10 Years Available
GMC Caballero Light Bulb Sizes
Complete bulb size reference for the GMC Caballero from 1978 to 1987. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The GMC caballero changed low beam specifications across model years — 1982–1987: H4656; 1978–1981: H6054. Make sure to select your exact year below to get the right bulb size.
Year Range
1978 – 1987
10 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| High Beam | H4651(1982–1987) 194(1978–1979) | 8 years | Changed |
| Side Marker | 194(1978–1987) | 10 years | Consistent |
| Low Beam | H4656(1982–1987) H6054(1978–1981) | 10 years | Changed |
| Reverse Light | 1156(1978–1987) | 10 years | Consistent |
| Tail Light | 194(1983–1987) 1157(1978–1982) | 10 years | Changed |
| License Plate | 194(1978–1987) | 10 years | Consistent |
| Turn Signal Front | 1157A(1980–1982) 1157(1978–1979) | 5 years | Changed |
| Parking Light | 1157A(1980–1982) 1157(1978–1979) | 5 years | Changed |
| Turn Signal Rear | 1157(1978–1982) | 5 years | Consistent |
| Brake Light | 1157(1978–1982) | 5 years | Consistent |
Common Caballero Replacement Parts
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Frequently Asked Questions
We have bulb size data for the GMC Caballero from 1978 to 1987, covering 10 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the GMC Caballero changed low beam bulb specifications across generations: 1982–1987: H4656; 1978–1981: H6054. Make sure to check your exact year using the list below.
The GMC Caballero uses a H4656 bulb for the low beam and a H4651 for the high beam. Select your year below for the exact fitment chart.
Yes. The GMC Caballero uses a H4656 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.