What Size Bulbs Does a 1991 Chevrolet S10 Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Easy (Plug and Play)
Est. Replacement Cost
$15 - $40 (Halogen) / $30+ (LED)
What Lighting System Does the 1991 Chevrolet S10 Have?
The 1991 Chevrolet S10 utilizes a refined lighting configuration featuring 13 distinct bulb positions. It features an extensive lighting system powered by a dual-bulb halogen configuration using separate H6054 LED low beam and PC74 or 194 high beam bulbs for precise light distribution. This model belongs to the mid years of the S10's 1982-2004 production span.
Can You Put LED Bulbs in a 1991 Chevrolet S10?
For a Chevrolet built for the road and trail, LED upgrades provide the high-contrast lighting needed for better obstacle detection. We recommend starting your upgrade with the H6054 LED low beams, as they see the most use. Adding a matching PC74 or 194 LED kit later will complete the look and ensure consistent lighting performance. Don't forget the H3 LED fog lights; switching these to LED can dramatically improve your visibility in adverse weather.
1991 Chevrolet S10 Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
| Low Beam | H6054 LED | Buy H6054 LED → |
| High Beam | PC74 or 194 | Buy PC74 or 194 → |
| Fog Light | H3 LED | Buy H3 LED → |
| Brake Light | PC74 or 194 | Buy PC74 or 194 → |
| Side Marker | 194 LED | Buy 194 LED → |
| Turn Signal Front | 2057 LED | Buy 2057 LED → |
| Turn Signal Rear | 2057 LED | Buy 2057 LED → |
| Reverse Light | 1156 | Buy 1156 → |
| Dome Light | 211-2 | Buy 211-2 → |
| License Plate | 194 | Buy 194 → |
| Map Light | 194 | Buy 194 → |
| Parking Light | 2057 | Buy 2057 → |
| Trunk Light | 570 | Buy 570 → |