13 Years Available
Buick Skyhawk Light Bulb Sizes
Complete bulb size reference for the Buick Skyhawk from 1975 to 1989. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Buick skyhawk changed low beam specifications across model years — 1975–1988: H4656; 1979–1980: H6054. Make sure to select your exact year below to get the right bulb size.
Year Range
1975 – 1989
13 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| Side Marker | 194(1975–1989) | 13 years | Consistent |
| Brake Light | 1157(1975–1983) 1156(1988–1989) 906(1986–1987) | 12 years | Changed |
| Parking Light | 1157A(1975–1984) 1157(1977–1978) 194(1989–1989) | 10 years | Changed |
| Tail Light | 1157(1975–1983) 194(1989–1989) | 9 years | Changed |
| License Plate | 194(1975–1989) | 13 years | Consistent |
| Reverse Light | 1156(1975–1989) | 13 years | Consistent |
| High Beam | H4651(1975–1988) 194(1979–1989) | 13 years | Changed |
| Low Beam | H4656(1975–1988) H6054(1979–1980) | 12 years | Changed |
| Dome Light | 906(1988–1988) | 1 years | Consistent |
| Turn Signal Front | 1157A(1975–1984) 1157(1977–1978) | 9 years | Changed |
| Turn Signal Rear | 1157(1975–1983) 1156(1980–1980) | 8 years | Changed |
Common Skyhawk Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Buick Skyhawk from 1975 to 1989, covering 13 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Buick Skyhawk changed low beam bulb specifications across generations: 1975–1988: H4656; 1979–1980: H6054. Make sure to check your exact year using the list below.
The Buick Skyhawk 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 Buick Skyhawk 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.