring harnesses.
What kind of headlight bulb is in the 2019 Subaru Legacy?
Sylvania Basic Headlight Bulb H11.
What kind of bulbs are in Subaru headlights?
The Subaru headlight bulb type varies by model and year, but common sizes include H11 for low beams and 9005 (HB3) for high beams on many models, such as the 2015-2019 Outback and 2017-2018 Impreza. Other models may use different bulbs, like the H7 on some older Outbacks. Always check your owner's manual or use a vehicle-specific compatibility tool to confirm the correct type for your car.
Common Subaru headlight bulb types by model
- 2015-2019 Subaru Outback:
- Low Beam: H11
- High Beam: 9005 (HB3)
- 2017-2018 Subaru Impreza:
- Headlight (Low Beam): H11
- 2009-2012 Subaru Outback:
- Low Beam: H7
Important considerations
- Check your specific vehicle: Bulb types can differ even within the same model year depending on the trim level. The best way to be sure is to check your owner's manual or use an online bulb finder tool from a parts retailer.
- Replace bulbs in pairs: It's recommended to replace both headlight bulbs at the same time to ensure even brightness and performance.
- Avoid touching the glass: When handling new bulbs, avoid touching the glass with your bare hands. Oils from your skin can cause the bulb to overheat and fail prematurely.
What size headlight bulb for 2015 Subaru Legacy?
The 2015 Subaru Legacy uses H11 bulbs for the low beams and 9005 bulbs for the high beams. The Subaru Genuine Part numbers are 84920YA000 for the low beam and 84920PA000 for the high beam.
- Low Beam: H11 (Part # 84920YA000)
- High Beam: 9005 (Part # 84920PA000)
