OEM or Aftermarket LED Headlights for a 2016–2023 Tacoma?

Why “third-gen Tacoma” is not a complete headlight description

Toyota used several headlamp configurations during the 2016–2023 generation. The 2020 refresh expanded full LED availability: Toyota documented LED headlamps as standard on Limited and TRD Pro, available on TRD Sport and TRD Off-Road, and different equipment on lower configurations. The 2023 equipment matrix still separates projector-beam, LED-DRL and full-LED systems by grade and package. Review Toyota's 2020 lighting changes and 2023 Tacoma equipment matrix.

That creates at least three starting points a seller may describe:

• halogen/projector headlamp with conventional DRL;
• halogen projector with an LED DRL feature; or
• factory full-LED headlamp.

Do not choose a harness from the trim name alone. Photograph the current left and right headlamp labels and every vehicle-side connector, then compare them with the conversion documentation.

What a complete OEM-style conversion needs

A defensible conversion is a system, not two housings. Confirm all of the following before buying:

1. Left and right LED assemblies: Use exact Toyota service part numbers or a complete replacement pair explicitly listed for the truck and market.
2. Conversion harness: It must name the starting factory configuration and the destination assemblies. Connector count, keying and pin functions matter.
3. All lighting functions: Low beam, high beam, DRL, turn signal, side marker, parking lamp and any sequential function must behave as documented.
4. Vehicle controls: Confirm automatic high beams and dashboard indicators continue to operate without warnings or abnormal flashing.
5. Mounting and aim: The housings must mount without forced tabs or gaps, then be aimed using the lamp maker's procedure.

Morimoto's H128 instruction is useful evidence of the electrical boundary. It documents a separate 2016+ Tacoma OEM LED conversion harness and warns that incorrect connector orientation can blow a fuse or leave a headlamp inoperative. That supports a conversion path for the named harness—not a universal claim that every factory LED assembly fits every third-gen truck. See the H128 installation document.

Which 2020–2023 OEM LED pair are you buying?

Toyota's service-parts catalog separates two full-LED configurations. Do not mix sides or treat “2023 LED headlight” as one part:

Toyota lists left assembly 81150-04290; Toyota dealer catalogs list the matching right 81110-04290 and the sequential right 81110-04300 / left 81150-04300 pair.

These are replacement applications for Tacoma trucks equipped with those systems. The catalog does not say an earlier halogen Tacoma is retrofit-approved. That is why the conversion harness and full function test remain separate requirements.

Is OEM better than a complete aftermarket assembly?

Choose by documentation and priorities, not by the word “LED.”

• OEM can be the better path when factory appearance and Toyota service components matter, and the seller can provide the correct matched pair plus a harness documented for your starting lights.
• A complete aftermarket assembly can be the better path when its maker explicitly supports your year and starting configuration, includes the needed connector logic, documents every function and provides replacement/warranty support.
• Neither is a good path when the seller cannot identify the starting light type, exact pair, functions or compliance status.

One named example shows the distinction. Morimoto documents its XB Evo Hybrid LF2-530Y complete assemblies for North American 2016–2023 Tacoma submodels, including low, high, park, turn and DRL functions, and states that the standard drivers meet FMVSS 108. The same page warns that its optional “Supercharged” drivers are not compliant for on-road use in the United States or Canada. Review the manufacturer's XB Evo Hybrid application and compliance notes.

That is evidence for this named assembly only. It does not establish that aftermarket headlights as a category are easier, brighter, more durable or street legal.

Complete LED assemblies are different from LED replacement bulbs

Do not confuse an OEM-style LED headlamp conversion with placing an LED bulb in the original halogen projector.

NHTSA treats a complete integral-beam LED headlamp as a complete optical system. In a 2024 interpretation, the agency also stated that no LED replaceable light source was then permitted for use in a replaceable-bulb headlamp under FMVSS No. 108. State rules and individual installations add another layer, but the federal distinction is clear: a complete compliant LED headlamp and an LED bulb in a halogen housing are not interchangeable approaches. Read NHTSA's interpretation.

This guide therefore does not approve bulb-only conversions. Use complete assemblies whose maker documents the vehicle application and compliance, then follow local requirements.

Will every factory feature carry over?

Unknown until the exact pairing is documented. A harness may make the main beams illuminate while leaving a DRL, marker or sequential signal wrong. Conversely, a conversion made for full-halogen trucks may not be the right harness for a truck that already has an LED DRL.

Before final assembly, perform a function check with the vehicle stationary:

• low and high beams;
• left and right turn signals;
• hazard lamps;
• DRL and parking/marker lamps;
• automatic high-beam operation where equipped;
• dashboard warnings and turn-signal flash rate.

If any function differs from the assembly or harness instructions, stop. Do not repin connectors or add resistors based on a generic wiring diagram.

Compatibility snapshot

Before you buy

Send the supplier a configuration-specific question: “I have a 2019 Tacoma TRD Off-Road with the photographed factory connectors. Will these exact left/right assemblies and this harness retain low beam, high beam, DRL, turn signal, marker and automatic-high-beam functions without cutting the factory wiring?”

Ask for the installation document and compliance markings, not only a photo of the finished truck. If the seller cannot identify the starting factory headlamp, the pairing remains unverified.

Bottom line

A complete, documented halogen-to-LED conversion can be possible on a 2016–2023 Tacoma, but OEM is not automatically better and aftermarket is not one uniform category. OEM requires the correct 04290 or 04300 pair plus a documented harness; an aftermarket option must earn consideration with its own exact application, function and compliance records. Either way, test every function and aim the lamps correctly.

For the model-year boundary behind these configurations, see what changed in the 2020 third-gen Tacoma refresh.

Sources & notes

• Toyota: 2020 Tacoma upgrades, accessed 2026-10-15. Establishes grade-dependent factory LED availability at the 2020 refresh; it does not approve a retrofit.
• Toyota: 2023 Tacoma eBrochure, accessed 2026-10-16. Establishes multiple projector, LED-DRL and full-LED factory configurations by grade/package.
• Toyota and Toyota dealer service-parts catalogs: 81110/81150-04290 and 81110/81150-04300, accessed 2026-10-16. Identify non-sequential and sequential 2020–2023 factory full-LED service pairs; they do not approve a retrofit on a halogen truck.
• Morimoto: H128 2016+ Tacoma OEM LED conversion-harness instructions, accessed 2026-10-15. Documents a named harness path and connector-orientation warning; it is not Toyota approval for every assembly/VIN combination.
• Morimoto: XB Evo Hybrid LF2-530Y, accessed 2026-10-16. Documents one complete aftermarket application, functions and compliance boundary; it does not generalize to other aftermarket assemblies.
• NHTSA: LED headlamp interpretation 571.108--NCC-230201-001, accessed 2026-10-15. Distinguishes complete integral-beam LED headlamps from LED replaceable light sources in replaceable-bulb headlamps under U.S. federal requirements.