17 Years Available
Infiniti Q45 Light Bulb Sizes
Complete bulb size reference for the Infiniti Q45 from 1990 to 2006. 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 — 1994–1997: H4; 1990–1993: 9006; 1999–2001: HID-D2R LED; 1998: 9003 LED. Make sure to select your exact year below to get the right bulb size.
Year Range
1990 – 2006
17 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| Turn Signal Front | 1157A(1990–1997) 1157NA LED(1998–2001) 7440NA(2005–2006) 1156(2002–2003) 1156A(2004–2004) | 17 years | Changed |
| Fog Light | H3 LED(1998–2001) H8(2005–2006) | 6 years | Changed |
| High Beam | 9005(1990–2006) H1(2002–2004) HID-D2R LED(1999–2001) 9003 LED(1998–1998) | 16 years | Changed |
| Side Marker | 168(1990–2004) 1157NA LED(1998–2001) W5W(2005–2006) 1157A(1997–1997) | 17 years | Changed |
| Brake Light | 1157(1990–1996) 921(1993–2006) 921 LED(1998–2001) 7443(2004–2004) 7443CK(2002–2002) | 17 years | Changed |
| Turn Signal Rear | 1156(1990–1996) 7440NA(2002–2006) 7440 LED(1998–2001) 7440(1997–1997) | 17 years | Changed |
| License Plate | 168(1990–2006) | 17 years | Consistent |
| Reverse Light | 921(1999–2006) 1156(1990–1996) 7440(1997–1998) | 17 years | Changed |
| Parking Light | 1157A(1990–1997) 1157NA(1998–2001) 168(2002–2004) W5W(2005–2006) | 17 years | Changed |
| Tail Light | 1157(1990–1996) 7443(1998–2004) 7443CK(1997–2001) | 15 years | Changed |
| Dome Light | DE3175(1994–2004) 194(1990–1993) | 8 years | Changed |
| Low Beam | H4(1994–1997) 9006(1990–1993) HID-D2R LED(1999–2001) 9003 LED(1998–1998) | 12 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 1990 to 2006, covering 17 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: 1994–1997: H4; 1990–1993: 9006; 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 H4 bulb for the low beam and a 9005 for the high beam, and a H3 LED for the fog lights. Select your year below for the exact fitment chart.
Yes. The Infiniti Q45 uses a H4 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.