4 Years Available
Infiniti Q45 Light Bulb Sizes
Complete bulb size reference for the Infiniti Q45 from 1998 to 2001. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Infiniti q45 changed low beam specifications across model years — 1999–2001: HID-D2R LED; 1998: 9003 LED. Make sure to select your exact year below to get the right bulb size.
Year Range
1998 – 2001
4 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| Low Beam | HID-D2R LED(1999–2001) 9003 LED(1998–1998) | 4 years | Changed |
| High Beam | HID-D2R LED(1999–2001) 9003 LED(1998–1998) | 4 years | Changed |
| Fog Light | H3 LED(1998–2001) | 4 years | Consistent |
| Brake Light | 921 LED(1998–2001) | 4 years | Consistent |
| Side Marker | 1157NA LED(1998–2001) | 4 years | Consistent |
| Turn Signal Front | 1157NA LED(1998–2001) | 4 years | Consistent |
| Turn Signal Rear | 7440 LED(1998–2001) | 4 years | Consistent |
| License Plate | 168(1998–2001) | 4 years | Consistent |
| Parking Light | 1157NA(1998–2001) | 4 years | Consistent |
| Reverse Light | 921(1999–2001) 7440(1998–1998) | 4 years | Changed |
| Trunk Light | 158(1998–2001) | 4 years | Consistent |
Common Q45 Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Infiniti Q45 from 1998 to 2001, covering 4 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Infiniti Q45 changed low beam bulb specifications across generations: 1999–2001: HID-D2R LED; 1998–1998: 9003 LED. Make sure to check your exact year using the list below.
The Infiniti Q45 uses a HID-D2R LED bulb for the low beam (same bulb serves both high and low beam via dual filament), and a H3 LED for the fog lights. Select your year below for the exact fitment chart.
Yes. The Infiniti Q45 uses a HID-D2R LED low beam, and direct-fit LED conversion kits for that size are widely available. LED upgrades typically produce 2–3× more light output than stock halogen and last 25,000+ hours. Look for a DOT-compliant kit with a proper beam cutoff pattern.
Select your model year from the list below. Each year page shows every bulb position — low beam, high beam, fog light, turn signal, and brake light — with the correct size and a link to buy it on Amazon.