Factory setup not specified in fitment source

2018 Toyota Tundra Headlight Bulbs & Lighting Guide

Factory headlight performance and available bulb guidance for the 2018 Toyota Tundra.

Low beam
9003 / H4
High beam
9003 / H4
Factory setup
Factory setup not specified in fitment source
6.0/10BulbFacts OE Visibility Score
Factory performanceNot a Lighting Pick
2018 Toyota Tundra factory headlights vehicle image

How the factory headlights perform

This vehicle has more than one documented factory system. Use the selector above to match the trim or package where available.

Not a Lighting Pick

Upgrade recommended if night driving is a priority.

Peak low-beam reach
238 ft
Compared with tested Trucks15th percentile
Compared with all tested vehicles9th percentile
Peak high-beam reach
481 ft
Compared with tested Trucks35th percentile
Compared with all tested vehicles32nd percentile
Curve visibility
7.6 / 15
Glare control
9 / 10Recorded low-beam glare exceedance up to 8.0%
High-beam assist
Yes
Curve-adaptive lighting
No

Best headlight upgrades

These products were physically tested by BulbFacts, but the tests were not performed in this exact vehicle unless a card explicitly says otherwise.

Factory setup not specified in fitment source

High/Low Beam Combined: 9003 / H4

Best direct replacement

OSRAM Night Breaker 200

High/Low Beam Combined 9003 / H4

BulbFacts testedCorrect bulb size
Best Standard Reflector Upgrade

The Night Breaker 200 is the top standard-wattage reflector recommendation at the time of review. Anything scoring higher in the reflector chart uses much higher wattage, while the NB200 keeps the simple drop-in halogen format.

General BulbFacts housing test
Read BulbFacts reviewCompare test resultsBuy at eBay

A matching bulb size identifies fitment; it does not by itself prove optical compatibility or make a conversion a vehicle-specific recommendation.

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Other bulbs

Available exterior and interior lighting data for this model year.

Brake Light
3157Possible fitment — verify installed bulb
Cargo / Trunk Light
T15Possible fitment — verify installed bulb
Center High Mount Stop Light
T15Possible fitment — verify installed bulb
Dome Light
T10Possible fitment — verify installed bulb
Door Mirror Illumination
T10Possible fitment — verify installed bulb
Daytime Running Light
3157Possible fitment — verify installed bulb
Fog Light
H11Possible fitment — verify installed bulb
Front Side Marker
T10Possible fitment — verify installed bulb
Front Turn Signal
3157Possible fitment — verify installed bulb
Glove Box Light
T5Possible fitment — verify installed bulb
License Plate Light
T10Possible fitment — verify installed bulb
Map Light
T10Possible fitment — verify installed bulb
Technical details and sources

Fitment, factory-system research, and BulbFacts product tests remain separate evidence. A matching bulb size does not by itself make a conversion a vehicle-specific recommendation.

PositionBulb or systemEvidence status
High/Low Beam CombinedFactory setup not specified in fitment source9003 / H4Possible fitment — verify installed bulb

Each model year opens its own BulbFacts record. Bulb sizes and factory systems are not carried over from adjacent years.

Fitment note: Verify the installed bulb, connector, housing, and factory system before ordering. A bulb-size match is not automatically a conversion recommendation or proof of vehicle-specific testing.