What headlight bulbs are in a 2011 Ram 1500?

The 2011 Ram 1500 typically uses H11 for the low-beam headlights and 9005 for the high-beam headlights in its halogen setups; if the vehicle is equipped with factory HID headlights, the bulbs are usually D1S or D2S depending on the ballast. Always verify the exact type by checking the owner’s manual or the bulb label inside the headlight housing.

Common bulb sizes for halogen headlights

Below is a concise guide to the most frequently observed bulb sizes on 2011 Ram 1500 models with conventional halogen headlights. Variations can occur by trim level, regional market, or dealer-installed options, so use this as a baseline and verify on your specific vehicle.

• Low beam: H11


• High beam: 9005 (HB5)


• Fog lights (if equipped): H11

In practice, many Ram 1500s built for North American markets use the above configuration, though some regional or optional-fitted models may differ for fogs or auxiliary lighting. Always confirm with the vehicle’s documentation or by inspecting the existing bulb.

When your Ram has HID headlights

Some 2011 Ram 1500s were equipped with factory HID headlamps instead of halogen units. In those cases, the bulbs are not H11/9005; they are HID bulbs, typically D1S or D2S, paired with an electronic ballast. Replacing HID bulbs requires handling the ballast system and is often best performed by a professional to avoid damage or improper aiming.

To determine if your truck uses HID headlights, look for a ballast housing near the headlamp assembly, check the owner’s manual, or consult the vehicle’s original window sticker or a dealer parts database. If there’s any doubt, remove the bulb and read the imprint on the base or consult the service manual for the exact bulb type.

How to verify the exact bulb in your vehicle

For the most reliable result, start with the simplest checks: examine the bulb currently installed, read any markings on its base (such as H11 or 9005), and match those markings to a reputable parts retailer. If the headlamp uses an HID system, you’ll see a ballast nearby and will need D1S/D2S bulbs rather than halogen ones.

If you’re unsure, refer to the owner’s manual, the service manual, or contact a Dodge/Ram parts specialist with your Vehicle Identification Number (VIN) to confirm the exact bulb type for your trim and production date.

Summary

For most 2011 Ram 1500 models with halogen headlights, expect H11 low beams and 9005 high beams, with H11 fog lights where equipped. If your model includes factory HID headlights, the bulbs are typically D1S or D2S. Always verify the exact specification via the owner’s manual, the bulb label, or a parts database before purchasing replacements.

Is H11 the same as 9140?

They are identified and referenced using a part number (bulb size or bulb number). You may have heard of popular bulb sizes like H11, 9005, or H13. For example, H11 is the same as H8 and H9. 9005 is equivalent to HB3, H10, 9040, 9055, 9140, 9145, 9150, and 9155.

Are H11 and 9005 the same bulb?

Difference between these bulbs will be the O-ring on the base. H11 on the left side will have a big pronounced O-ring on the base of the bulb versus the 9005.

What bulbs does a 2011 Ram 1500 use?

Dodge Ram 1500 (2010-2012) Bulb Size Chart

Do I need H11 or 9005?

H11 bulbs are designed for use as low beam headlights, while 9005 bulbs are typically used for high beams. This results in a higher brightness level for the 9005 bulbs compared to the H11 bulbs.