Most 2009 Nissan Altimas with standard halogen headlights use H11 for low beams, 9005 for high beams, and H11 for fog lights where equipped.
However, some cars built for certain markets or with optional equipment may use factory HID headlights, which changes the bulb type and installation. This article outlines the typical halogen setup and the HID option, and provides steps to verify the exact bulbs for your car.
Halogen headlight configuration (the most common)
Before listing the bulbs, note that the following applies to the common halogen headlight setup found in many 2009 Altimas.
- Low beam: H11
- High beam: 9005 (HB3)
- Fog lights (if equipped): H11
In summary, with the standard halogen headlights, these are the bulb types you’ll typically replace.
Factory HID headlights (optional on some trims)
Before listing the bulb types, keep in mind that HID-equipped Altimas use xenon bulbs and a ballast; bulb type can vary by year, market, and whether the high beam is also HID.
- Low beam: Xenon HID bulb (commonly labeled D2S or D2R, depending on the ballast and housing)
- High beam: May be HID or a separate halogen bulb (often 9005) depending on the specific headlight assembly
- Fog lights: Typically a halogen bulb (for example H11 or H3) depending on trim
These configurations require careful verification, since there is more variation across markets and production runs.
How to verify the correct bulb for your car
Before listing steps, here's how to check the exact bulb type for your Altima:
- Consult the owner's manual section on bulbs for your model year; it lists the exact bulb numbers for your trim and market.
- Inspect the bulb in the headlight housing and look for the bulb code on the base, or rely on the packaging of the replacement bulb you intend to buy.
- When purchasing replacements online or in-store, match the bulb type and wattage exactly; for HID, ensure you have the correct ballast compatibility.
Getting the exact bulb type right avoids fitment and performance issues, and helps ensure proper brightness and beam pattern.
Summary
For most 2009 Nissan Altimas, the standard halogen setup uses H11 low beams, 9005 high beams, and H11 fog lights where installed. Some vehicles built with factory HID headlights use xenon bulbs (commonly D2S or similar) with a ballast; high beams and fog lights may differ by trim. Always verify against your car’s documentation or by inspecting the current bulbs to ensure you buy the correct replacements.