
PIAA 19615 9005 (HB3) Xtreme White Plus
$64.57
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Used for: Headlight Bulb High Beam, Headlight Bulb Low Beam(with projector-type headlights)
Used for: Headlight Bulb Low Beam(without projector-type headlights)
Used for: Back Up Reverse Light Bulb (with projector-type headlights)
Used for: Back Up Reverse Light Bulb (without projector-type headlights), Center High Mount Stop Light Bulb, Trunk or Cargo Area Light
Used for: Brake Light Bulb(without projector-type headlights)
Used for: License Plate Light Bulb, Glove Box Light Bulb
Used for: License Plate Light Bulb, Glove Box Light Bulb
Used for: Parking Light Bulb(without projector-type headlights), Side Marker Light Bulb Front(without projector-type headlights), Turn Signal Light Bulb Front(without projector-type headlights)
Used for: Side Marker Light Bulb Rear(without projector-type headlights)
Used for: Tail Light Bulb(without projector-type headlights)
Used for: Turn Signal Light Bulb Rear(without projector-type headlights)
Used for: Engine Compartment Light Bulb
Used for: Map Light Bulb
This 2018 RAM 2500 bulb size page helps you verify the correct bulbs by lighting position, so you can match the right part before you buy. Because trim level, body style, and lighting package can change the fitment, it is important to check the exact lamp location on your truck rather than relying on a single bulb number for every version.
Use this guide to identify common exterior and interior bulbs on the 2018 RAM 2500, including headlights, turn signals, tail lights, reverse lights, license plate lights, map lights, and cargo-area lighting. The listings below are organized by position to make replacement easier and to reduce the chance of ordering the wrong bulb.
Fitment can vary between projector-type and non-projector headlights, and some trucks may use different bulbs depending on market, cab style, or lighting package. The 2018 RAM 2500 may also have halogen or LED setups, and aftermarket conversions can change the correct replacement choice. Before ordering, check the bulb currently installed in your truck and compare the base, connector, and shape to the listing on this page. If a previous owner upgraded to LEDs or changed housings, the original bulb size may no longer match what is in the vehicle now.
The low beam bulb depends on headlight type. 2018 RAM 2500 models with projector-type headlights use 9005 for the low beam, while models without projector-type headlights use H11.
The high beam headlight bulb is 9005 on the 2018 RAM 2500.
For trucks without projector-type headlights, the front turn signal bulb is 3157A.
The rear turn signal bulb for non-projector setups is 3057.
The brake light bulb for models without projector-type headlights is 3057R.
Reverse light fitment depends on headlight configuration. Trucks with projector-type headlights use 7440 for the back up reverse light, while trucks without projector-type headlights use 921.
The center high mount stop light bulb is 921 on the 2018 RAM 2500.
The license plate light bulb can be 194 or 7441 on the 2018 RAM 2500.
The map light bulb is 578.
The glove box light bulb can be 194 or 7441.
Yes. Several exterior bulbs differ by headlight type, including the low beam, front turn signal, parking light, side marker, brake light, rear turn signal, tail light, and reverse light.
Check the bulb location, confirm whether your truck has projector-type headlights, and compare the installed bulb to the listing before purchasing. This is the best way to avoid fitment mistakes on a 2018 RAM 2500.