The Carquest 921 Bulb is a single-filament automotive bulb designed primarily for backup lights, interior dome lights, license plate illumination, and other auxiliary lighting applications. It provides bright, consistent light to enhance visibility and safety in both interior and exterior vehicle areas. Built with durable tungsten filaments, the 921 bulb withstands vibration and frequent on-off cycling, ensuring reliable and long-lasting performance. Compatible with standard 12V automotive electrical systems, the Carquest 921 is a versatile and dependable solution for various automotive lighting needs.

Product Features:

• OEM specification miniature bulb for direct replacement
• Provides secure and reliable fit in automotive sockets
• Consistent bright output suitable for interior and exterior lighting
• Durable tungsten filament withstands shock vibration
• Compatible with standard 12V automotive electrical systems