INFINITI QX4 Tail Light Bulb Size
The INFINITI QX4 tail light utilizes 1157, 7440, and 7443 bulb sizes for various lighting functions. Data for the specified vehicle components covers the range from 1997 through 2003.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2002-2003 | 7443 | W21/5W | Check Price |
| 2001 | 7440 | W21W | Check Price |
| 2000 | 7443 (With HID Headlamps) | W21/5W | Check Price |
| 7440 (With Halogen Capsule Headlamps) | W21W | Check Price | |
| 1999 | 7443 (With HID Headlamps) | W21/5W | Check Price |
| 1157 (With Halogen Capsule Headlamps) | P21/5W | Check Price | |
| 1997-1998 | 1157 | P21/5W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20). 12V, 21W/5W. | 7443 | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W. | 7440 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W. | 1157 | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |