2004 Honda Accord Headlight Bulb Size: The Essentials

The 2004 Honda Accord uses 9006 (HB4) bulbs for the low beams and 9005 (HB3) bulbs for the high beams on North American sedan and coupe models with factory halogen headlights. This applies to the vast majority of stock vehicles from that model year; if your car has aftermarket headlamp housings or a non-U.S./Canada specification, verify before purchasing.

Bulb Types by Headlight Function

Here are the standard, factory-spec headlight bulb sizes for a 2004 Honda Accord sold in the U.S. and Canada. This covers both sedan and coupe variants equipped with the original halogen reflector headlamps.

• Low beam: 9006 (HB4), typically 12V 55W
• High beam: 9005 (HB3), typically 12V 65W

These sizes are widely available in standard halogen, long-life, and higher-brightness halogen options. LED and HID retrofit kits exist but may require additional components and can affect beam pattern or legality.

Variations and Exceptions

While the above sizes fit most 2004 Accords in North America, there are scenarios where the bulb type can differ, and it’s smart to double-check before buying replacements.

• Aftermarket headlights: Some replacement housings use H1, H7, or proprietary LED modules instead of 9005/9006.
• Non–North American models: Overseas Accords (and the related European/Japanese variants) can use different bulb types or factory HID systems.
• Canadian DRL setups: Daytime running lights typically use the high-beam circuit (9005) at reduced power; the bulb size remains 9005.

If your car’s lights don’t match the factory style or you’re outside the U.S./Canada market, consult the specific parts guide for your VIN or the labeling on the headlamp housing.

How to Confirm Your Bulb Size

To ensure you’re ordering the correct bulbs, use one or more of the following quick checks.

• Owner’s manual: Look under the “Maintenance” or “Specifications” section for bulb types.
• On-lamp markings: Many housings list bulb types (e.g., “HB4/9006”) molded into the plastic near the socket.
• Parts lookup by VIN: Dealer parts departments or reputable online catalogs can confirm fitment for your exact vehicle.

Verifying before purchase helps avoid returns and ensures proper fit and beam performance.

Replacement Tips

Swapping the headlight bulbs on a 2004 Accord is straightforward with basic tools. These best practices can improve the result and longevity of the new bulbs.

• Safety first: Turn off the car and lights, let components cool, and disconnect the battery if desired.
• Avoid touching glass: Oils from skin can shorten halogen bulb life; handle bulbs by the base or use gloves.
• Inspect connectors: Look for heat damage or corrosion on the 9005/9006 sockets; replace pigtails if brittle or burnt.
• Match pairs: Replace bulbs in pairs to maintain even brightness and color temperature.
• Aim the beams: After installation, check headlight aim against a wall and adjust if necessary for safe visibility.

Following these steps helps ensure bright, properly aimed headlights and longer bulb life.

Summary

For a 2004 Honda Accord (sedan or coupe) with factory halogen headlights in North America, use 9006 (HB4) for low beams and 9005 (HB3) for high beams. Confirm via the owner’s manual, headlamp markings, or a VIN-based parts lookup if your car has aftermarket lights or is a non–U.S./Canada model.

Are 9006 and 9005 bulbs the same?

No, 9005 and 9006 bulbs are not the same. While they may look similar, they have different applications and some key differences in their design. 9005 bulbs are typically used for high beams, while 9006 bulbs are commonly used for low beams. 
Here’s a breakdown of the differences:

• Application: 9005 bulbs are designed for high beams, providing a brighter, longer-range light for increased visibility at a distance. 9006 bulbs are designed for low beams, offering a wider, softer light pattern for general driving visibility. 
• Wattage: 9005 bulbs are typically 65 watts, while 9006 bulbs are usually 55 watts. 
• Base Design: The bases of the bulbs are slightly different, with reversed locking tabs that prevent them from being interchanged without modification. 
• Lumens: 9005 bulbs generally produce around 1700 lumens, while 9006 bulbs typically produce around 1000 lumens. 

While some vehicles may be designed to use both types, one for high beam and one for low beam, it’s important to use the correct bulb for the designated application.

How to replace headlight bulb on 2004 Honda Accord?

Press in on the tab at the back of the bulb you need to change. And slip the wiring harness off the bulb with the wiring harness detached.

What headlights does a Honda Accord take?

With Honda Accord headlight bulbs sizes including 9005, H11, and even classic H4656 to choose from, you’ll always get what you need right here.

Are H11 and 9006 headlight bulbs the same?

No, H11 and 9006 bulbs are not the same and are not interchangeable because they have different base designs and electrical connectors, with H11 bulbs featuring closer pins and a large ring on the base, while 9006 (HB4) bulbs have a wider pin separation and lack this ring. While both are L-shaped and commonly used as low beam or fog lights, their distinct physical and electrical configurations prevent direct substitution.
 
Key Differences

• Base and Connector: The most significant difference is the H11’s PGJ19-2 base, which has pins closer together and an integral ring, compared to the 9006’s P22d 90° base. 
• Physical Appearance: Although both can have an L-shape, the H11 bulb has lugs on its plug ends, while the 9006 does not. 
• Brightness: H11 bulbs are generally brighter, emitting about 1350 lumens, whereas 9006 bulbs produce around 1000 lumens. 
• Compatibility: You cannot directly plug an H11 bulb into a 9006 socket, or vice versa. 

Common Uses

• H11: Frequently used for low beam and fog lights. 
• 9006: Often found in fog lights and sometimes in low beams, with this bulb also known as HB4.