2024 Ford Explorer Bulb Sizes (Headlight, Tail, Fog)

Quick reference

The 2024 Ford Explorer offers a mix of lighting technologies across its various trim levels, from base model halogens to advanced LED systems. Understanding the specific bulb sizes and types is crucial whether you're replacing a faulty bulb or planning an upgrade. Generally, higher trim levels often feature more comprehensive LED lighting from the factory.

OEM Differences: Halogen vs. LED and Trim-Level Variations

Headlights

• Low Beam (H11): The base and XLT trims typically come equipped with halogen H11 low beam bulbs. Higher trims, such as the Limited, ST-Line, ST, King Ranch, and Platinum, generally feature full LED headlight assemblies, meaning the low beam LED is an integrated part of the assembly and not a replaceable bulb in the traditional sense.
• High Beam (9005): Similar to the low beams, standard trims usually utilize 9005 halogen high beam bulbs. The higher trim levels with LED headlights will have integrated LED high beams.
• Fog Lights (H11): Most 2024 Ford Explorer models that include fog lights will use H11 halogen bulbs. Some premium trims might have integrated LED fog lights.
• Daytime Running Lights (DRL): DRLs in the 2024 Explorer are typically LED and integrated into the main headlight assembly, especially on models with LED headlights. For models with halogen headlights, the DRL function might be handled by a specific bulb or integrated LED strip.

Turn Signals

• Front Turn Signals: On models with LED headlights, the front turn signals are integrated LEDs. For models with halogen headlights, a WY21W bulb might be used, though integrated LEDs are increasingly common across the board.
• Rear Turn Signals (7440): The rear turn signals are predominantly LED across all trim levels, utilizing a 7440 type LED bulb.

Brake Lights and Tail Lights

• Brake Lights (7443): The brake lights are almost universally LED, using a 7443 type bulb.
• Tail Lights (7443): Similar to the brake lights, the tail lights are LED, often utilizing the same 7443 bulb as the brake lights, but operating at a lower intensity for the tail light function.

Other Exterior Lighting

• Reverse Lights (921): The reverse lights are typically 921 LED bulbs.
• License Plate Lights (194): These are commonly 194 type LED bulbs.
• Side Markers: Both front and rear side markers are generally integrated LEDs within their respective headlight and tail light assemblies.

LED vs. Halogen Upgrade Considerations

Upgrading from halogen to LED bulbs can significantly improve brightness, longevity, and appearance. However, there are several factors to consider:

• CANBUS Errors: Modern vehicles like the 2024 Ford Explorer utilize a CANBUS (Controller Area Network Bus) system to monitor electrical components. LED bulbs draw less power than halogens, which can sometimes trigger "bulb out" warnings or flickering due to CANBUS detecting a perceived fault. To prevent this, "CANBUS-ready" or "error-free" LED bulbs with built-in resistors or external load resistors may be required.
• Adapters Needed: Some aftermarket LED bulbs may require specific adapters or retainers to fit securely into the housing, especially in projector-style headlights. Always check for compatibility before purchasing.
• Beam Pattern: Ensure that any aftermarket LED bulbs provide a proper beam pattern, especially for headlights. Poorly designed LEDs can scatter light, blinding oncoming drivers or reducing your own visibility.
• Heat Dissipation: LEDs generate heat, but unlike halogens, they are sensitive to high temperatures. Quality LED bulbs incorporate active or passive cooling systems (heatsinks, fans) to ensure longevity. Check for sufficient space around the bulb for proper heat dissipation.

How to Replace Each Bulb (Short Tips per Location)

• Headlights (Low/High Beam): Access is usually from behind the headlight assembly, often requiring removal of air intake components or fender liner for better access. Twist and pull to remove the bulb, then disconnect the electrical connector.
• Fog Lights: Typically accessed from underneath the front bumper or by removing the inner fender liner. Unclip the housing and twist out the bulb.
• DRL/Front Turn Signal (if replaceable): Access similar to headlights, may require specific tools or careful manipulation due to tight spaces.
• Rear Turn Signal/Brake/Tail Light/Reverse Light: Often accessed by removing interior trim panels in the trunk/hatch area to get to the back of the tail light assembly. Unbolt the assembly, or twist the bulb socket out from the back.
• License Plate Light: Usually removed by carefully prying out the clear lens cover with a plastic trim tool, then twisting out the bulb socket.
• Side Markers: Generally integrated LEDs, not designed for user replacement. If an issue occurs, the entire assembly may need replacement.
• Dome/Map Lights: Carefully pry off the lens cover with a plastic trim tool, then pull out the old bulb and push in the new one. Ensure proper polarity for LEDs.

Common Lighting Issues for This Generation

• Flickering LEDs (Aftermarket): As mentioned, this is often a CANBUS incompatibility issue. Installing load resistors or CANBUS-ready LEDs should resolve it.
• "Bulb Out" Warnings: Similar to flickering, if an aftermarket LED is installed without proper CANBUS decoders, the vehicle's system may report a non-existent fault.
• Moisture in Headlight/Tail Light Assemblies: Condensation or moisture build-up can occur, potentially leading to premature bulb failure or electrical issues. If persistent, the seal of the assembly may be compromised.
• DRL Malfunctions: Given the integration of DRLs into complex LED headlight assemblies, a malfunction may require replacement of the entire expensive assembly rather than just a bulb.

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