What Size Headlight Bulb for a Hyundai Elantra?

The correct headlight bulb size for a Hyundai Elantra depends on the model year, trim level, and whether the car uses halogen, HID, or LED units, but many recent U.S. Elantra models commonly use H7 bulbs for low beams and H1 or 9005 for high beams, while newer trims increasingly rely on non-serviceable LED assemblies. Drivers should always confirm fitment using the vehicle owner’s manual, an online parts catalog, or VIN-based lookup before buying replacements.

Why Headlight Bulb Size Varies on the Hyundai Elantra

The Hyundai Elantra has been in production for decades, across multiple generations and global markets. Over that time, Hyundai has changed headlight designs, bulb types, and even moved from replaceable bulbs to sealed LED units on some newer trims. As a result, there is no single “one size fits all” bulb for every Elantra, and owners must match the bulb to their car’s exact year and configuration.

Regulations, styling trends, and technology all play a role. Early models used straightforward halogen reflector housings with familiar H4 or 9003-type bulbs. Later models introduced projector housings, separate bulbs for low and high beams, and eventually factory LED and HID options. Trim levels—such as SE, Limited, N Line, and hybrid variants—may also change the headlight hardware and therefore the bulb size or whether a bulb is even replaceable.

Typical Bulb Sizes by Hyundai Elantra Generation

While individual markets can differ, most U.S. Hyundai Elantra models follow a pattern of halogen reflector/projector bulbs in older generations and a move toward LED assemblies in newer cars. The following breakdown summarizes typical fitments and what owners can expect by model range.

4th Generation (Approx. 2007–2010 in North America)

Fourth-generation Elantras were largely equipped with halogen headlamps using conventional, serviceable bulbs. These cars usually rely on a single bulb per side for both high and low in some markets, or separate bulbs in others.

The typical bulb setup often included the following sizes:

• Low beam / High beam (combined, many markets): H4 / 9003 halogen
• Low beam (separate configuration in some trims/regions): H7
• High beam (separate configuration): H1 or 9005, depending on market

Because there were regional differences, owners of this generation should double-check their specific vehicle using the owner’s manual or a parts catalog; however, H4, H7, and H1 are the most commonly encountered sizes.

5th Generation (Approx. 2011–2016)

The fifth-generation Elantra introduced more modern styling and projector-type headlamps on many trims. Most U.S. models of this era still used halogen bulbs, but with separate low and high beams and sometimes accent or “LED-look” running lights.

Common configurations for many U.S.-spec Elantras in this period include:

• Low beam (projector style on many trims): H11 or H7
• High beam: H1 or 9005 (HB3), depending on housing
• Fog lights (if equipped): H11 or 9145/9006 in many models

Hyundai also offered optional HID systems or market-specific designs during these years, especially in higher trims or outside North America. On those cars, the low beam may be a D1S/D3S HID capsule instead of a halogen bulb, and should be replaced with the correct HID specification to avoid damage or legal issues.

6th Generation (Approx. 2017–2020, including 2019 facelift)

By the sixth generation, the Elantra lineup diversified: base trims usually retained halogen projectors, while premium trims and special models offered HID or LED headlights. This created more variation in bulb size and serviceability.

Typical patterns for U.S.-market Elantra (non-LED halogen trims) in these years include:

• Low beam (projector, halogen trims): H7 or H11
• High beam: H1 or 9005 in many configurations
• Fog lights (if equipped): H8/H11/9006 depending on bumper design and trim
• HID/LED headlights (higher trims): Often use HID capsules (e.g., D3S) or integrated LED modules that are not conventional “bulbs.”

On HID and LED variants, owners will typically not find a standard halogen bulb to swap. Instead, any repair may require replacing an HID capsule or, in the case of integrated LED assemblies, the entire headlight housing.

7th Generation (2021–Present Elantra / Elantra Hybrid / Elantra N)

The current-generation Hyundai Elantra emphasizes aggressive styling and advanced lighting technology. Many trims now rely on LED headlight modules, particularly in higher equipment lines and on performance or hybrid models. In these cars, the “bulb size” is often not a user-serviceable part.

