Bulb size & fitment reference

2014–2020 Acura RLX
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.

Interior Door Light

T10 / 194 / 168

Shop this position →

Stepwell Light

T10 / 194 / 168

Shop this position →

Trunk 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 RLX (2020) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Acura RLX (2019) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
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 RLX (2018) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Front Turn Signal1157Shop position →
Parking Light1157Shop position →
Rear Turn Signal7443Shop position →
Reverse Light912 / 921 / T15Shop position →
Front Side Marker LightT10 / 194 / 168Shop 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 RLX (2017) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Front Turn Signal1157Shop position →
Parking Light1157Shop position →
Rear Turn Signal7443Shop position →
Reverse Light912 / 921 / T15Shop position →
Outer Reverse Light912 / 921 / T15Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Dome LightT10 / 194 / 168Shop position →
Interior Door LightT10 / 194 / 168Shop position →
Stepwell LightT10 / 194 / 168Shop position →
Trunk LightT10 / 194 / 168Shop position →
View Fitment Options →

Acura RLX (2014–2016) Bulb Size Chart

Lighting PositionBulb SizeNoteNext Step
Front Turn Signal1157Shop position →
Parking Light1157Shop position →
Rear Turn Signal7443Shop position →
Reverse Light912 / 921 / T15Shop position →
Front Side Marker LightT10 / 194 / 168Shop position →
Dome LightT10 / 194 / 168Shop 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.