2020 Ford Ranger Bulb Sizes (Headlight, Tail, Fog)

Quick reference

Location	Bulb Size	Type
Low Beam Headlight	H11	Halogen (some trims LED)
High Beam Headlight	9005	Halogen (some trims LED)
Fog Light	H11	Halogen (some trims LED)
Daytime Running Light	N/A	Integrated LED (some trims), 3157/7443 (halogen)
Front Turn Signal	3157	Halogen
Rear Turn Signal	3157	Halogen
Brake Light	3157	Halogen
Tail Light	3157	Halogen
Reverse Light	921	Halogen
License Plate Light	194	Halogen
Front Side Marker	194	Halogen
Dome Light	578	Halogen
Map Lights	168	Halogen

The 2020 Ford Ranger offers a mix of lighting technologies depending on the trim level. While many base and mid-range models still utilize traditional halogen bulbs, higher trims often feature integrated LED lighting for headlights, fog lights, and daytime running lights (DRLs), which are not owner-replaceable bulbs but rather entire assemblies. For models equipped with halogen bulbs, finding replacements or upgrades is straightforward, whereas LED-equipped models require replacing the entire housing if an LED fails.

Low Beam Headlight

Most 2020 Ford Rangers with halogen headlights use an H11 bulb for the low beams. However, premium trims like the Lariat often come with factory LED headlights. These LED headlights are a sealed unit, meaning individual bulbs cannot be replaced; the entire headlamp assembly must be swapped if the LEDs fail.

High Beam Headlight

For halogen-equipped Rangers, the high beam headlight typically uses a 9005 bulb. Similar to the low beams, upscale trims feature integrated LED high beams within the sealed LED headlight assembly.

Fog Light

Fog lights on halogen-equipped 2020 Rangers commonly use an H11 bulb, matching the low beam headlights. Again, higher trim levels may have integrated LED fog lights that are part of a sealed unit.

Daytime Running Light (DRL)

DRLs can vary significantly. Many base models may use the front turn signal bulb (3157 or 7443 depending on market/spec) at a reduced wattage as a DRL, or have a separate bulb for this function. More commonly, the 2020 Ranger, especially in XLT and Lariat trims, features dedicated integrated LED DRL strips that are not owner-serviceable. For halogen daytime running lights that are not integrated into the turn signal, a 3157 or 7443 dual-filament bulb might be used.

Front Turn Signal

The front turn signals on the 2020 Ford Ranger typically use a 3157 halogen bulb. This is a dual-filament bulb that often serves as both the turn signal and the parking light/DRL (if not equipped with dedicated LED DRLs).

Rear Turn Signal

For the rear turn signals, the 2020 Ranger generally utilizes a 3157 halogen bulb.

Brake Light

The brake lights on the 2020 Ford Ranger commonly share the same 3157 halogen bulb as the rear turn signals and tail lights.

Tail Light

Similar to the brake and rear turn signal lights, the tail lights also use a 3157 halogen bulb on most models.

Reverse Light

The reverse lights (backup lights) on the 2020 Ford Ranger typically use a 921 halogen bulb.

License Plate Light

For illuminating the license plate, the 2020 Ford Ranger commonly uses a 194 halogen bulb.

Front Side Marker

Integrated into the headlight assembly, the front side marker lights commonly use a 194 halogen bulb.

Dome Light

The interior dome light in the 2020 Ford Ranger usually takes a DE3175 or 578 festoon-style bulb. Always double-check your specific vehicle, as manufacturers can subtly change these on occasion.

Map Lights

For the front map lights, the 2020 Ford Ranger typically uses 168 or 194 wedge-style halogen bulbs.

