Restore your Mustang’s interior lighting with this 1965–1973 Ford Mustang Under Dash Courtesy Bulb (No. 631)—the correct replacement for brightening the footwell area and enhancing visibility inside your vehicle.

Designed for under-dash courtesy light applications, this No. 631 bulb provides the proper brightness and factory-style illumination used in 1965 through 1973 Mustang models. Whether you're replacing a burned-out bulb or completing a restoration, it helps bring back the original look and function of your interior lighting.

Features:

• Correct No. 631 bulb for 1965–1973 Ford Mustang
• Designed for under dash courtesy light applications
• Provides factory-style brightness and color
• Easy plug-and-play installation
• Reliable, long-lasting performance

Perfect for:

• Classic Mustang restorations
• Replacing dim or burned-out courtesy bulbs
• Improving interior visibility and functionality

Bring your Mustang’s interior back to life with this correct-fit courtesy bulb—an easy upgrade that restores both convenience and original detail.