Phillips 578LLB2 Dome Light Bulb - Front or Rear

Phillips LongerLife Dome Light Bulb

The Phillips LongerLife dome light bulb is built for drivers who want dependable interior lighting value in a clear, incandescent mini bulb format. With 12.8V operation, a rigid loop base, and DOT approval, this bulb is a practical choice for dome light replacement on a wide range of Ford, Dodge, Ram, Chevrolet, GMC, Jeep, Chrysler, and Toyota applications.

The LongerLife - Twin Blister Pack line focuses on extended service value for everyday vehicle lighting needs. For interior lighting service, Phillips 578LLB2 delivers a clear glass bulb with a single filament design and OE-style fitment characteristics for vehicles that use a rigid loop base dome light bulb.

Key Features

• Part number 578LLB2 for interior dome light replacement
• LongerLife Mini Bulb construction for value-focused service life
• Clear bulb color and clear finish for clean interior illumination
• 12.8V incandescent bulb technology with 12.42W wattage
• RigidLoop base for vehicles using this bulb style
• DOT approved for road-use compliance
• Glass bulb material with C-8 filament type

Detailed Description

Phillips 578LLB2 is an interior dome light bulb engineered for vehicles that require a rigid loop base and a clear incandescent mini bulb. Its compact dimensions, 0.37-inch diameter and 1.69-inch length, make it suitable for dome light housings where the original bulb matches this configuration. The LongerLife bulb line is positioned for drivers who want strong value from a replacement bulb without changing the original lighting style.

This bulb is listed across a broad range of applications, including Fits 2004-2019 Ford E-350 Super Duty, Fits 2006-2020 Dodge Charger, and Fits 2003-2014 Chevrolet Express 1500. It also appears in fitment for models such as the Ram 1500, Jeep Wrangler, and Toyota Tacoma, making part number 578LLB2 a useful reference when searching for a dome light bulb for interior lighting service.

This part cross-references no additional part numbers in the provided data.

What It Helps Solve

• Dim or failed dome light output in the cabin
• Interior lighting that no longer matches the original bulb type
• Replacement needs for rigid loop base dome light sockets
• Service on vehicles with clear incandescent interior bulbs
• Interior light maintenance on fleet and daily-driver applications

Installation Notes and Tips

Verify the original bulb base, length, and voltage before installation. This bulb is intended for dome light applications that use a rigid loop base and a clear incandescent mini bulb design. Match the removed bulb to the vehicle’s original interior lamp specification, especially on applications with multiple lighting configurations across trim levels or model years.

For fitment examples, this bulb is listed for Fits 2007-2018 Jeep Wrangler, Fits 2005-2015 Toyota Tacoma, and Fits 2011-2020 Ram 1500. Always confirm the lamp housing and bulb style against the vehicle’s existing interior light assembly before replacement.

Quality Assurance

Phillips positions the LongerLife line as a value-oriented bulb family for drivers who want dependable replacement lighting. The 578LLB2 is DOT approved and built with incandescent glass construction for interior lighting service.