9 Years Available
Geo Metro Light Bulb Sizes
Complete bulb size reference for the Geo Metro from 1989 to 1997. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Geo metro changed low beam specifications across model years — 1989–1996: H4666; 1997: H4. Make sure to select your exact year below to get the right bulb size.
Year Range
1989 – 1997
9 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| Low Beam | H4666(1989–1996) H4(1997–1997) | 9 years | Changed |
| Turn Signal Front | 1156(1989–1997) | 9 years | Consistent |
| Side Marker | 168(1991–1997) 194(1989–1992) | 9 years | Changed |
| Brake Light | 1157(1990–1997) 921(1996–1996) 1156(1989–1989) | 9 years | Changed |
| Tail Light | 1157(1989–1997) | 9 years | Consistent |
| Reverse Light | 921(1993–1997) 1156(1989–1992) | 9 years | Changed |
| Turn Signal Rear | 1156(1989–1997) 1157(1990–1992) | 9 years | Changed |
| Parking Light | 168(1993–1997) 194(1989–1992) | 9 years | Changed |
| License Plate | 168(1994–1997) | 4 years | Consistent |
| Dome Light | DE3022(1989–1997) | 9 years | Consistent |
Common Metro Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Geo Metro from 1989 to 1997, covering 9 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Geo Metro changed low beam bulb specifications across generations: 1989–1996: H4666; 1997–1997: H4. Make sure to check your exact year using the list below.
The Geo Metro uses a H4666 bulb for the low beam. Select your year below for the exact fitment chart.
Yes. The Geo Metro uses a H4666 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.