Toyota Tacoma Headlight Bulb Size Guide (By Trim/Year)

Toyota Tacoma headlight bulb size depends mainly on generation and whether the truck has factory halogen or LED headlamps. For U.S.-market factory lighting, 2000–2015 Tacomas use an HB2/H4/9003 dual-filament headlight bulb, while 2016–2023 halogen-equipped trucks use H11 low beams and H9 high beams. Some 2020–2023 trims use integrated factory LED headlights, and fourth-generation 2024-and-newer trucks use LED headlight systems rather than conventional replaceable halogen headlight bulbs.

Last updated: September 19, 2026 — model-year fitment, fourth-generation LED service notes, U.S. retrofit guidance, sources, FAQ, and schema were rechecked.

Toyota Tacoma Headlight Bulbs by Year and Trim

The cleanest way to choose a Tacoma headlight bulb is to identify the generation first, then separate halogen-equipped trucks from factory LED trucks. The chart below reflects factory U.S.-market lighting and should still be checked against the bulb or assembly on the truck before purchase.

For the exact truck, start with the Toyota owner’s manual library. If the assembly or trim is unclear, a Toyota parts counter can identify the service part by VIN.

Bulb Sizes at a Glance: Low, High, Fog and DRL

Use this chart as a generation-level reference for factory U.S.-market lighting. A previous owner may have changed the headlamp assembly, so verify the hardware on the truck before ordering.

How Do You Check Your Tacoma’s Headlight Bulb Size?

Confirm the bulb three ways: use the owner’s manual, inspect the bulb or headlamp assembly, and verify the service part by VIN when the lighting package is unclear. This is more reliable than a generic online chart because Tacoma lighting changed by generation and, from 2020 onward, by trim and package.

Check the Owner’s Manual

Look for the exterior-light or light-bulb specification section for your exact model year. The manual will tell you whether a serviceable halogen bulb is listed and, on newer trucks, may direct LED headlight service to a Toyota dealer.

1. Confirm the Tacoma model year and trim.
2. Open the light-bulb or exterior-light section.
3. Check low beam, high beam, fog light, and DRL separately.
4. Compare the manual listing with the bulb or assembly on the truck before buying.

Check the Bulb From the Hood

The removal method depends on generation. On 2000–2015 trucks, the HB2/H4/9003 bulb sits behind a rubber cover and retaining spring. On 2016–2023 halogen headlights, the H11 low beam and H9 high beam use separate bulb positions. Factory LED assemblies do not use these conventional service bulbs.

1. Park on level ground, switch the lights off, and let the lamps cool.
2. Open the hood and locate the rear of the headlight assembly.
3. Identify whether you have a rubber-boot/spring-retainer H4 setup, separate twist-lock halogen bulbs, or an integrated LED assembly.
4. Disconnect the connector without pulling on the wiring.
5. Remove the bulb using the retainer method specified for that assembly.
6. Read the bulb code and wattage before ordering a replacement.

Verify by VIN or OEM Parts Lookup

Use a VIN-based Toyota parts lookup when the bulb marking is unreadable, the truck has factory LED lighting, or the headlamp may have been replaced. This is especially useful on 2020–2023 trucks because halogen and LED headlight configurations can exist within the same model-year range.

A connector that can be made to fit does not prove the bulb is correct. The factory bulb specification, electrical load, focal position, and headlamp optics all matter.

2005–2015 Tacomas: H4/9003 Headlight and DRL Fitment

Factory U.S.-market 2005–2015 Tacomas use one HB2/H4/9003 dual-filament halogen bulb per headlamp for both low and high beam. This is the major correction to the older version of this guide: these trucks do not use H11 low beams with 9005 high beams.

1. Low beam: HB2/H4/9003 dual-filament halogen.
2. High beam: the same HB2/H4/9003 bulb supplies the high-beam filament.
3. DRL: the daytime-running-light function is separate from the H4 headlight bulb on equipped 2005–2015 trucks; check the owner’s manual for the specific DRL/turn/parking bulb.
4. Fog light: many 2005–2011 trucks use 9145/H10, while 2012–2015 trucks commonly use H11; verify the exact fog-lamp assembly.

If you are replacing the headlight bulb, use the same factory bulb designation and wattage shown by the owner’s manual or existing bulb. If you want an LED upgrade for road use in the United States, read the legal section below before buying a bulb-only conversion.

2016–2023 Tacomas: H11 Low Beam, H9 High Beam and LED Packages

On third-generation Tacomas with factory replaceable halogen headlights, Toyota owner-manual data lists an H11 55-watt low beam and an H9 65-watt high beam. The previous 9005 high-beam listing was incorrect. Fog-light fitment is also more specific than a single “H11” answer: the 2016 manual lists H16 for the normal fog lamp and H11 for the wide-angle fog lamp.

