Hella 3893TB Courtesy Light Bulb - Front or Rear

Hella 3893TB Courtesy Light Bulb

The Hella 3893TB is a 12V incandescent courtesy light bulb built for interior lighting applications that require a miniature bayonet base and 4W output. It is a direct-fit option for a wide range of European vehicles, including Mercedes-Benz G-Class, Ferrari 488, and classic Porsche 911 applications.

Key Features

• 12V incandescent courtesy light bulb for interior lighting use
• 4W wattage for low-draw cabin and courtesy lamp circuits
• Miniature bayonet base with T2.75 bulb type
• OE-style replacement for BA9s socket applications
• Hella part number 3893TB for catalog matching and service lookup

Product Details

Hella 3893TB is engineered for vehicles that use a 12-volt, 4-watt miniature bayonet courtesy bulb. The incandescent design delivers the familiar light output used in glove box lamps, dome lights, map lights, and other interior courtesy lighting points where the original bulb specification calls for a BA9s-style fitment. This part number 3893TB is listed across a broad range of applications, including Mercedes-Benz G500, G550, G63 AMG, and G65 AMG models, as well as Ferrari 458, 488 GTB, 488 Spider, California T, and Porsche 911 fitments.

Hella is a long-established automotive lighting and electronics manufacturer with extensive research and development resources and a global OE-focused product portfolio. The Hella brand line emphasizes precision workmanship, reliability, and consistent lighting performance for service replacement needs.

This part cross-references Monroe Shocks & Struts (e.g., PHLT4WLLB2) for the same application.

What It Helps Address

• Dim or failed interior courtesy lighting
• Burned-out glove box, map, or dome lamp bulbs
• Restoration of original bulb specification in BA9s socket systems
• Service replacement for vehicles with 12V 4W incandescent interior lamps
• Lighting maintenance on Mercedes-Benz G-Class, Ferrari, Audi, Jaguar, Volvo, Saab, Volkswagen, Land Rover, BMW, and Porsche applications

Installation Notes and Tips

• Verify the socket type is BA9s or miniature bayonet before installation.
• Match the original voltage and wattage rating to avoid lighting mismatch.
• Handle the bulb carefully during installation to reduce premature failure from contamination or impact.
• Confirm the vehicle position listed in the fitment data, such as front, rear, or N/A, before ordering.

Quality Assurance

Hella develops and manufactures automotive lighting and electronic components for global vehicle applications, with a long history in OE-focused engineering and service parts support. The 3893TB follows the specified 12V, 4W incandescent format for consistent replacement use.