Used for: Fog Light Bulb Front, Headlight Bulb Low Beam, Daytime Running Light Bulb
Used for: Fog Light Bulb Front, Daytime Running Light Bulb
Used for: Headlight Bulb High Beam
Used for: Headlight Bulb High Beam and Low Beam
Used for: Back Up Light Bulb Inner, Back Up Reverse Light Bulb
Used for: Back Up Light Bulb Outer
Used for: Brake Light Bulb, Tail Light Bulb, Turn Signal Light Bulb Rear
Used for: Brake Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front, Courtesy Light Bulb
Used for: Side Marker Light Bulb Front, Courtesy Light Bulb
Used for: Stepwell Light Bulb
Used for: Turn Signal Light Bulb Rear
Used for: Check Engine Light Bulb, Check Engine Light Bulb(Compare to original - Option 2), High Beam Indicator Light Bulb, High Beam Indicator Light Bulb(Compare to original - Option 2), Instrument Panel Light Bulb, Parking Brake Indicator Light Bulb, Parking Brake Indicator Light Bulb(Compare to original - Option 2), Turn Signal Indicator Light Bulb, Turn Signal Indicator Light Bulb(Compare to original - Option 2)
Used for: Check Engine Light Bulb(Compare to original - Option 1), High Beam Indicator Light Bulb(Compare to original - Option 1), Parking Brake Indicator Light Bulb(Compare to original - Option 1), Turn Signal Indicator Light Bulb(Compare to original - Option 1)
Used for: Glove Box Light Bulb, Instrument Panel Light Bulb
Used for: Trunk or Cargo Area Light
This 2018 Jeep Grand Cherokee bulb size page helps you verify the correct bulb by lighting position, so you can match the right part before you buy. Because Jeep used different lighting setups across trims, packages, and markets, checking the bulb location is the safest way to confirm fitment for headlights, fog lights, tail lamps, interior lights, and indicators.
Use the chart to find the bulb type for each specific lamp on your Grand Cherokee, from the front headlight assembly to the license plate and cargo area lights. The page is organized by position, which makes it easier to compare your vehicle’s installed bulb with the listed size and avoid ordering the wrong replacement.
For best results, compare your trim level and lighting package with the chart before ordering, since halogen and LED-equipped models may use different bulbs or assemblies. Some 2018 Grand Cherokee setups use halogen bulbs such as H11, H9, 7444NA, 3157, or 921, while other positions may be LED or use a different factory configuration depending on body style and market. If you are planning an aftermarket LED conversion, make sure the bulb base, polarity, and physical clearance are compatible with the housing, and remember that some upgrades may require load resistors or additional adapters. When possible, remove the installed bulb and verify the number printed on the base before purchase, especially for exterior lamps and dashboard indicators where variations can occur.
The listed low beam bulb is H11 for many configurations. Some headlight setups may differ by trim or lighting package, so confirm the bulb in your vehicle before ordering.
The chart shows H9 for the high beam bulb. The headlight bulb listing also includes D3S for certain high beam and low beam applications, so the exact setup can vary.
Front fog lights are listed as H11, with H11 LED also shown as an option. The correct choice depends on whether your Jeep has halogen or LED-style fog lighting.
The daytime running light bulb is listed as H11, with H11 LED also available on some setups. Check the existing bulb and housing before replacing it.
The front turn signal bulb is 7444NA, and the parking light bulb is also 7444NA. These are separate positions in the front lamp assembly but use the same bulb type in the chart.
The rear turn signal bulb is listed as 7440A or 3157, while the brake light bulb is listed as 3157R or 3157. The tail light bulb is also shown as 3157.
The reverse lighting positions include 921 for the back up reverse light and inner back up light, and 7440 for the outer back up light. Make sure you match the correct location on the vehicle.
Yes, the license plate light bulb is listed as LED. If you are replacing it, check whether the lamp is a sealed LED unit or a serviceable bulb-style LED.
The courtesy light bulb is listed as 168 or 2825, and the stepwell light bulb is 906. These are common interior replacement sizes, but the exact fit should still be confirmed by position.
The glove box light bulb is 194, and the trunk or cargo area light is 214-2. These interior bulbs are easy to mix up, so verify the location before buying.
The instrument panel light bulb is listed as 194 or 74. Some indicator lamps on the cluster also show 2721 or 74 depending on the option listed in the chart.
Some dashboard indicators, such as turn signal, parking brake, high beam, and check engine lights, are shown with compare-to-original options like 2721 or 74. That means the exact bulb may depend on the original cluster design or market specification.
Yes. Trim, lighting package, body style, and market can affect bulb type and whether a lamp is halogen or LED. Always compare your vehicle’s installed bulb and housing with the chart before ordering.
In some positions, yes, but fitment is not always plug-and-play. LED conversions may need correct polarity, extra clearance, or load resistors to avoid warning lights or flicker.
Check the bulb number printed on the old bulb, confirm the exact lighting position, and compare your trim or package with the chart. This is the best way to avoid ordering the wrong bulb for your 2018 Jeep Grand Cherokee.
