29 Years Available
Mercury Grand Marquis Light Bulb Sizes
Complete bulb size reference for the Mercury Grand Marquis from 1975 to 2011. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Mercury grand-marquis changed low beam specifications across model years — 1998–2005: 9007; 2006–2011: 9008; 1979–1990: H4656; 1993–1997: 9006; 1975–1978: H5006. Make sure to select your exact year below to get the right bulb size.
Year Range
1975 – 2011
29 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status / Shop |
|---|---|---|---|
| Side Marker | 194(1977–2002) 3157CK(2007–2010) 168(1975–1980) 3157(2003–2005) 1157(1979–1986) 3457NA(2006–2011) | 29 years | Changed |
| Turn Signal Front | 3157CK(1994–2007) 3457NA(1999–2011) 1157A(1975–1985) 3157NA(1993–1995) 1157(1986–1986) | 28 years | Changed |
| Fog Light | 9140(2006–2011) | 6 years | Consistent |
| Low Beam | 9007(1998–2005) 9008(2006–2011) H4656(1979–1990) 9006(1993–1997) H5006(1975–1978) | 29 years | Changed |
| Parking Light | 3457NA(1999–2010) 1157A(1975–1986) 3157CK(1996–2011) 916NA(1993–1995) | 28 years | Changed |
| Turn Signal Rear | 3157CK(1994–2011) 1157(1975–1986) 3157(1990–2005) | 29 years | Changed |
| Reverse Light | 3156(1990–2011) 1156(1975–1986) | 29 years | Changed |
| Tail Light | 3157CK(1990–2011) 1157(1975–1986) 3157(1995–2005) | 29 years | Changed |
| License Plate | 168(1977–2011) 194(1975–1995) | 29 years | Changed |
| Brake Light | 912(1995–2010) 1157(1975–1986) 3157CK(1994–2011) 3157(1990–1993) | 29 years | Changed |
| Map Light | 168(1993–2011) 912(1980–1986) | 21 years | Changed |
| Dome Light | 906(1990–2011) 912(1980–1986) | 24 years | Changed |
| High Beam | 9007(1998–2005) 9008(2006–2011) H4651(1979–1990) 9005(1993–1997) H5001(1975–1978) | 29 years | Changed |
| Trunk Light | 906(1983–1994) | 4 years | Consistent |
Common Grand Marquis Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Mercury Grand-Marquis from 1975 to 2011, covering 29 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Mercury Grand-Marquis changed low beam bulb specifications across generations: 1998–2005: 9007; 2006–2011: 9008; 1979–1990: H4656; 1993–1997: 9006; 1975–1978: H5006. Make sure to check your exact year using the list below.
The Mercury Grand-Marquis uses a 9007 bulb for the low beam (same bulb serves both high and low beam via dual filament), and a 9140 for the fog lights. Select your year below for the exact fitment chart.
Yes. The Mercury Grand-Marquis 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.