The 2020 refresh added factory LED headlight availability on upper trims and packages. Toyota listed LED headlights as standard on the 2020 Limited and TRD Pro, with LED-headlight availability on TRD Sport and TRD Off-Road configurations. Trucks with those integrated LED headlights are not serviced by installing H11/H9 halogen bulbs.

2020–2023 Tacomas: How to Tell Halogen From Factory LED

Do not buy a 2020–2023 Tacoma bulb from model year alone. These years can have either replaceable halogen headlights or factory LED headlights depending on trim and equipment.

1. Check the rear of the assembly: a halogen headlamp has serviceable bulb access points; an integrated LED headlamp does not use the same H11/H9 replacement path.
2. Check the owner’s manual and VIN: confirm the exact factory lighting configuration before ordering.
3. For halogen headlights: match H11 low beam and H9 high beam to the factory specification.
4. For factory LED headlights: diagnose the module/assembly rather than trying to install a halogen-style replacement bulb.

IIHS documented both LED and halogen headlight variations on the 2020 Tacoma, reinforcing why trim/package identification matters in this model-year range.

2024 and Newer Tacomas: Factory LED Headlight Notes

The fourth-generation Tacoma launched for 2024 with LED headlight systems. Toyota’s 2024 owner information identifies an LED headlight system, and Toyota continues to advertise LED headlight equipment on current Tacoma models.

For these trucks, do not assume an H4, H11, H9, or 9005 bulb number applies. The service question is whether Toyota supplies a serviceable LED component or requires headlamp/module service for the exact trim and assembly.

If a fourth-generation Tacoma displays a headlight-system malfunction or has an LED headlight failure, use the model-specific owner’s manual and VIN-based parts information before disassembling the lamp.

LED vs HID for Tacomas: Fitment, Beam Pattern and U.S. Road-Legal Considerations

A brighter replacement is not automatically a safer headlight. The light source has to work with the reflector or projector, focal position, beam cutoff, thermal design, and aiming of the complete headlamp.

For U.S. road use, NHTSA has stated that LED replaceable light sources are not permitted in replaceable-bulb headlamps under FMVSS No. 108. LED light sources can be used as part of an integral LED headlamp that complies with the applicable standard. That makes a complete, properly certified LED headlamp assembly a different category from a plug-in LED bulb placed into a halogen headlamp.

HID conversions have a similar fitment problem when they substitute a different light-source type into a headlamp engineered for halogen. NHTSA has long stated that replacement headlighting equipment must comply with FMVSS No. 108 using the intended light source. For a street-driven Tacoma, keep the factory-specified halogen bulb or use a complete headlamp designed and certified for the application.

• Factory-halogen replacement: use the specified HB2/H4/9003, H11, H9, or fog-light bulb for the exact assembly.
• LED upgrade path: use a complete headlamp assembly whose manufacturer certifies compliance for the vehicle application.
• Do not rely on “DOT approved” wording: NHTSA does not pre-approve lighting products; DOT marking represents the manufacturer’s certification of compliance.
• After any headlamp change: verify beam aim, cutoff, connector security, and moisture sealing before night driving.

See NHTSA’s interpretation on LED replacement light sources and FMVSS No. 108 for the federal equipment standard.

Installation, Aiming, Legal Considerations and Troubleshooting

After replacing a serviceable bulb or headlamp assembly, test both beams before driving at night. A bulb can be the correct part number and still produce a poor beam if it is not fully seated or if the headlamp aim has changed.

How Should You Check Tacoma Headlight Aim?

Use a level surface and a flat wall, then follow the aiming procedure and reference marks specified for your Tacoma or replacement headlamp. Do not use a generic “slightly below the headlight” rule as the only target because the required cutoff position depends on the lamp design and aim markings.

1. Set tire pressures correctly and remove unusual cargo that changes ride height.
2. Park on a level surface facing a wall and identify the centerline of each headlamp.
3. Check the headlamp housing and owner/service information for the correct vertical and horizontal aiming reference.
4. Turn on low beams and confirm both cutoffs are stable and consistent.
5. Use the headlamp adjusters only as specified for the assembly.
6. Road-test after dark and recheck if the beam is too high, too low, or uneven.

Legal and Safety Considerations

Turn the lights off and let halogen bulbs cool before removal. Wear gloves, and do not touch halogen glass with bare fingers because contamination can shorten bulb life. Seat the bulb completely, restore any boot or dust seal, and lock the connector in place.

For U.S. street use, keep the headlamp/light-source combination compliant with FMVSS No. 108 and check applicable state rules. A product marketed for “off-road use only” should not be treated as a street-legal headlight replacement.

Quick Troubleshooting

If a replacement does not work, test the simple failure points before buying more parts.

