Bulb size & fitment reference

2021 Toyota Tundra
Bulb Size Guide

Get the bulb-size answer first, then check factory-system differences and position-specific notes before buying.

Select Your Vehicle

Quick Answer

Start with the positions you’re most likely to replace. Full fitment details are below.

High & Low Beam

H4

Shop this position →

Reverse Light

7443

Shop this position →

Brake Light

3157 / 3156

Shop this position →

Center High Mount Stop Light

912 / 921 / T15

Shop this position →

Full Bulb Fitment by Lighting Position

Find the bulb size for each lighting position and check any fitment notes before ordering.
Lighting PositionBulb SizeNoteNext Step
High & Low BeamH4Shop position →
Fog LightH11Shop position →
Cornering Light7443Shop position →
Front Turn Signal7443Shop position →
Front Parking Light3157 / 3156Shop position →
Rear Turn Signal912 / 921 / T15Shop position →
Brake Light3157 / 3156Shop position →
Center High Mount Stop Light912 / 921 / T15Shop position →
Tail Light3157 / 3156Shop position →
Reverse Light7443Shop position →
License Plate LightT10 / 194 / 168Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Rear Side Marker Light3157 / 3156Shop position →
Side Marker LightT10 / 194 / 168Shop position →
Front Dome LightT10 / 194 / 168Shop position →
Rear Dome LightT10 / 194 / 168Shop position →
Map LightT10 / 194 / 168Shop position →
Fitment Reminder
Bulb size can vary by factory setup. If you're unsure which option applies to your vehicle, confirm your current bulb or select your configuration on the product page.View Fitment Options →