19 Years Available
GMC C1500 Light Bulb Sizes
Complete bulb size reference for the GMC C1500 from 1979 to 1999. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The GMC c1500 changed low beam specifications across model years — 1980–1990: H6054; 1993–1997: H6054 LED; 1998–1999: 9006 LED; 1988–1989: 9006; 1982–1985: H4656; 1991: H4703; 1979: H6024. Make sure to select your exact year below to get the right bulb size.
Year Range
1979 – 1999
19 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| Low Beam | H6054(1980–1990) H6054 LED(1993–1997) 9006 LED(1998–1999) 9006(1988–1989) H4656(1982–1985) H4703(1991–1991) H6024(1979–1979) | 19 years | Changed |
| High Beam | 74(1993–1999) H4651(1982–1986) 9005(1989–1991) 168(1980–1981) 9005 LED(1998–1998) H4701(1988–1988) | 18 years | Changed |
| Fog Light | H3 LED(1993–1997) 880 LED(1998–1999) | 7 years | Changed |
| Brake Light | 74(1993–1999) 1157(1979–1982) 3157CK(1990–1991) 921 LED(1998–1998) | 13 years | Changed |
| Side Marker | 168(1979–1986) 194 LED(1993–1999) 194(1988–1991) | 19 years | Changed |
| Turn Signal Front | 2357NA LED(1993–1997) 1157A(1979–1982) 3157NA LED(1998–1999) 1157(1981–1981) | 11 years | Changed |
| Turn Signal Rear | 3057 LED or 1157 LED(1993–1997) 1157(1979–1982) 3157 LED(1998–1999) 3157CK(1990–1991) | 13 years | Changed |
| Reverse Light | 1156(1979–1997) 3156(1990–1999) | 19 years | Changed |
| Dome Light | 211-2(1993–1999) | 7 years | Consistent |
| License Plate | 194(1988–1999) | 11 years | Consistent |
| Map Light | 168 or 211-2(1993–1997) 168 or 578(1999–1999) 168 or 561(1998–1998) | 7 years | Changed |
| Parking Light | 2357NA(1993–1998) 1157A(1979–1982) 3157NA(1999–1999) 1157(1981–1981) | 11 years | Changed |
| Trunk Light | 921 or 570(1993–1997) 912(1999–1999) 921(1998–1998) | 7 years | Changed |
| Daytime Running | 3157CK(1999–1999) | 1 years | Consistent |
| Tail Light | 1157(1979–1997) 3157CK(1990–1995) 3157(1999–1999) 3057(1998–1998) | 13 years | Changed |
Common C1500 Replacement Parts
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Frequently Asked Questions
We have bulb size data for the GMC C1500 from 1979 to 1999, covering 19 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the GMC C1500 changed low beam bulb specifications across generations: 1980–1990: H6054; 1993–1997: H6054 LED; 1998–1999: 9006 LED; 1988–1989: 9006; 1982–1985: H4656; 1991–1991: H4703; 1979–1979: H6024. Make sure to check your exact year using the list below.
The GMC C1500 uses a H6054 bulb for the low beam and a 74 for the high beam, and a H3 LED for the fog lights. Select your year below for the exact fitment chart.
Yes. The GMC C1500 uses a H6054 low beam, and direct-fit LED conversion kits for that size are widely available. LED upgrades typically produce 2–3× more light output than stock halogen and last 25,000+ hours. Look for a DOT-compliant kit with a proper beam cutoff pattern.
Select your model year from the list below. Each year page shows every bulb position — low beam, high beam, fog light, turn signal, and brake light — with the correct size and a link to buy it on Amazon.