2002 GMC Sierra Headlight Bulb Size
Low beam
9006
High beam
9005
Order
2 × 9006 + 2 × 9005
Low beam takes a 9006 and high beam takes a 9005 — different bulbs, two of each. They are not interchangeable.
The 2000–2006 Sierra uses these same bulbs — your 2002 sits in the middle of that run. See all Sierra years.
2002 GMC Sierra bulb chart
| Position | Bulb | Notes |
|---|---|---|
| Low beam | 9006 |
Two bulbs, one per side. |
| High beam | 9005 |
Different bulb from low beam — not interchangeable. |
Verified against factory service data and OEM bulb references.
Parts that fit the 2002 GMC Sierra
Other vehicles that use the 9006
These take the same low beam bulb, so the same bulb fits — only the housing differs.