For many 2021–present Elantras in North America, typical headlight setups are:

• Base and mid trims with halogen headlights: Often use H7 or H11 type bulbs for low beam projectors and 9005/H1 for high beams, but this can vary by trim and market.
• Higher trims (Limited, N Line, Hybrid Limited, etc.): Frequently equipped with full LED headlights using integrated LED modules, where no conventional bulb size is specified.
• Elantra N (performance variant): Commonly uses LED headlamps with sealed modules; headlight “bulbs” are typically not replaceable as standard retail parts.

Owners of these newer cars should be prepared for the possibility that what used to be a simple bulb swap may now involve dealer service or replacement of a complete LED assembly, particularly if the car has matrix-style or adaptive LED headlights.

How to Confirm the Exact Bulb Size for Your Elantra

Because trims, options, and regional specifications vary, relying solely on generation-based guides can lead to mistakes. Hyundai’s own documentation and modern parts databases offer more accurate, vehicle-specific answers.

The most reliable ways to identify the correct bulb size for a given Hyundai Elantra include the following steps:

1. Check the owner’s manual: Most manuals include a “Specifications” or “Bulb Wattage” section listing low-beam, high-beam, and other exterior lamp types.
2. Use a VIN-based parts lookup: Hyundai dealer websites and many major auto parts retailers allow you to enter your Vehicle Identification Number (VIN) to see exact bulb types.
3. Consult the label on the headlamp housing: Many headlight housings have small text molded into the plastic indicating the bulb types, such as “H7” or “H11.”
4. Use a reputable online bulb finder: Major bulb brands (Philips, Sylvania, Osram) maintain online tools where you can enter year, make, and model to get recommended bulb sizes.
5. Inspect the existing bulb (if accessible): When removed, most halogen bulbs are clearly labeled with their type (e.g., H7, 9005, H11). Match exactly with an equivalent specification.

Using at least two of these methods together—such as the owner’s manual plus a VIN-based lookup—reduces the risk of buying a bulb that physically fits but is incorrect for the reflector or projector design.

Halogen, HID, and LED: What Your Bulb Type Means

Beyond just the size designation, the technology in your Elantra’s headlights—halogen, HID, or LED—affects how you replace them and what your upgrade options are. Misunderstanding the system can lead to poor performance, glare for other drivers, or even electrical issues.

Halogen Headlights

Halogen bulbs are still the most common type found in older and base-trim Elantras. They’re inexpensive, easy to replace, and widely available.

Typical characteristics and considerations for halogen-equipped Elantras include:

• Standard bulb types: Common sizes include H7, H11, H1, 9005, and H4/9003, depending on year and market.
• Ease of replacement: Usually a DIY-friendly job involving removal of a dust cover and retaining clips on the back of the headlamp.
• Upgrade options: Premium halogen bulbs can offer brighter or whiter light but typically have shorter lifespans than basic long-life bulbs.
• Legal considerations: Staying with halogen bulbs specifically designed for road use in that socket ensures you remain road-legal and avoid glare issues.

For many Elantra owners, a high-quality halogen bulb in the correct size offers the best balance of cost, performance, and simplicity.

HID (Xenon) Headlights

Some mid-to-upper trims and certain markets offered factory HID xenon headlights, usually with projector housings and self-leveling features. These systems use gas-discharge capsules instead of filament bulbs and require ballasts.

Key points about HID-equipped Elantras include:

• Bulb type: Often D1S or D3S capsules, depending on model year and region, not standard halogen sizes like H7 or H11.
• Higher cost: HID capsules are significantly more expensive than halogen bulbs and may be best sourced from reputable brands to ensure longevity.
• Special handling: HIDs operate at high voltage; care and, in some cases, professional service are recommended for diagnosis or replacement.
• Matching color temperature: When replacing one capsule, it’s often wise to replace both sides so color and brightness remain consistent.

Owners should avoid mixing aftermarket HID kits in halogen housings, as this can cause glare and may be illegal in some regions. Factory HID systems should be serviced with proper, OEM-style components.

