Bulb size & fitment reference

2015–2020 Acura TLX
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.

Reverse Light

7443

Shop this position →

Interior Door Light

T10 / 194 / 168

Shop this position →

Rear Turn Signal

7443

Shop this position →

Stepwell Light

T10 / 194 / 168

Shop this position →

Full Bulb Fitment by Lighting Position

Find the bulb size for each lighting position and check any fitment notes before ordering.

Acura TLX (2020) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Rear Turn Signal7443Shop position →
Reverse Light7443Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Acura TLX (2018–2019) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Rear Turn Signal7443Shop position →
Reverse Light7443Shop position →
Outer Reverse Light7443Shop position →
Courtesy LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
Luggage Compartment LightT10 / 194 / 168Shop position →
View Fitment Options →

Acura TLX (2017) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Rear Turn Signal7443Shop position →
Reverse Light7443Shop position →
Outer Reverse Light7443Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Acura TLX (2015–2016) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Rear Turn Signal7443Shop position →
Reverse Light7443Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →
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.