1999 Infiniti Q45 Bulb Sizes
Quick answer: the 1999 Infiniti Q45 uses D2R low beams, H1 high beams and H3 fog lights.
1999 Infiniti Q45 bulb size chart
| Position | Bulb size (tap to shop) |
|---|---|
| Fog Light Bulb Front | H3 |
| Headlight Bulb High Beam | H1 |
| Headlight Bulb Low Beam | D2R |
| Center High Mount Stop Light Bulb | 921 |
| License Plate Light Bulb | 168 |
| Back Up Reverse Light Bulb | 921 |
| Tail Light Bulb(Compare to original - Option 1) | 168 |
| Trunk or Cargo Area Light | 158 |
| Courtesy Light Bulb(Compare to original - Option 1) | 158 |
Tap any bulb size to see it on Amazon. Trims and mid-year changes can differ, so pull the old bulb and match the number on its base before you order.
Which bulb should I buy?
- Just need it working again? Buy the standard halogen in the same size. It's cheap, it's legal everywhere, and it takes five minutes.
- Want to see better at night without messing with anything? Step up to a brighter halogen. Same plug, more light, no wiring.
- Want the white, modern look? Go LED. Great for fog, reverse, plate and interior lights. For headlights, LED bulbs in a housing built for halogen can throw glare, so aim them after you install and check your state's rules before running them on the street.
- Got HID (D-series) headlights? Those don't come in halogen. Replace them with the same D-series HID size, and swap both sides at once so the color matches.
Our picks by bulb size
H3 (fog light front)
- Top pick: SEALIGHT H3 LED fog light bulbs
H1 (headlight high beam)
- Top pick: OSRAM Night Breaker Laser H1 halogen
D2R (headlight low beam)
- Top pick: DMEX D2R HID bulbs (2 pcs)
921 (center high mount stop light, back up reverse light)
- Halogen: Sylvania 921 Long Life (2 bulbs)
- LED: LASFIT 921 LED (pack of 2)
168 (license plate light, tail light)
- Halogen: Sylvania 194 SilverStar (2 bulbs)
- LED: LASFIT 194 LED (2 pcs)
158 (trunk or cargo area light, courtesy light)
- Top pick: Sylvania 158 Basic (10 bulbs)
For brake lights and turn signals, match the LED color to the lens: red behind a red lens, amber for turn signals.
While you're in there
- Cloudy headlights? New bulbs won't fix a yellowed lens. A replacement housing makes a bigger difference than any bulb: see Infiniti Q45 headlights at NTXGlow.
- Tail lights faded or cracked? Infiniti Q45 tail lights at NTXGlow.
Common questions
What size is the low beam headlight bulb on a 1999 Infiniti Q45?
D2R.
What size is the high beam headlight bulb on a 1999 Infiniti Q45?
H1.
What size is the fog light bulb on a 1999 Infiniti Q45?
H3.
Can I put LED bulbs in a 1999 Infiniti Q45?
Most sizes on this vehicle have a plug-in LED version. Fog, license plate and interior lights are the easy wins. For headlights, aim them after you install and check your local laws first. Some trims of this vehicle use HID (D-series) headlight bulbs. Replace those with the same HID size, not an LED.
How do I make sure I'm buying the right size?
Pull the old bulb and read the number stamped on its base, or check the bulb chart in your owner's manual. Trims and mid-year changes can differ from any chart, including this one.
Other Infiniti Q45 years
2000 Infiniti Q45 bulb sizes · 2001 Infiniti Q45 bulb sizes · 2002 Infiniti Q45 bulb sizes · 2003 Infiniti Q45 bulb sizes · 2004 Infiniti Q45 bulb sizes · 2005 Infiniti Q45 bulb sizes
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