LED Headlights

LED headlights, common in the latest Elantra generations and higher trims, use light-emitting diodes instead of filaments or gas-discharge arcs. They can deliver a precise beam pattern, long life, and a distinctive appearance, but often at the cost of DIY serviceability.

Important aspects of Elantra LED headlights include:

• Integrated modules: Many factory LED systems embed the LED chips within the headlight assembly, making them non-serviceable as separate “bulbs.”
• Longevity: Properly designed OEM LED systems generally last far longer than halogen bulbs, reducing the need for frequent replacement.
• Replacement procedure: If an LED fails, replacing the entire headlamp assembly is frequently required, which can be costly.
• Aftermarket LED bulbs: For halogen-equipped Elantras, plug-in LED “retrofit” bulbs exist, but they must be carefully chosen to avoid improper beam patterns and potential legality issues.

Owners of Elantras with factory LED systems should consult the dealer or a trusted specialist if they suspect a headlight issue, as diagnosing and repairing LEDs is more complex than simple bulb swapping.

Practical Tips for Replacing Hyundai Elantra Headlight Bulbs

Even after determining the correct bulb size, successful replacement depends on careful handling and attention to details such as sealing, aiming, and avoiding damage. A few practical habits can help Elantra owners keep their headlights working reliably.

To improve the outcome of a headlight bulb replacement on your Elantra, consider the following practices:

1. Avoid touching the glass: Skin oils can create hot spots on halogen bulbs, shortening their life; handle bulbs by the base.
2. Replace bulbs in pairs: Headlights dim over time; replacing both sides together ensures even brightness and color.
3. Confirm proper seating: Ensure the bulb is fully locked into the housing; misaligned bulbs cause poor light patterns and glare.
4. Reinstall dust caps correctly: Failing to seal the housing can allow moisture and dirt inside, fogging lenses and damaging components.
5. Check headlight aim: After replacement—or after front-end work—it’s wise to verify that beam height and direction haven’t shifted.
6. Use known brands: Quality bulbs from reputable manufacturers often perform better and last longer than unbranded, ultra-cheap options.

Taking a few extra minutes during installation reduces the chance of premature failure, water intrusion, or misaligned beams that reduce visibility and annoy oncoming drivers.

Why You Shouldn’t Guess the Bulb Size

Using the wrong bulb size or technology in a Hyundai Elantra can cause more than just inconvenience. Mismatch between bulb and housing can lead to poor illumination, safety risks, and even damage to the vehicle’s electrical system.

The main risks of guessing or improvising with headlight bulbs include:

• Poor beam pattern: Installing a bulb type not designed for the reflector/projector can scatter light, reducing your own visibility and creating glare for others.
• Overheating: Using a higher-wattage bulb than specified can overheat housings or wiring, potentially melting plastic or damaging connectors.
• Electrical issues: Incorrect or poorly wired aftermarket conversions (HID/LED kits) can stress the vehicle’s electrical system or trigger error messages.
• Legal implications: In many jurisdictions, non-compliant headlight modifications can fail inspection or violate road regulations.

Verifying the exact size and specification, rather than relying on assumptions or generic recommendations, ensures that your Elantra’s headlights remain safe, effective, and compliant with local regulations.

Summary

The correct headlight bulb size for a Hyundai Elantra is not universal: it varies by model year, trim level, market, and whether the car uses halogen, HID, or LED technology. Many older and mid-generation Elantras commonly use halogen bulbs like H7, H11, H1, 9005, or H4 for their headlights, while newer and higher-trim models are increasingly equipped with LED modules or HID capsules that may not be user-serviceable as traditional bulbs.

To determine the precise bulb size for a specific Elantra, owners should consult the vehicle’s owner’s manual, use a VIN-based or model-specific parts lookup, and, if needed, inspect the headlamp housing or existing bulb markings. Once the correct type is known, choosing a quality, specification-matched replacement and installing it carefully—while preserving the housing seal and beam alignment—will maintain safe, reliable nighttime visibility.