2025 Isuzu NPR Bulb Size Guide

Quick Reference Bulb Size Chart

Note: The 2025 Isuzu NPR primarily uses halogen bulbs for its factory lighting. Higher trim levels or optional packages may include LED lighting for some locations, so it is always best to double-check the bulbs in your specific vehicle before purchasing replacements.

LED vs. Halogen Upgrade Considerations

Upgrading your 2025 Isuzu NPR's halogen bulbs to LED can provide brighter, longer-lasting light. However, there are a few things to keep in mind before making the switch.

• CANBUS Errors: The NPR's computer system monitors the electrical current of the lighting system. Since LED bulbs draw less power than halogen bulbs, the computer may think a bulb is burnt out and display a "bulb out" warning on the dashboard. To prevent this, you will need to install a CANBUS-compatible LED bulb or an anti-flicker warning canceller.
• Adapters: Some LED bulbs may require an adapter to fit properly in the factory housing. Be sure to check if the LED bulb you are purchasing comes with the necessary adapters or if you will need to purchase them separately.
• Fitment: While most LED bulbs are designed to be a direct replacement for their halogen counterparts, it is always a good idea to double-check the dimensions of the bulb to ensure it will fit in the housing.

How to Replace Each Bulb

Headlights and Fog Lights:

The low beam, high beam, and fog light bulbs on the 2025 Isuzu NPR are all located in the main headlight housing. To access them, you will need to open the hood and remove the plastic cover behind the headlight assembly. Once the cover is removed, you can twist the bulb socket counter-clockwise to remove it, and then pull the old bulb out and insert the new one.

Turn Signals, Brake Lights, and Tail Lights:

The front and rear turn signal, brake, and tail light bulbs are all located in the tail light assembly. To access them, you will need to open the rear door and remove the two screws that hold the tail light assembly in place. Once the screws are removed, you can pull the assembly away from the body of the truck to access the bulbs.

Reverse Lights and License Plate Lights:

The reverse lights and license plate lights are both located in the rear bumper. To access the reverse lights, you will need to crawl under the truck and twist the bulb socket counter-clockwise to remove it. To access the license plate lights, you will need to remove the two screws that hold the license plate light assembly in place.

Side Marker, Dome, and Map Lights:

The front side marker lights are located in the headlight assembly, and the dome and map lights are located in the overhead console. To access the side marker lights, you will need to remove the headlight assembly. To access the dome and map lights, you will need to pry the lens cover off with a small flathead screwdriver.

Common Lighting Issues for This Generation

As the 2025 Isuzu NPR is a new model, there are no widespread, common lighting issues to report at this time. However, as with any vehicle, bulbs will eventually burn out and need to be replaced. It is a good practice to check your lights regularly to ensure they are all in working order.

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