9 Years Available
Pontiac Grand Lemans Light Bulb Sizes
Complete bulb size reference for the Pontiac Grand Lemans from 1975 to 1983. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Pontiac grand-lemans changed low beam specifications across model years — 1976–1983: H4656; 1978–1981: H6054; 1975: H6024. Make sure to select your exact year below to get the right bulb size.
Year Range
1975 – 1983
9 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| Side Marker | 194(1975–1983) | 9 years | Consistent |
| High Beam | H4651(1976–1983) H6054(1978–1981) H6024(1975–1975) | 9 years | Changed |
| Low Beam | H4656(1976–1983) H6054(1978–1981) H6024(1975–1975) | 9 years | Changed |
| Reverse Light | 1156(1975–1983) 1157(1980–1980) | 9 years | Changed |
| License Plate | 194(1975–1983) | 9 years | Consistent |
| Turn Signal Front | 1157A(1975–1982) | 8 years | Consistent |
| Turn Signal Rear | 1157(1975–1982) 1156(1978–1978) | 8 years | Changed |
| Tail Light | 1157(1975–1982) 194(1981–1981) | 8 years | Changed |
| Parking Light | 1157A(1975–1982) | 8 years | Consistent |
| Brake Light | 1157(1975–1982) | 8 years | Consistent |
Common Grand Lemans Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Pontiac Grand-Lemans from 1975 to 1983, covering 9 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Pontiac Grand-Lemans changed low beam bulb specifications across generations: 1976–1983: H4656; 1978–1981: H6054; 1975–1975: H6024. Make sure to check your exact year using the list below.
The Pontiac Grand-Lemans 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 Pontiac Grand-Lemans 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.