2004 Toyota 4Runner Light Bulbs Types:
| Bulb | Type |
| Headlights (high beam) | 9005/HB3 |
| Headlights (high and low beams) | 9006/HB4 |
| Front fog lights | 9006/HB4 |
| Parking and front side marker lights | 168 |
| Front turn signal lights (without daytime running light system) | Wedge base bulbs (amber) |
| Front turn signal lights (with daytime running light system) | 4157NAK |
| Rear turn signal lights | Wedge base bulbs (amber) |
| Stop/tail and rear side marker lights | Wedge base bulbs (clear) |
| Back−up lights | 921 |
| License plate lights | 168 |
| High mounted stoplight | 921 |
| Interior light | Double end bulbs |
| Personal lights | Wedge base bulbs (clear) |
| Vanity lights | Double end bulbs |
| Door courtesy lights | Wedge base bulbs (clear) |
| Glove box light | Wedge base bulbs (clear) |
| Luggage compartment light | Double end bulbs |
| Running board lights | Wedge base bulbs (clear) |
