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Fitment Guaranteed for 2018 Infiniti QX30

What Size Bulbs Does a 2018 Infiniti QX30 Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Moderate (Dust covers often present)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2018 Infiniti QX30 Have?

The 2018 Infiniti QX30 features an extensive lighting system with 11 bulb positions. It uses halogen technology with a single H9 LED dual-filament bulb handling both low and high beams. The QX30 has been available from 2017 to 2019, and the 2018 model falls in the mid-generation years.

Can You Put LED Bulbs in a 2018 Infiniti QX30?

Upgrading the 2018 Infiniti QX30 to LED headlights is straightforward since it uses a single H9 LED dual-filament bulb for both low and high beams. You only need one pair of LED bulbs to upgrade both functions. Look for a H9 LED LED kit that specifically supports dual-filament operation to ensure both beams work correctly. For the fog lights, a LED Fog Light LED bulb provides a clean white output that pairs well with LED headlights.

How to Replace Bulbs on a 2018 Infiniti QX30

The H9 bulb uses a quarter-turn bayonet mount similar to H11. To remove the old bulb, disconnect the wiring harness first, then twist the bulb counter-clockwise and pull it out. On the 2018 QX30, you will likely encounter rubber dust covers behind the headlight housing. These pull off by hand or unscrew depending on the design. Allow about 15 to 20 minutes per side. When installing the new bulb, avoid touching the glass with bare fingers. Skin oils create hot spots that shorten bulb life. Wear clean gloves or handle the bulb by its plastic base only. The fog lights are accessed from underneath the front bumper. You may need to remove a few plastic clips or screws from the fender liner to reach the LED Fog Light fog light socket.

Full Upgrade Bundle

Upgrade All 11 Positions at Once

Low Beam: H9 LEDHigh Beam: H9 LEDFog Light: LED Fog LightBrake Light: LED BulbSide Marker: LED BulbTurn Signal Front: 12181NA LEDTurn Signal Rear: LED BulbLicense Plate: LED BulbParking Light: LED BulbReverse Light: LED BulbTrunk Light: LED Light
Shop Complete LED Kit

2018 Infiniti QX30 Complete Bulb Size Chart

PositionBulb SizeShop
Low Beam
H9 LEDBuy H9 LED
High Beam
H9 LEDBuy H9 LED
Fog Light
LED Fog LightBuy LED Fog Light
Brake Light
LED BulbBuy LED Bulb
Side Marker
LED BulbBuy LED Bulb
Turn Signal Front
12181NA LEDBuy 12181NA LED
Turn Signal Rear
LED BulbBuy LED Bulb
License Plate
LED BulbBuy LED Bulb
Parking Light
LED BulbBuy LED Bulb
Reverse Light
LED BulbBuy LED Bulb
Trunk Light
LED LightBuy LED Light

Want to upgrade everything at once?

Shop Complete LED Kit for 2018 Infiniti QX30
Installation Guide
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How Long Do 2018 Infiniti QX30 Headlight Bulbs Last?

Standard halogen headlights on the 2018 Infiniti QX30 have an expected lifespan of 500 to 1,000 hours, which works out to roughly 2 to 3 years of normal use. Signs of a failing halogen bulb include noticeably dimmer output, a yellowish tint compared to the other headlight, or intermittent flickering. At 8 years old, the original bulbs on your QX30 are likely overdue for replacement. Even if they still illuminate, reduced brightness significantly impacts nighttime safety. When one headlight burns out, replace both sides at the same time. Bulbs from the same batch age at similar rates, and mismatched brightness is distracting to oncoming drivers.

What Bulbs Are Compatible with the 2018 Infiniti QX30?

The H9 low beam bulb on the 2018 Infiniti QX30 is cross-compatible with H11, H8 bulbs. These share the same physical base and electrical connection, so they will fit the socket. However, H9 is the recommended size because it is optimized for the wattage and beam pattern designed into your headlight housing. Using the wrong bulb size can cause improper beam patterns that reduce your visibility and blind other drivers. It can also cause overheating inside the headlight housing, potentially warping the plastic lens or reflector. Always verify the bulb number before purchasing.

2018 Infiniti QX30 Headlight FAQ

The 2018 Infiniti QX30 uses a H9 LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

The high beam bulb size for the 2018 Infiniti QX30 is H9 LED.

The 2018 Infiniti QX30 uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

Yes, the 2018 Infiniti QX30 comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a H9 LED LED conversion kit for the low beams.

Yes, the 2018 Infiniti QX30 takes a LED Fog Light bulb for the fog light position.

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old H9 LED bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved H9 LED LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

A pair of halogen H9 LED bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the H9 LED position are available as direct plug-and-play replacements.

Did Infiniti QX30 Bulb Sizes Change Over the Years?

The Infiniti QX30 has maintained consistent bulb sizes across all model years from 2017 to 2019. The low beam has used a H9 LED bulb throughout, which means replacement parts and LED upgrade kits are widely available and well-tested for this model. If you find a deal on bulbs for any QX30 year in this range, they will fit your 2018 model.

Other QX30 Years

20192017
EX35EX37FX35FX37FX45FX50G20G25

Other Vehicles That Use H9 LED Bulbs

These vehicles from other makes also use a H9 LED low beam bulb:

2019 Nissan Armada