Chevrolet Avalanche (2001 – 2006) bulb specification
Year of production: 2001, 2002, 2003, 2004, 2005, 2006
| Lights | Bulb number |
| Low-Beam Headlamps | 9006 |
| High-Beam Headlamps | 9011 |
| Daytime Running Lamps (DRL) | 4157K |
| Front Marker Lamp | 194 |
| Front Parking and Turn Lamp | 3157A or 3457NA |
| Rear Marker Lamp, Taillamp and Stop Lamp | 3157 |
| Rear Turn Lamp | 3157 |
| Back-up Lamp | 3157 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.