What Size Bulbs Does a 1988 Plymouth Gran Fury 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 1988 Plymouth Gran Fury Have?
The 1988 Plymouth Gran Fury features an extensive lighting system with 13 bulb positions. It uses halogen technology with H4656 LED low beams and 194 high beams in a dual-bulb configuration. The Gran Fury has been available from 1986 to 1989, and the 1988 model falls in the mid-generation years.
Can You Put LED Bulbs in a 1988 Plymouth Gran Fury?
To upgrade the 1988 Plymouth Gran Fury headlights to LED, you will need a H4656 LED LED kit for the low beams and a 194 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 1988 Plymouth Gran Fury
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 1988 Gran Fury 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 13 Positions at Once
1988 Plymouth Gran Fury Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | H4656 LED | Buy H4656 LED |
High Beam | 194 | Buy 194 |
Fog Light | LED Fog Light | Buy LED Fog Light |
Brake Light | 194 | Buy 194 |
Side Marker | 168 LED | Buy 168 LED |
Turn Signal Front | 194NA LED | Buy 194NA LED |
Turn Signal Rear | 1157 LED | Buy 1157 LED |
Reverse Light | 1156 | Buy 1156 |
Dome Light | 211-2 | Buy 211-2 |
License Plate | 168 | Buy 168 |
Map Light | 912 | Buy 912 |
Parking Light | 194NA | Buy 194NA |
Trunk Light | 105 | Buy 105 |
Want to upgrade everything at once?
Shop Complete LED Kit for 1988 Plymouth Gran FuryHow Long Do 1988 Plymouth Gran Fury Headlight Bulbs Last?
Standard halogen headlights on the 1988 Plymouth Gran Fury 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 38 years old, the original bulbs on your Gran Fury 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 1988 Plymouth Gran Fury?
The H4656 low beam bulb on the 1988 Plymouth Gran Fury is a specific fitment. There are no widely recognized cross-compatible alternatives, so make sure to purchase the exact H4656 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.
1988 Plymouth Gran Fury Headlight FAQ
Did Plymouth Gran Fury Bulb Sizes Change Over the Years?
The Plymouth Gran Fury has maintained consistent bulb sizes across all model years from 1986 to 1989. The low beam has used a H4656 LED bulb throughout, which means replacement parts and LED upgrade kits are widely available and well-tested for this model. If you find a deal on bulbs for any Gran Fury year in this range, they will fit your 1988 model.
Other Gran Fury Years
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Other Vehicles That Use H4656 LED Bulbs
These vehicles from other makes also use a H4656 LED low beam bulb: