Sylvania 4257NALL.BP2 Parking Light Bulb - Front or Rear

Sylvania Long Life Parking Light Bulb for Ford

The Sylvania Long Life Blister Pack TWIN parking light bulb is a 12.8-volt incandescent replacement for exterior auxiliary lighting on select Ford trucks and vans. Built for standard performance, it is a practical choice for Ford F-150, F-250 Super Duty, F-350 Super Duty, and E-350 Super Duty applications that use the 4257NA bulb type.

The 4257NALL.BP2 is street legal and uses a dual-filament design with 30.00 watts of output and 8.89 secondary wattage. For drivers searching for a Ford parking light bulb, amber turn signal bulb, or side marker light replacement, this Sylvania bulb line is focused on durability, lower maintenance, and consistent exterior lighting performance.

Key Features

• Part number 4257NALL.BP2 for direct reference
• 12.8-volt incandescent bulb technology
• 4257NA bulb type for exterior auxiliary lighting
• Dual-filament construction
• Street legal for approved road use
• Designed for turn signal and side marker light applications
• Sylvania Long Life Blister Pack TWIN product line

Product Details

Sylvania Long Life miniature bulbs are built for standard lighting performance in interior and exterior auxiliary positions. This amber incandescent parking light bulb is intended for visibility-focused applications where a reliable signal and marker light matter, including front lighting positions on select Ford Super Duty trucks and Ford F-150 configurations. The 4257NALL.BP2 part number is commonly searched by buyers replacing a worn parking light bulb or matching an OE-style 4257NA lamp.

This part cross-references Sylvania 4257NALL.BP2 for the same application.

What It Helps Solve

• Dim or failed parking light output
• Burned-out turn signal or side marker bulb
• Amber exterior lamp replacement on select Ford models
• Road-legal lighting service for inspection or maintenance repairs
• Reduced maintenance from a long-life bulb design

Fitment and Installation Notes

• Fits 2023-2025 Ford F-350 Super Duty, front
• Fits 2023-2024 Ford F-250 Super Duty, N/A
• Fits 2023 Ford E-350 Super Duty, front
• Fits 2023 Ford F-150, N/A, without LED Turn Signal
• Fits 2020-2022 Ford F-150, N/A
• Fits 2022 Ford F-250 Super Duty, front
• Fits 2020 Ford F-250 Super Duty, front
• Fits 2021 Ford F-350 Super Duty, rear
• Fits 2019 Ford F-150, front, with LED Headlights
• Fits 2018 Ford F-350 Super Duty, front, with Factory Halogen Headlights

Verify the existing bulb type before installation and match the vehicle’s lighting configuration, especially on Ford F-150 and Super Duty models with LED or halogen-specific notes. Use the vehicle’s original lamp specification to confirm the 4257NA application before replacement.

Quality Assurance

Sylvania Long Life bulbs are engineered for durability and lower maintenance in exterior lighting service. The street-legal designation and incandescent construction support dependable replacement use in approved parking light, turn signal, and side marker applications.