BlueBird BLB3156 OEM Back-Up Light Bulb 3156 Single Filament Replacement

The BlueBird BLB3156 is an OEM-specification back-up (reverse) light bulb designed for Blue Bird school buses and commercial vehicles. Using the industry-standard 3156 single-filament bulb format with a wedge base (T25/W2.5×16q), this replacement bulb delivers reliable, consistent illumination for reverse lighting applications.

Key Features:

• OEM Part Number: BLB3156 — genuine Blue Bird specification replacement
• Bulb Type: 3156 single-filament incandescent, T25 wedge base
• Application: Back-up / reverse light replacement
• Voltage: 12V automotive system compatible
• Cross-Reference: Compatible with standard 3156, 3156A, 3156AK, 3156K, 3156ST, and 3456 bulb positions
• Direct plug-and-play replacement — no modification required
• Meets OEM fit, form, and function requirements for Blue Bird vehicles

The BLB3156 ensures proper reverse light visibility and safety compliance for Blue Bird bus fleets. Its standard 3156 form factor makes it easy to source and stock as part of a routine preventive maintenance program.