Used for: Headlight Bulb Low Beam
Used for: Back Up Reverse Light Bulb, Turn Signal Light Bulb Front
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Center High Mount Stop Light Bulb, Instrument Panel Light Bulb(Compare to original - Option 2)
Used for: License Plate Light Bulb
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Courtesy Light Bulb
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Courtesy Light Bulb
Used for: Turn Signal Light Bulb Rear
Used for: Check Engine Light Bulb, High Beam Indicator Light Bulb, Instrument Panel Light Bulb(Compare to original - Option 1), Parking Brake Indicator Light Bulb
Used for: Dome Light Bulb, Engine Compartment Light Bulb, Trunk or Cargo Area Light
Used for: Dome Light Bulb, Engine Compartment Light Bulb, Glove Box Light Bulb, Trunk or Cargo Area Light
Used for: Map Light Bulb
This page helps you verify bulb sizes for the 1999 Porsche 911 by lighting position, so you can match the correct replacement to each exterior and interior lamp. Because the 911 could be equipped with different trim, market, and lighting packages, checking the exact location first is the safest way to avoid ordering the wrong bulb.
For the 1999 Porsche 911, common fitments include D2S low beam headlights, 7506 front turn signal bulbs, 7507 rear turn signal bulbs, and 7528 bulbs for the brake and tail lights. Interior and utility lights also use several different sizes, including 6411/6428, 6418, 2821, 2825/98, 2886X, and 2351MFX6 depending on the position.
Always confirm the installed bulb before buying, especially on a 1999 Porsche 911 where trim and package differences can change the fitment. If your car has been converted to LED or fitted with aftermarket lighting, the bulb type on the page may still be correct for the original housing, but the actual replacement may need resistors, adapters, or a different base style. Halogen and HID systems are not interchangeable, and the low beam uses D2S, so compare the old bulb, connector, and housing before purchase to make sure the replacement is compatible.
The low beam headlight bulb listed for the 1999 Porsche 911 is D2S. This is the correct starting point for the factory low beam setup on this page.
The front turn signal light bulb is 7506. Use this position-specific listing for the front signal lamp, not the rear turn signal bulb.
The rear turn signal light bulb is 7507. Rear and front signal bulbs are different on the 1999 Porsche 911, so it is important to check the location before ordering.
Both the brake light bulb and tail light bulb are listed as 7528 for the 1999 Porsche 911. That makes it easier to replace either rear lamp with the correct match.
The back up reverse light bulb is 7506. This is the same bulb size listed for the front turn signal on this page, but the application is different.
The license plate light bulb is 6418. If one license plate lamp is out, it is a good idea to replace both sides at the same time if they use the same bulb.
The dome light bulb, trunk or cargo area light bulb, and engine compartment light bulb are listed as 6411 or 6428. The exact bulb can vary by position and trim, so compare the installed bulb before buying.
The glove box light bulb is 6428. This is a small interior bulb, so check the socket style carefully if your car has been modified.
The map light bulb is 2886X. This is the listed fitment for the 1999 Porsche 911 map light position on this page.
The parking light bulb and front side marker light bulb are listed as 2825 or 98. These positions share the same bulb options on this page.
The center high mount stop light bulb is 2821. If the third brake light is dim or out, this is the bulb to check first.
The instrument panel light bulb is listed with two compare-to-original options: 2821 for Option 2 and 2351MFX6 for Option 1. That means the correct bulb can vary, so you should verify the installed bulb in your specific car.
Yes. Trim, lighting package, market, and body style can affect bulb fitment on the 1999 Porsche 911, so this page should be used as a position guide rather than a one-size-fits-all answer.
For exterior lighting, replacing bulbs in pairs is often a good idea because it helps keep brightness and color consistent. This is especially useful for headlights, turn signals, and tail lamps on a 1999 Porsche 911.
