What Size Bulbs Does a 1991 Dodge B350 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 1991 Dodge B350 Have?
The 1991 Dodge B350 features an extensive lighting system with 12 bulb positions. It uses halogen technology with 6052 LED low beams and 194 high beams in a dual-bulb configuration. The B350 has been available from 1988 to 1994, and the 1991 model falls in the mid-generation years. As a Dodge vehicle, it uses a CANbus electrical system that monitors bulb status.
LED Flicker Warning
This vehicle (Dodge) is known to use a CANbus system that checks for burnt-out bulbs. Installing standard LEDs may cause them to flicker or trigger a dashboard error.
We highly recommend using a CANbus decoder or "Anti-Flicker" resistors.
Can You Put LED Bulbs in a 1991 Dodge B350?
To upgrade the 1991 Dodge B350 headlights to LED, you will need a 6052 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. Important: Dodge vehicles use a CANbus system that detects bulb wattage. Standard LED bulbs may trigger dashboard warnings or flicker. Choose LED kits labeled "CANbus-compatible" or add inline decoder resistors to prevent these issues. 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 1991 Dodge B350
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 1991 B350 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 12 Positions at Once
1991 Dodge B350 Complete Bulb Size Chart
| Position | Bulb Size | Shop |
|---|---|---|
Low Beam | 6052 LED | Buy 6052 LED |
High Beam | 194 | Buy 194 |
Fog Light | LED Fog Light | Buy LED Fog Light |
Brake Light | 194 | Buy 194 |
Side Marker | 194 LED | Buy 194 LED |
Turn Signal Front | 2057 LED | Buy 2057 LED |
Turn Signal Rear | 1157 LED | Buy 1157 LED |
License Plate | 168 | Buy 168 |
Map Light | 906 | Buy 906 |
Parking Light | 2057 | Buy 2057 |
Reverse Light | 1156 | Buy 1156 |
Trunk Light | 211-2 | Buy 211-2 |
Want to upgrade everything at once?
Shop Complete LED Kit for 1991 Dodge B350How Long Do 1991 Dodge B350 Headlight Bulbs Last?
Standard halogen headlights on the 1991 Dodge B350 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 35 years old, the original bulbs on your B350 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 1991 Dodge B350?
The 6052 low beam bulb on the 1991 Dodge B350 is a specific fitment. There are no widely recognized cross-compatible alternatives, so make sure to purchase the exact 6052 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.
1991 Dodge B350 Headlight FAQ
Did Dodge B350 Bulb Sizes Change Over the Years?
Over its production run from 1988 to 1994, the Dodge B350 has seen bulb size changes in the Low Beam, High Beam and Brake Light positions. The 1991 model uses the earlier bulb specification that was in place before the change around 1993. Always verify the exact bulb size for your specific 1991 model year using the chart above, as using the wrong size can result in poor fitment or reduced light output.
Other B350 Years
More from Dodge
Other Vehicles That Use 6052 LED Bulbs
These vehicles from other makes also use a 6052 LED low beam bulb: