Phillips 631B2 Dome Light Bulb

Phillips 631B2 Dome Light Bulb Overview

Phillips 631B2 is a standard mini incandescent dome light bulb built for interior lighting applications that call for a clear glass bulb with a BA15s base. It uses a 14-volt design, 8.82-watt output, and a dual-filament 2C-2R setup for dependable illumination in a wide range of classic GM and Ford applications.

The Philips Standard - Twin Blister Pack line focuses on straightforward replacement lighting with practical value for everyday service work. For buyers searching for a Phillips 631B2 dome light bulb for Chevrolet Caprice, Camaro, Impala, or Ford Mustang interior lighting, this part provides an OE-style service option with the correct base and bulb dimensions.

Key Features

• Standard mini bulb construction for interior dome light use
• Clear glass bulb with clear finish for direct light output
• BA15s base type for proper socket engagement
• 14-volt electrical rating with 0.63 amp draw
• Incandescent bulb technology for traditional lighting performance
• Dual-filament 2C-2R design
• Fits a broad range of Chevrolet, Buick, Pontiac, Oldsmobile, Ford, Jeep, Lincoln, Mercury, and Cadillac-era applications listed in the fitment data

Detailed Description

Phillips 631B2 is a dome light bulb designed around standard replacement specifications: 0.74-inch diameter, 1.44-inch length, glass bulb material, and a BA15s base. The clear bulb color and incandescent design deliver familiar interior lighting characteristics for vehicles that use this style of socket and electrical load. This part number, 631B2, is listed across many classic applications including Chevrolet Caprice, Chevrolet Camaro, and Ford Mustang interior lighting setups.

Fitment coverage spans 1962-1992 model years, with direct listings for vehicles such as Fits 1964-1971 Ford Mustang, N/A; Fits 1968-1971 Chevrolet Camaro, N/A; and Fits 1978-1984 Oldsmobile 98, N/A. If you are replacing a dome light bulb in a Chevrolet Impala, Pontiac Firebird, or Ford Econoline van, 631B2 is the type of standard mini bulb specified for those interior lighting positions.

This part cross-references Gates 23023 for the same application.

What This Bulb Helps Address

• Dim or failed dome light illumination
• Interior lighting that no longer matches the original bulb base or size
• Intermittent lighting caused by worn bulb contacts
• Replacement needs for classic vehicle interior lamps
• Service work on vehicles requiring a standard mini bulb with BA15s base

Installation Notes and Tips

Verify the socket style, bulb length, and base type before installation. Match the BA15s base and confirm the vehicle uses a 14-volt incandescent interior bulb specification. Handle the glass bulb carefully during installation and avoid forcing the bulb into the socket. For fitment confirmation, compare your original bulb to the listed dimensions and vehicle application data before final assembly.

Quality Assurance

Phillips Standard range is positioned as a value-focused replacement line for common lighting applications. The 631B2 follows standard bulb construction and published specifications to support consistent fitment in the listed vehicles and interior lighting applications.