5 Years Available
Saturn Ion Light Bulb Sizes
Complete bulb size reference for the Saturn Ion from 2003 to 2007. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
Our database lists the same 9007 low beam bulb for Saturn ion entries from 2003 to 2007. Confirm your trim and factory lighting package before buying.
Year Range
2003 – 2007
5 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| Low Beam | 9007(2003–2007) | 5 years | Consistent |
| High Beam | 9007(2003–2007) | 5 years | Consistent |
| Brake Light | PC175(2003–2007) | 5 years | Consistent |
| Side Marker | 3057(2003–2007) | 5 years | Consistent |
| Turn Signal Front | 5702AK(2003–2007) | 5 years | Consistent |
| Turn Signal Rear | 3057(2003–2007) | 5 years | Consistent |
| Reverse Light | 921K(2003–2007) | 5 years | Consistent |
| Dome Light | 561(2003–2007) | 5 years | Consistent |
| License Plate | 194(2003–2007) | 5 years | Consistent |
| Map Light | 192(2003–2007) | 5 years | Consistent |
| Parking Light | 5702AK(2003–2007) | 5 years | Consistent |
| Trunk Light | 912(2003–2007) | 5 years | Consistent |
| Tail Light | 3157CK(2003–2007) 3057(2005–2005) | 5 years | Changed |
Common Ion Replacement Parts
Select Your Year
More from Saturn
Frequently Asked Questions
We have bulb size data for the Saturn Ion from 2003 to 2007, covering 5 model years. Select your year below for a complete position-by-position bulb chart.
No, the Saturn Ion has used the 9007 low beam bulb consistently across all 5 model years in our database. Any year in the 2003–2007 range uses the same bulb.
The Saturn Ion uses a 9007 bulb for the low beam (same bulb serves both high and low beam via dual filament). Select your year below for the exact fitment chart.
Yes. The Saturn Ion uses a 9007 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.