• One halogen side is out: test with a known-good correct bulb or swap matching left/right bulbs if the design allows.
• Both halogen headlights are out: check the applicable fuse, relay, switch circuit, connectors, and grounds.
• Aftermarket LED conversion flickers or behaves oddly: reinstall the factory-spec bulb first. If normal operation returns, the retrofit is the problem.
• Beam looks scattered: confirm the bulb is fully seated and that the correct bulb type is installed.
• Moisture inside the housing: inspect boots, seals, cracks, vents, and assembly damage.
• Factory LED headlight fails: use the owner’s manual and diagnostic procedure for the LED headlight system rather than assuming there is a replaceable bulb.

The correct Tacoma lighting part is the one specified for the exact headlamp assembly. Bulb-base fit alone does not establish safe beam performance or legal compliance.

Related Guides

• How to Replace a Toyota Tacoma Headlight Bulb
• Halogen vs LED Headlights for Toyota Tacoma
• Tacoma Headlight Upgrades
• Car Light Bulbs

Frequently Asked Questions

What size are Toyota Tacoma headlight bulbs?

For factory U.S.-market trucks, 2000–2015 Tacomas use one HB2/H4/9003 dual-filament bulb per headlamp. Halogen-equipped 2016–2023 Tacomas use H11 low beams and H9 high beams. Some 2020–2023 trims use integrated LED headlights, and 2024-and-newer Tacomas use LED headlight systems.

What kind of headlight does a 2015 Toyota Tacoma have?

A factory 2015 Toyota Tacoma uses an HB2/H4/9003 dual-filament halogen headlight bulb. The same bulb provides both low and high beam. Toyota’s 2015 owner-manual specification lists a 60/55-watt HB2 halogen headlight.

What kind of headlight bulb does a 2018 Toyota Tacoma have?

A factory 2018 Tacoma uses an H11 55-watt low-beam bulb and an H9 65-watt high-beam bulb. Depending on equipment, the front fog lamp can be H16 or H11.

Can I install LED bulbs in Tacoma halogen headlights?

For U.S. road use, NHTSA has stated that LED replaceable light sources are not permitted in replaceable-bulb headlamps under FMVSS No. 108. If you want an LED conversion, the safer compliance path is a complete LED headlamp assembly designed and certified for the Tacoma application rather than an LED bulb placed in a halogen headlamp.

Do 2020–2023 Tacomas all use H11 and H9 bulbs?

No. Halogen-equipped 2020–2023 Tacomas use H11 low beams and H9 high beams, but Toyota also offered integrated LED headlights on certain trims and packages. Confirm the actual headlamp assembly before ordering bulbs.

Why does my new Tacoma headlight bulb not work?

Common causes include the wrong bulb designation, an incompletely seated connector, a blown fuse, a damaged socket, a wiring or ground fault, or an incompatible aftermarket conversion. Recheck the factory bulb specification and test with a known-good correct bulb before replacing more parts.

Conclusion

Toyota Tacoma headlight bulb fitment changes at clear generation and equipment breaks. Factory 2000–2015 trucks use an HB2/H4/9003 dual-filament halogen headlight. Factory 2016–2023 trucks with replaceable halogen headlights use H11 low beams and H9 high beams, while some 2020–2023 configurations use integrated LED headlights. Fourth-generation 2024-and-newer Tacomas use LED headlight systems.

Before buying, confirm the owner’s manual, bulb or assembly marking, and VIN-based Toyota parts listing. For U.S. road use, keep the light source matched to the headlamp design; use a complete compliant LED headlamp assembly rather than treating a plug-in LED bulb as equivalent to the original halogen source.

Sources

1. Toyota Owner’s Manuals — model-specific owner-manual library and service reference.
2. 2015 Toyota Tacoma Owner’s Manual mirror — HB2 60/55-watt headlight and H11 fog-lamp specifications.
3. 2016 Toyota Tacoma Owner’s Manual mirror — H11 low beam, H9 high beam, and H16/H11 fog-lamp specifications.
4. 2018 Toyota Tacoma Owner’s Manual mirror — H11 low beam and H9 high beam specifications.
5. Toyota USA Newsroom: 2020 Tacoma updates — factory LED headlight availability by trim/package.
6. Toyota 2024 Tacoma Owner’s Manual — fourth-generation LED headlight-system service context.
7. NHTSA interpretation: LED replacement light sources — federal treatment of LED sources in replaceable-bulb headlamps.
8. NHTSA interpretation: replacement headlighting and HID conversions — compliance and manufacturer-certification context.
9. 49 CFR § 571.108 — FMVSS No. 108 for lamps, reflective devices, and associated equipment.
10. IIHS: 2020 Toyota Tacoma headlights — separate LED and halogen headlight variations by trim.