Dodge Grand Caravan 2003 Bulb Size
Bulb size chart
This page helps you verify the bulb sizes for the 2003 Dodge Grand Caravan by lighting position, so you can match the correct replacement to each socket instead of guessing by appearance. Use it as a quick reference for exterior, interior, and dash lighting before you buy.
For this model year, several bulbs are shared across multiple locations, while others are specific to a single function. That makes it especially important to check the exact light position on your van, since trim level, market, and body style can affect the final fitment.
Before ordering, compare the bulb listed on this page with the one already installed in your vehicle, especially if your Grand Caravan has an optional lighting package or a previous repair. Halogen and LED replacements may fit the same socket but behave differently in brightness, beam pattern, and electrical load, so an aftermarket LED conversion may need additional compatibility checks. If you are replacing a bulb that has been changed before, do not assume the current part is original; verify the base style and physical size first, then confirm the lighting function. This is the safest way to avoid returns and ensure the new bulb works correctly in your 2003 Dodge Grand Caravan.
FAQ
What headlight bulb does a 2003 Dodge Grand Caravan use?
The headlight bulb listed for both high beam and low beam on the 2003 Dodge Grand Caravan is 9007.
What bulb is used for the front turn signal on this van?
The front turn signal bulb is 3157A. The same bulb type is also listed for the front parking light and front side marker light positions.
What bulb fits the rear brake lights?
The rear brake light bulb is 3057R on this page.
What bulb is used for the tail lights?
The tail light bulb is also 3057R for the 2003 Dodge Grand Caravan.
What is the reverse light bulb size?
The back up reverse light bulb is 3057.
What bulb does the rear turn signal use?
The rear turn signal light bulb is 3057A.
What bulb is listed for the center high mount stop light?
The center high mount stop light bulb is 921.
What bulb size is used for the license plate lights?
The license plate light bulb is 168.
What interior bulbs are used for the dome, map, and cargo lights?
The dome light bulb, map light bulb, and trunk or cargo area light are listed as 578.
What bulb is used for the glove box light?
The glove box light bulb is 194.
What is the instrument panel bulb size?
The instrument panel light bulb is PC74.
Does this page cover fog light bulbs for the 2003 Dodge Grand Caravan?
Yes. The front fog light bulb is listed as 9040, but it is marked optional.
Why does the page mention trim and market differences?
Because lighting packages can vary by body style, trim, and sales market, so some 2003 Dodge Grand Caravan vans may have different equipment even within the same model year.
Can I switch to LED bulbs using these sizes?
Often yes, but you need to match the socket size and also check polarity, fit, and heat management. Some LED replacements may require resistors or may not produce the same beam pattern as halogen bulbs.
Should I check the old bulb before buying a replacement?
Yes. Checking the installed bulb is the best way to confirm fitment, especially if the vehicle has had prior repairs, aftermarket parts, or a non-original lighting setup.