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Forward Lighting
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Exterior Lighting
- Back Up Light Bulb » 7440
- Brake Light Bulb » 3157
- Center High Mount Stop Light Bulb » 921
- Daytime Running Light Bulb (w/halogen capsule headlamps) » 4157NA
- License Plate Light Bulb » 168
- Parking Light Bulb (w/halogen capsule headlamps) » 4157NA
- Side Marker Light Bulb Front » 168
- Side Marker Light Bulb Rear » 3157
- Tail Light Bulb » 3157
- Turn Signal Light Bulb Front (w/halogen capsule headlamps) » 4157NA
- Turn Signal Light Bulb Rear » 921
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Interior Lighting
2018 Toyota Tundra Headlight Bulb Size
Toyota made the 2018 Tundra the safety milestone year by making Toyota Safety Sense P standard across the entire lineup, pairing the bulletproof 5.7L V8 with automatic emergency braking, lane departure warning, and adaptive cruise control. The new TRD Sport trim also joined the roster, giving buyers a street-oriented performance option. The 2018 Toyota Tundra headlight bulb size is H11 for the low beams, 9005 for the high beams, and H16 for the fog lights. SR and SR5 trims shipped with halogen headlights, while Limited and Platinum trims included factory LED headlights.
For the halogen-equipped SR and SR5 trims that make up the bulk of working Tundras on the road, the factory bulbs struggle to illuminate dark job sites and country highways the way a truck this capable deserves. Switching to 2018 Toyota Tundra LED headlights gives those trims the same bright, white beam quality that the higher trims enjoy from the factory.
How to Upgrade the 2018 Tundra Headlights
The 2018 Tundra's engine bay offers generous clearance behind both headlight assemblies, and the bulb access design is as straightforward as it gets for a full-size truck. LED kits plug into the factory H11 low beam and 9005 high beam sockets without adapters, wiring splices, or housing modifications. You get clean white output, instant on-off response, and a rated lifespan measured in decades of normal driving rather than months.
Tundra owners who tow heavy and drive distances at night should also consider HID conversion kits. The xenon arc source generates a dense beam with outstanding throw distance, and the 2018 Tundra's reflector housings on the SR and SR5 respond well to the increased lumen output. A compact ballast mounts behind each housing, and most owners complete the full installation in under an hour.
All HID Nation kits come with free shipping and a lifetime warranty. The Tundra is known for going the distance, and your headlights should keep pace.
Frequently Asked Questions
What size headlight bulb does the 2018 Toyota Tundra take?
The 2018 Toyota Tundra uses an H11 bulb for the low beams, a 9005 bulb for the high beams, and an H16 bulb for the fog lights. Halogen-equipped trims (SR and SR5) benefit the most from an LED or HID conversion since the Limited and Platinum trims already include factory LED headlights.
Does the 2018 Tundra already have LED headlights?
It depends on the trim. The 2018 Tundra Limited and Platinum come with factory LED headlights. The SR, SR5, and TRD Sport trims use halogen H11 low beams and 9005 high beams. If your Tundra has halogen headlights, an LED conversion kit is a direct plug-and-play replacement that dramatically improves brightness and beam quality.
Will Toyota Safety Sense work with aftermarket LED headlights on the 2018 Tundra?
Yes. Toyota Safety Sense P on the 2018 Tundra uses a front-facing camera and radar sensor mounted behind the Toyota emblem, not the headlight bulbs. Swapping from halogen to LED headlights does not interfere with the pre-collision system, lane departure alert, or adaptive cruise control. The camera system operates independently of headlight type.
What fog light bulb does the 2018 Toyota Tundra use?
The 2018 Tundra uses an H16 bulb in the front fog lights. LED fog light replacements are available that produce a brighter, whiter beam than the factory halogen. Upgrading the fog lights at the same time as the headlights ensures a matched color temperature across the entire front lighting array, which looks cleaner and provides more uniform ground-level illumination.
How does the 2018 Tundra headlight compare to the 2017 Tundra?
The 2018 and 2017 Toyota Tundra use identical headlight bulb sizes: H11 low beam, 9005 high beam, and H16 fog light. The key difference is that the 2018 model made LED headlights standard on more trims and added Toyota Safety Sense P across the board. The same LED or HID conversion kit that fits the 2017 will fit the 2018 with no changes to the installation process.