Tesla Model S 2018 Bulb Size

Not always. Trim level, lighting package, market, and body style can change the bulb setup, especially for the headlights and some exterior lamps. Use the position-specific listing on this page to confirm the correct bulb type for your exact vehicle.

The page lists the headlight bulb as 9005 and D3S, with separate notes for halogen headlights and HID headlights. That means the correct bulb depends on which headlight system your car has installed.

Check the headlight housing, owner documentation, or the bulb already installed in the car. The page includes a 9005 listing for halogen headlights and a D3S listing for HID headlights, so identifying the current setup is important before buying.

Yes. The front fog light bulb position is listed as LED on this page, so you should verify the exact lamp assembly rather than assuming a replaceable halogen bulb.

Several exterior positions are listed as LED, including the center high mount stop light, brake light, front and rear turn signals, license plate light, parking light, tail light, daytime running light, back up reverse light, and side marker lights.

Yes. The page lists LED for the glove box light, trunk or cargo area light, dome light, map light, interior door light, and door mirror illumination light.

Sometimes, but not always. If the original lamp is already LED, the issue may be the entire module rather than a simple bulb swap. Aftermarket conversions can also affect fitment, beam pattern, and warning messages, so confirm compatibility before buying.

Because the 2018 Model S can vary by market and package, the installed bulb is the most reliable reference. Checking the old bulb helps confirm the base, connector, and exact lighting system, which reduces the chance of ordering the wrong part.

This page lists both front and rear turn signal bulb positions as LED, but that does not mean they are interchangeable in every case. Always match the bulb to the exact location shown on the chart.

If the car has aftermarket LED or HID conversions, the original factory bulb chart may no longer apply. Inspect the current hardware, verify the connector and housing type, and compare the installed parts before ordering replacements.

Yes. The listing includes the license plate light bulb, front side marker light bulb, and rear side marker light bulb, all shown as LED on this page.

Start with the exact lighting position on this page, confirm whether your car has halogen or HID headlights, and compare that information with the bulb currently installed. That approach gives you the best chance of ordering the correct fit the first time.