Light bulb size Pulling out the socket of the light bulb from the headlight assembly.

1997-2003 Infiniti QX4 Light Bulb Sizes

Front Lights

  • Front Fog Light Bulb: H3-55W
  • Front Sidemarker Light Bulb: 168
  • Front Turn Signal Light Bulb: 7440
  • High Beam Headlight Bulb: 9005
  • Low Beam Headlight Bulb: HID-D2R

Rear Lights

  • Back Up Light Bulb: 921
  • Brake Light Bulb:
    • 7443-SCK
    •  7443
  • Center High Mount Stop Light Bulb: 168
  • License Plate Light Bulb: 194
  • Parking Light Bulb: 168
  • Rear Turn Signal Light Bulb: 1156NA
  • Tail Light Bulb:
    • 7443-SCK
    • 7443

Interior Lights

  • Courtesy Light Bulb: DE3175
  • Luggage Compartment Light Bulb: DE3175

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