Phillips 4157NALLB2 Turn Signal Light Bulb - Front, Front Inner or Rear

Philips 4157NALLB2 Turn Signal Bulb Overview

Philips LongerLife bulbs are built for drivers who want dependable lighting value in a turn signal light bulb application. The 4157NALLB2 uses an amber bulb color, a 2-filament design, and a 12.8/14-volt rating for exterior signal and lighting positions across a wide range of vehicles.

Compatible With select Toyota Tundra, Chevrolet Silverado, GMC Sierra, Dodge Challenger, and Ford F-150 applications, this Philips 4157NALLB2 bulb is a direct-fit lighting service part for many front, rear, and N/A positions listed below.

Key Features

• Philips LongerLife line for value-focused replacement lighting
• Amber bulb color for turn signal and exterior indicator use
• 2-filament construction for dual-function lighting applications
• 12.8/14-volt electrical rating
• 28.5/7.5-watt specification
• W2,5x16q base with push-type contact design
• Cross-reference: Four Seasons 73340
• Part number 4157NALLB2 for catalog lookup and fitment verification

Product Details

The Philips LongerLife - Twin Blister Pack line is positioned for drivers who want a practical replacement bulb without changing the original lighting setup. This bulb is commonly used in exterior signal applications where amber output and stable electrical performance matter. The 4157NALLB2 part number also helps simplify ordering when servicing vehicles such as the Toyota Tacoma, Toyota Sequoia, and Chevrolet Impala.

This bulb cross-references Four Seasons 73340 for the same application. Use the part number 4157NALLB2 when confirming the correct bulb against your vehicle’s original specification.

What It Helps Address

• Burned-out turn signal or indicator bulb
• Dim or inconsistent amber signal output
• Exterior lighting service on front or rear signal positions
• Replacement needs for vehicles using the W2,5x16q base
• Fitment matching for halogen capsule headlight and related lighting applications listed in the catalog

Installation Notes and Tips

Verify the original bulb number, base style, contact count, and voltage rating before installation. Confirm the vehicle position shown in the fitment data, since this bulb is listed for front, rear, front inner, and N/A positions depending on the application. For best results, handle the bulb carefully and align the push-type base fully before restoring power.

Fitment examples include 2007-2018 Toyota Tundra, front; 2008-2018 Toyota Sequoia, front; 2007-2013 Chevrolet Silverado 1500, front; 2004-2013 GMC Sierra 1500, front; and 2018 Ford F-150, rear.

Quality Assurance

Philips is a recognized lighting brand with a LongerLife product line focused on practical replacement value. The 4157NALLB2 is specified with defined electrical and base characteristics to support accurate parts matching for exterior lighting service.