LED vs Halogen Upgrade Considerations

Upgrading from halogen to LED bulbs in your 2020 Ford Ranger can significantly improve light output and modernize the vehicle's appearance. However, there are several factors to consider:

• CANBUS Errors: Modern vehicles, including the 2020 Ford Ranger, use a CANBUS system to monitor electrical circuits. LED bulbs draw significantly less power than halogens, which can trick the CANBUS system into thinking a bulb is out. This often triggers "bulb out" warning messages on the dash or can cause hyper-flashing for turn signals. To prevent this, you'll need LED bulbs with built-in CANBUS decoders or external load resistors wired into the circuit.
• Adapters Needed: While most LED replacement bulbs are designed to mimic the base of their halogen counterparts (e.g., H11 LED will fit an H11 housing), some may require specific adapters or mounting solutions, especially for headlights, to ensure proper fitment and beam pattern. Always check the product specifications for any required accessories.
• Beam Pattern (Headlights/Fog Lights): When upgrading headlights or fog lights to LED, ensure the LED bulb design properly emulates the filament location of the original halogen bulb. Poorly designed LED replacements can scatter light inefficiently, create glare for oncoming drivers, or even reduce your effective visibility despite being brighter. Projector-style housings generally handle LED upgrades better than reflector housings, but careful selection is still critical.
• Heat Dissipation: LEDs generate heat at their base. Quality LED bulbs come with heatsinks and often small fans to dissipate this heat. Ensure there's adequate space behind the headlight or fog light housing for these components.

How to Replace Each Bulb

Replacing bulbs on the 2020 Ford Ranger is generally straightforward, but some locations are trickier than others. Always ensure the vehicle is off and the lights are cool before attempting replacement.

• Headlights (Low/High Beam): Access is usually from behind the headlight assembly in the engine bay. Twist the bulb counter-clockwise to remove, unplug the connector, and reverse for installation. For some models, removing the airbox or battery may provide better access.
• Fog Lights: These are typically accessed from underneath the front bumper or by removing fender liner screws. Twist and pull to remove the old bulb, then disconnect the wiring harness.
• Front Turn Signals: Access is usually from behind the headlight assembly. Twist the bulb socket counter-clockwise to remove.
• Rear Turn Signal/Brake/Tail Lights: Access is typically by opening the tailgate and removing two screws or bolts holding the taillight assembly in place. Once unbolted, carefully pull the assembly straight back to release clips. You can then twist the bulb sockets to access the bulbs.
• Reverse Lights: Located within the taillight assembly, follow the same procedure as the rear turn signals.
• License Plate Lights: Usually accessed by carefully prying off the clear lens cover or by unscrewing small fasteners from the outside (often above the license plate).
• Front Side Marker: Typically part of the headlight assembly, accessed by twisting the socket from the rear.
• Dome Light: Carefully pry off the clear plastic lens cover using a plastic trim tool or small flathead screwdriver. The festoon bulb simply pulls out of its spring-loaded clips.
• Map Lights: Gently pry off the clear plastic lens cover. Wedge bulbs will pull straight out of their sockets.

Common Lighting Issues for this Generation

While the 2020 Ford Ranger is a relatively new vehicle, some common lighting-related observations or minor issues can arise:

• Condensation in Headlight/Taillight Assemblies: This is often a cosmetic issue rather than a functional one unless it's severe. Small amounts of moisture can evaporate, but persistent or heavy condensation might indicate a seal issue or crack in the housing.
• DRL Malfunctions: For models with integrated LED DRLs, a failure means replacing the entire expensive headlight assembly. For halogen DRLs (if separate from turn signal), the bulb may simply burnout.
• Trailer Wiring Harassment Issues: If you tow, ensure your trailer wiring harness is correctly installed and functioning. Faulty trailer wiring can sometimes cause electrical gremlins that affect vehicle lighting, triggering dashboard warnings.
• Aftermarket LED Flickering/Errors: As noted above, installing aftermarket LEDs without proper CANBUS compensation (load resistors or decoders) can lead to rapid flashing (hyper-flashing) for turn signals or "bulb out" warnings on the dash.

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