Acura RDX Bulb Sizes
2021 Acura RDX stores 3 bulb-chart rows across 3 lighting positions.
Match the designation printed on the bulb or housing. Stored rows are chart records, not a count of lamps on one vehicle.
Lighting positions
Choose a lighting position to see the stored designation.
Complete bulb chart
| Position | Configuration | Designation | Technology |
|---|---|---|---|
| Back Up Reverse Light Bulb | Stored position | 7507 | Halogen designation |
| Turn Signal Light Bulb Rear | Stored position | 7507 | Halogen designation |
| Interior Door Light Bulb | Stored position | 194 | Halogen designation |
Replacement check
Read the number on the installed bulb or the housing. Confirm whether the headlights are halogen, HID, or an LED assembly. H11 and H11B are different. 9005 and 9006 are different. This page does not substitute a nearby designation to fill the product list.
Year variations
- 2007–2012 halogen low beam: D2S. 2013: D2S / H11.
Questions
Does the 2021 Acura RDX chart include fog lights?
No fog-light bulb is stored for this year. This page does not add one.
What turn-signal bulb does the Acura RDX use?
Halogen-configuration turn signals in 2021 store 7507. An LED-headlight configuration can list LED instead of these bulbs.
Can I substitute a nearby bulb number?
No. H11 and H11B stay different. 9005 and 9006 stay different. This page matches the stored designation and does not swap in another bulb to fill the product list.
Does a catalog match guarantee the bulb fits?
A designation match means the product is filed under that bulb number and technology. It does not prove the lamp, socket, or vehicle configuration. Check the bulb in the housing before ordering.
How do I verify the replacement?
Read the number on the bulb or the housing, confirm whether the headlights are halogen, HID, or LED, and match that designation. Position names that say “with halogen headlights” or “with LED headlights” are separate configurations.
Does the Acura RDX bulb chart change by year?
Bulb rows are stored for 15 years, 2007–2021. This page shows 2021. Choose another year to see that chart. Years are not collapsed into one bulb list.
What does the chart store for back up reverse light bulb?
2021 stores 7507 for Back Up Reverse Light Bulb.
What does the chart store for interior door light bulb?
2021 stores 194 for Interior Door Light Bulb.