16 Years Available
Mercury Marquis Light Bulb Sizes
Complete bulb size reference for the Mercury Marquis from 1967 to 1986. Find headlight, fog light, turn signal, and brake light bulb sizes for every model year.
The Mercury marquis changed low beam specifications across model years — 1967–1978: H5006; 1977–1986: H4656. Make sure to select your exact year below to get the right bulb size.
Year Range
1967 – 1986
16 model yearsBulb Sizes Across Years
| Position | Bulb Type(s) | Years | Status |
|---|---|---|---|
| High Beam | H5001(1967–1978) H4651(1977–1986) | 16 years | Changed |
| Low Beam | H5006(1967–1978) H4656(1977–1986) | 16 years | Changed |
| Turn Signal Front | 1157A(1967–1986) 1157(1970–1983) | 16 years | Changed |
| Side Marker | 194(1970–1986) 168(1975–1980) 1157(1979–1979) 1157A(1969–1969) | 13 years | Changed |
| Reverse Light | 1156(1968–1986) | 15 years | Consistent |
| License Plate | 194(1975–1986) 168(1977–1980) | 9 years | Changed |
| Brake Light | 1157(1967–1985) 912(1986–1986) | 16 years | Changed |
| Turn Signal Rear | 1157(1967–1986) | 16 years | Consistent |
| Tail Light | 1157(1967–1986) 168(1980–1980) | 16 years | Changed |
| Parking Light | 1157A(1967–1986) 1157(1970–1983) | 16 years | Changed |
| Dome Light | 912(1983–1986) 906(1980–1985) | 4 years | Changed |
| Map Light | 912(1980–1986) | 2 years | Consistent |
Common Marquis Replacement Parts
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Frequently Asked Questions
We have bulb size data for the Mercury Marquis from 1967 to 1986, covering 16 model years. Select your year below for a complete position-by-position bulb chart.
Yes, the Mercury Marquis changed low beam bulb specifications across generations: 1967–1978: H5006; 1977–1986: H4656. Make sure to check your exact year using the list below.
The Mercury Marquis uses a H5006 bulb for the low beam and a H5001 for the high beam. Select your year below for the exact fitment chart.
Yes. The Mercury Marquis uses a H5006 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.