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Forward Lighting
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Exterior Lighting
- Back Up Light Bulb » 921
- Brake Light Bulb » 7443
- Daytime Running Light Bulb » 5201
- License Plate Light Bulb » 168
- Parking Light Bulb » 7444NA
- Side Marker Light Bulb Front » 168
- Side Marker Light Bulb Rear » 168
- Stepwell Light Bulb » DE3175
- Tail Light Bulb » 7443
- Turn Signal Light Bulb Front » 7444NA
- Turn Signal Light Bulb Rear » 7440A
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Interior Lighting
2018 Nissan Altima Headlight Bulb Size
As the final year of the fifth-generation L33 platform, the 2018 Nissan Altima represents a well-proven sedan with years of real-world reliability behind it, and loyal Nissan owners are keeping these cars on the road for the long haul. The 2018 Nissan Altima headlight bulb size is H11 for the low beams, 9005 for the high beams, and H11 for the fog lights. Upgrading to 2018 Nissan Altima LED headlights breathes new life into a car that still has plenty of good miles ahead.
With used values settling as the redesigned 2019 arrived, many 2018 Altima owners are investing in targeted upgrades rather than trading in. LED headlights deliver one of the biggest visual and safety improvements per dollar spent.
LED and HID Headlight Kits for the 2018 Altima
The 2018 Altima accepts LED conversion bulbs in the factory H11 socket with zero modifications. Remove the stock halogen, click the LED into position, and route the compact driver behind the dust cap. The result is a clean 6000K white beam that turns on at full intensity with no warm-up delay. Most owners have both sides done in 20 minutes flat.
HID xenon kits remain an option for drivers who want the most raw lumens possible. The ballast adds one extra component per side, but the payoff is a deeply saturated beam that extends farther into the distance. Installation runs about 35 to 45 minutes total.
Every HID Nation kit is backed by a lifetime warranty and arrives with free shipping. No questions, no hassle if you ever need a replacement.
Frequently Asked Questions
What are the headlight bulb sizes for the 2018 Nissan Altima?
The 2018 Nissan Altima uses H11 for the low beams, 9005 for the high beams, and H11 for the fog lights. These sizes apply across all 2018 trims. The 2018 model is the final year of the L33 generation, sharing bulb fitment with every fifth-gen Altima from 2013 onward.
Is the 2018 Altima worth upgrading if the 2019 redesign is out?
The 2018 Altima remains a solid, well-proven car. LED headlights are one of the smartest upgrades because they improve both safety and appearance for a fraction of what a new car costs. With HID Nation's lifetime warranty, the headlights will last as long as you keep driving the car.
Does the 2018 Altima's CVT transmission affect LED headlight installation?
Not at all. The CVT and the headlight circuit are completely separate systems. LED bulbs actually draw less wattage than halogen, so the electrical load decreases slightly. There is no interaction between the headlight upgrade and the transmission electronics on the 2018 Altima.
Will LED bulbs work with the 2018 Altima's automatic headlight sensor?
Yes. The automatic headlight sensor on the 2018 Altima controls when the headlights turn on and off based on ambient light levels. It does not monitor bulb type or wattage. LED conversion bulbs function normally with the auto-on feature without any reprogramming.
Can I upgrade the fog lights to LED on my 2018 Nissan Altima?
Yes. The 2018 Altima fog lights take H11 bulbs, identical to the low beam size. You can swap them out in the same session as the headlights. Running LED in both positions creates a matching white tone across the front of the car, eliminating the color mismatch between aftermarket headlights and stock fog lights.