What Size Bulbs Does a 1984 Peugeot 604 Use?
Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.
Installation Difficulty
Easy (Plug and Play)
Est. Replacement Cost
$15 - $40 (Halogen) / $30+ (LED)
What Lighting System Does the 1984 Peugeot 604 Have?
The 1984 Peugeot 604 features an extensive lighting system with 11 bulb positions. It uses halogen technology with 4652 LED low beams and 4651 LED high beams in a dual-bulb configuration. The 604 has been available from 1978 to 1984, and the 1984 model falls in the late-generation years.
Can You Put LED Bulbs in a 1984 Peugeot 604?
To upgrade the 1984 Peugeot 604 headlights to LED, you will need a 4652 LED LED kit for the low beams and a 4651 LED LED kit for the high beams. Start with the low beams since they are used most often and have the biggest impact on nighttime visibility. For the fog lights, a LED Fog Light LED bulb provides a clean white output that pairs well with LED headlights.
How to Replace Bulbs on a 1984 Peugeot 604
To remove the headlight bulb, disconnect the wiring harness, then twist the bulb counter-clockwise and pull it straight out of the housing. Older model years like the 1984 604 typically offer easy access to the headlight bulbs from behind the headlight assembly under the hood. Most owners can complete the swap in under 10 minutes per side. When installing the new bulb, avoid touching the glass with bare fingers. Skin oils create hot spots that shorten bulb life. Wear clean gloves or handle the bulb by its plastic base only. The fog lights are accessed from underneath the front bumper. You may need to remove a few plastic clips or screws from the fender liner to reach the LED Fog Light fog light socket.
Full Upgrade Bundle
Upgrade All 11 Positions at Once
1984 Peugeot 604 Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | 4652 LED | Buy 4652 LED |
High Beam | 4651 LED | Buy 4651 LED |
Fog Light | LED Fog Light | Buy LED Fog Light |
Brake Light | Brake Light Assembly | Buy Brake Light Assembly |
Side Marker | 5007 LED | Buy 5007 LED |
Turn Signal Front | 7506 LED | Buy 7506 LED |
Turn Signal Rear | 7506 LED | Buy 7506 LED |
Reverse Light | 7506 | Buy 7506 |
License Plate | 5007 | Buy 5007 |
Parking Light | 5007 | Buy 5007 |
Trunk Light | LED Light | Buy LED Light |
Want to upgrade everything at once?
Shop Complete LED Kit for 1984 Peugeot 604How Long Do 1984 Peugeot 604 Headlight Bulbs Last?
Standard halogen headlights on the 1984 Peugeot 604 have an expected lifespan of 500 to 1,000 hours, which works out to roughly 2 to 3 years of normal use. Signs of a failing halogen bulb include noticeably dimmer output, a yellowish tint compared to the other headlight, or intermittent flickering. At 42 years old, the original bulbs on your 604 are likely overdue for replacement. Even if they still illuminate, reduced brightness significantly impacts nighttime safety. When one headlight burns out, replace both sides at the same time. Bulbs from the same batch age at similar rates, and mismatched brightness is distracting to oncoming drivers.
What Bulbs Are Compatible with the 1984 Peugeot 604?
The 4652 low beam bulb on the 1984 Peugeot 604 is a specific fitment. There are no widely recognized cross-compatible alternatives, so make sure to purchase the exact 4652 size. Using the wrong bulb size can cause improper beam patterns that reduce your visibility and blind other drivers. It can also cause overheating inside the headlight housing, potentially warping the plastic lens or reflector. Always verify the bulb number before purchasing.
1984 Peugeot 604 Headlight FAQ
Did Peugeot 604 Bulb Sizes Change Over the Years?
Over its production run from 1978 to 1984, the Peugeot 604 has seen bulb size changes in the Low Beam and High Beam positions. The 1984 model uses the newer bulb specification introduced around 1980. Always verify the exact bulb size for your specific 1984 model year using the chart above, as using the wrong size can result in poor fitment or reduced light output.
Other 604 Years
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Other Vehicles That Use 4652 LED Bulbs
These vehicles from other makes also use a 4652 LED low beam bulb: