The bulb size depends on whether your 2005 G35 uses halogen or HID headlights. Halogen-equipped models typically use H11 for the low beam and 9005 for the high beam, while HID-equipped models use D2S bulbs for the low beam. Check your exact trim and option package to confirm.
In this article, we break down the two common configurations found on the 2005 G35, explain how to identify which one your car has, and provide guidance on verifying the exact bulb size to order. By understanding these differences, you can source the correct bulbs without confusion.
Halogen headlight configuration
If your G35 is equipped with standard halogen headlights, the following bulb sizes are typically used for the main headlights:
- Low beam: H11
- High beam: 9005 (HB3)
Halogen headlights are the simpler and more common setup for many base or earlier-trim G35 models. Always verify by checking the existing bulb or owner’s manual, as configurations can vary by market or specific option packages.
Xenon HID headlight configuration
If your G35 has HID (xenon) headlights, the low-beam bulbs are usually different from halogen models:
- Low beam (HID): D2S
Note that HID headlights require the appropriate ballast and housing. Some HID-equipped G35s may also use a separate halogen bulb for high beams or other functions depending on the exact factory setup. Always confirm the exact bulb type for your vehicle using the VIN, owner’s manual, or by inspecting the current bulb and ballast assembly.
How to verify your bulb size
To ensure you purchase the correct bulbs, verify the exact specification for your vehicle rather than relying on memory. Use these steps:
- Consult the owner’s manual or the dealership’s parts department with your VIN to confirm the exact bulb type for your trim and market.
- Inspect the back of the headlight housing or the bulb itself for the base type (e.g., H11, 9005, D2S).
- Look at the bulb currently installed and its packaging if available, noting the base type and any markings.
- If in doubt, have a qualified technician confirm the correct bulb size to avoid ordering errors.
Correct verification helps prevent ordering mistakes and ensures optimal performance of your G35’s lighting system.
Summary
For a 2005 INFINITI G35, the bulb size hinges on whether the car uses halogen or HID headlights. Halogen trims typically require H11 for low beams and 9005 for high beams, while HID trims use D2S for low beams (with variations possible for high beams depending on the exact setup). Always verify with the vehicle’s VIN or by inspecting the current bulb to ensure you purchase the right bulbs for your specific car.