
PIAA 19615 9005 (HB3) Xtreme White Plus
$64.57
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Used for: Headlight Bulb High Beam, Daytime Running Light Bulb
Used for: Headlight Bulb Low Beam
Used for: Back Up Reverse Light Bulb
Used for: License Plate Light Bulb, Interior Door Light Bulb, Map Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front
Used for: Turn Signal Light Bulb Rear
Used for: Dome Light Bulb, Trunk or Cargo Area Light
Used for: Interior Door Light Bulb, Map Light Bulb
Used for: Vanity Mirror Light Bulb
Used for: Vanity Mirror Light Bulb
Looking for the right bulbs for your 2021 Toyota 4Runner? This page helps you verify bulb sizes by lighting position so you can match the correct replacement for headlights, tail lights, interior lamps, and other exterior lights without guessing.
The 2021 Toyota 4Runner uses a mix of LED and replaceable bulb types depending on the lamp location. Use this guide to confirm the bulb size for each spot on the vehicle, whether you are replacing a burned-out bulb or planning a lighting upgrade.
Fitment can vary by trim, lighting package, market, and body style, so it is smart to confirm the bulb in your specific 2021 Toyota 4Runner before ordering. Some positions use LED assemblies, while others use standard replaceable bulbs such as 9005 for the high beam and daytime running light, H11 for the low beam, and 921 for the reverse light. If you are converting halogen lighting to LED aftermarket bulbs, make sure the new bulb matches the socket, beam pattern, and space available inside the housing. For the best results, check the installed bulb or the owner’s manual before purchase, especially for interior lights and signal bulbs where multiple sizes may appear in the same model year.
The low beam headlight bulb listed for the 2021 Toyota 4Runner is H11.
The high beam headlight bulb listed for this model year is 9005.
Yes, the daytime running light bulb is listed as 9005 on this page.
The back up reverse light bulb is listed as 921.
On this page, the center high mount stop light, brake light, tail light, and rear side marker light are listed as LED, so they are not shown here as standard replaceable bulb sizes.
The front turn signal light bulb is listed as 7444NA.
The rear turn signal light bulb is listed as 7440A.
The front parking light bulb is listed as 7444NA.
The front side marker light bulb is listed as 168NA.
The license plate light bulb is listed as 168.
The map light bulb is listed as 168, 917, and the interior door light bulb is also listed as 168, 917.
The vanity mirror light bulb is listed as 194, 7441.
Both the dome light bulb and the trunk or cargo area light are listed as DE3175.
Yes. Trim and lighting package can change bulb fitment, so it is best to verify the exact bulb in your specific vehicle before buying replacements.