Headlight Size

Bulb types · Interior

DE3021 bulb

Catalog code DE3021 — appears in 369 model-year × position rows. Confirm against your owner’s manual before swapping.

CodeDE3021
FamilyInterior
Fitment rows369
Top positions12

Replacement options

Halogen, LED, and HID picks for DE3021. Prices and availability come from Amazon — confirm fitment for your vehicle before buying.

Marsauto DE3021 LED Interior Bulbs
LED

Marsauto DE3021 LED Interior Bulbs

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Combriller DE3021 LED Bulb (Ice Blue)
LED

Combriller DE3021 LED Bulb (Ice Blue)

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Serundo Auto DE3175 Led Car Bulb 31mm 1.22in Led Festoon Bulb, DE3021 DE3022 DE3023 6428 6430 7065, 6000k White Super Bright Interior light Used for Car Map Dome Light etc,Pack of 4pcs
LED

Serundo Auto DE3175 Led Car Bulb 31mm 1.22in Led Festoon ...

$5.99
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AUXLIGHT DE3175 DE3021 DE3022 3175 31MM 1.22”Festoon Canbus Error Free LED Interior Light Bulbs 6000K Xenon White, Super Bright 6SMD Chips for Dome Map Door Courtesy License Plate Lights (Pack of 6)
LED

AUXLIGHT DE3175 DE3021 DE3022 3175 31MM 1.22”Festoon Canb...

$7.49
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HEVLE 6PCS DE3175 LED Dome Light Bulbs, Extremely Bright 31mm DE3021 6428 6430 7065 1.22inch Led Interior Car Festoon Bulb, Upgraded 400LM 6500K Dome Map Door Lights LED Blub Universal for Most Car
LED

HEVLE 6PCS DE3175 LED Dome Light Bulbs, Extremely Bright ...

$4.68
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Antline DE3175 DE3021 DE3022 3175 31MM 1.22”LED Bulb White, Super Bright Canbus Error Free 12 Volt Replacements for Interior Dome Map Vanity Mirror Sun Visor Lights (Pack of 10)
LED

Antline DE3175 DE3021 DE3022 3175 31MM 1.22”LED Bulb Whit...

$9.99
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LUYED 2 X Super Bright 2835 6-EX Chipsets Error Free 1.25 inches DE3175 DE3021 DE3022 3175 LED Bulbs Used For Dome light,Xenon White
LED

LUYED 2 X Super Bright 2835 6-EX Chipsets Error Free 1.25...

$6.99
Details →
PHINLION Super Bright DE3175 LED White Bulb 500 Lumens 3030 6-SMD Festoon 1.25" 31mm DE3021 DE3022 Miniature LED Bulbs for Car Interior Map Dome Trunk Courtesy License Plate Light, Pack of 4
LED

PHINLION Super Bright DE3175 LED White Bulb 500 Lumens 30...

$11.99
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SYLVANIA - DE3021 Long Life Miniature - Bulb, Ideal for Interior Lighting - Map, Dome and License Plate (Contains 2 Bulbs)
Halogen

SYLVANIA - DE3021 Long Life Miniature - Bulb, Ideal for I...

$8.99
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SEALIGHT 31mm DE3175 LED Bulbs DE3021 DE3022 LED Bulbs CSP-2525 Ceramic Chipsets 6500K White Super Bright Error Free CANBUS Interior Car Light for Dome Map Door License Plate Lights Bulbs (Pack of 4)
LED

SEALIGHT 31mm DE3175 LED Bulbs DE3021 DE3022 LED Bulbs CS...

$21.99
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SYLVANIA - DE3021 31mm Festoon LED White Mini Bulb - Bright LED - Ideal for Interior Lighting - Map, Trunk, Cargo & License Plate (Contains 1 Bulb)
LED

SYLVANIA - DE3021 31mm Festoon LED White Mini Bulb - Brig...

$9.75
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Where DE3021 shows up

Ranked by how often this code is tied to a lighting position across model years — a practical clue for dual-beam vs single-beam and fog vs headlamp confusion.

PositionFitments
Trunk or Cargo Area Light89
Glove Box Light Bulb73
Courtesy Light Bulb51
Interior Door Light Bulb39
Dome Light Bulb31
Courtesy Light Bulb(Compare to original - Option 2)26
Stepwell Light Bulb14
Courtesy Light Bulb(Compare to original - Option 1)12
Map Light Bulb12
Trunk or Cargo Area Light(Hatchback)6
Fog Light Bulb Front4
Vanity Mirror Light Bulb3

Makes that use DE3021 most

Based on catalog fitment density — not a claim that every trim uses this bulb.

  • Acura102
  • Honda92
  • Lexus81
  • Toyota35
  • Subaru27
  • Cadillac7
  • Nissan5
  • Suzuki3
  • Volvo2

Cross-reference notes

Related codes from the Autotk cross-reference table. Direction matters — some bulbs can replace others one-way only.

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