Hella 7440 Daytime Running Light Bulb

Hella 7440 Daytime Running Light Bulb

The Hella 7440 daytime running light bulb is a 12V incandescent replacement built for exterior lighting applications that call for a W21W bulb with a W3x16d socket base. It is DOT approved and rated at 21 watts, making it a direct-fit lighting service part for a wide range of vehicles, including Honda Civic, Toyota Camry, and Chevrolet Camaro applications.

Hella brings more than a century of lighting and electronics experience to automotive replacement parts. The 7440 reflects that background with precise construction, dependable electrical specs, and OE-style fitment for many front and rear exterior lamp positions.

Key Features

• 12V incandescent daytime running light bulb
• 7440 part number for common exterior lighting service needs
• W21W / T6.5 bulb type with wedge base
• W3x16d socket type compatibility
• 21W wattage for proper lighting output
• DOT approved for road use
• Fits many front and rear exterior lamp applications

Detailed Description

Hella 7440 is a wedge-base exterior bulb used in daytime running light, turn signal, and other lighting positions where a 12V, 21W incandescent bulb is specified. The bulb’s standardized W21W format and W3x16d base make it a practical replacement for many late-model and older vehicles across Honda, Toyota, Chevrolet, Ford, Ram, Nissan, Subaru, and Lexus platforms. If you are servicing a Honda Civic rear lamp, a Toyota Camry rear lamp, or a Chevrolet Camaro exterior lamp, this bulb matches the listed application requirements.

This part cross-references Champion Spark Plug 7440 for the same application.

Common Problems It Solves

• Burned-out daytime running light bulb
• Dim or intermittent exterior lamp output
• Failed rear or front signal lamp bulb
• Bulb replacement after inspection or maintenance
• Restoring proper lighting on vehicles using a 7440/W21W bulb

Installation Notes and Tips

• Verify the socket type is W3x16d before installation.
• Confirm the vehicle uses a 12V, 21W incandescent bulb in the listed position.
• Handle the glass carefully and avoid contamination on the bulb surface.
• Check the lamp housing and connector for heat damage before installing the new bulb.
• Use the fitment list to confirm the exact year, make, model, and position.

Quality Assurance

Hella is a long-established automotive lighting manufacturer with global engineering and production experience. The 7440 is built to meet the electrical and fitment requirements listed for the application, with DOT approval noted in the product data.