2021 Subaru Impreza Bulb Size Chart
Bulb sizes may vary by trim, factory lighting package, region, production date, and previous modifications. Verify the bulb number on your existing bulb before buying.
Last database update: May 2026. Manual review status: Not yet manually reviewed.
Verify before buying: check the bulb number printed on your existing bulb, confirm your trim and factory lighting package, and review the seller's fitment notes.
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2021 Subaru Impreza Bulb Size Chart
| Position | Bulb Code | Aliases | Trim / Package | Factory Type | Confidence | Review | Notes | Shop |
|---|---|---|---|---|---|---|---|---|
| Low Beam | H11 | H8 / H9 / H16 | Standard listing | Halogen | High | Pending | Verify trim, factory lighting package, and the bulb number on the existing bulb. | |
| Fog Light | H11 | H8 / H9 / H16 | If equipped / package-dependent | Halogen | High | Pending | If equipped; fog light packages can vary by trim. | |
| High Beam | 9005 | HB3 | Standard listing | Halogen | High | Pending | Verify trim, factory lighting package, and the bulb number on the existing bulb. | |
| Turn Signal Front | 7440NA | — | Standard listing | Halogen | High | Pending | Verify trim, factory lighting package, and the bulb number on the existing bulb. |
2021 Subaru Impreza Fitment Notes
Across the 1993-2022 production range, our database shows changes in the listed Fog Light, High Beam, Low Beam positions. Use the chart above for this 2021 model, then confirm the bulb number in your vehicle before buying.
Known fitment limitations
- factory HID or LED packages may use different parts
- fog lights may depend on equipment package
- aftermarket headlight assemblies may use different bulbs
- regional models and production-date splits may differ
How do the 2021 Subaru Impreza's bulbs compare to other years?
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Other Impreza Years
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Other Vehicles That Use H11 / H8 / H9 / H16 Bulbs
H11 / H8 / H9 / H16 Comparisons
Frequently Asked Questions
Our database lists H11 for the 2021 Subaru Impreza low beam headlights. Verify the bulb number on your existing bulb and confirm your trim or factory lighting package before buying.
Our database lists 9005 for the 2021 Subaru Impreza high beam position. Some vehicles vary by trim, lighting package, or previous housing changes.
Dim headlights on a 2021 Subaru Impreza can come from aging halogen bulbs, cloudy lenses, weak electrical connections, or an incorrect bulb. Confirm the listed H11 size against the bulb in the housing before choosing a replacement or upgrade.
Our database lists H11 for the 2021 Subaru Impreza fog light position. Fog lights are often package-dependent, so verify that your vehicle is equipped with factory fog lights before ordering.
The 2021 Subaru Impreza uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.
LED upgrades are available for many H11 applications, but fitment, beam pattern, dashboard warnings, and road-use legality can vary. Use products that list your exact bulb family, such as H11 / H8 / H9 / H16, and verify the factory housing before buying.
Our database has a fog light entry for the 2021 Subaru Impreza: H11. Fog lights may still depend on trim or equipment package.
Yes — the 2021 Subaru Impreza uses different bulb sizes than the 2020 model. The 2021 generation introduced this bulb configuration.
The 2021 Subaru Impreza is the only year in the 2021 generation to use the H11 bulb for the low beam headlight.
Access varies by engine bay layout and headlight housing. Before disassembly, confirm the listed H11 low beam size on the existing bulb or owner's manual, then follow the service procedure for your exact trim.
Rules for LED headlight retrofits vary by location and by housing type. Avoid products that create glare or lack road-use compliance claims, and check local requirements before using an LED conversion on public roads.
Replacement cost depends on bulb technology, brand, and labor access. Common halogen H11 replacements are usually cheaper than LED conversion kits. Check seller fitment notes before comparing prices.
Halogen bulbs and LED replacements differ in output, heat behavior, beam pattern, and electronics. A correct bulb code does not guarantee a correct LED beam pattern, so verify physical fit and seller compatibility notes for the 2021 Subaru Impreza.