Depo K31-1188R-UC Headlight Assembly - Right

Right Headlight Assembly for 2003-2004 Grand Marquis

This Depo headlight assembly is a direct-fit exterior lighting replacement for the passenger side of select Mercury Grand Marquis models. It is built for 2003-2004 Mercury Grand Marquis right-side applications with composite construction and bright lens styling, and it is specified without bulbs or sockets.

Key Features

• Depo Part Number: K31-1188R-UC
• Headlight assembly for the right side
• Compatible with 2003-2004 Mercury Grand Marquis, front right
• Composite housing construction
• Bright lens finish
• Specified without bulbs or sockets

Product Details

Depo K31-1188R-UC is an exterior lighting replacement designed for Mercury Grand Marquis vehicles built for the 2003 and 2004 model years. This right headlight assembly matches the listed fitment for front passenger-side use and references FO2503187C for cross-checking the application. The unit is intended for vehicles noted as “to 8-7-03,” so build date verification is important before ordering. Depo K31-1188R-UC provides a practical replacement option when restoring forward lighting on a Mercury Grand Marquis.

Common Issues This Part Can Address

• Cracked or damaged passenger-side headlamp housing
• Clouded or worn headlight lens on the right side
• Loss of proper forward lighting output
• Water intrusion from a compromised headlight assembly
• Mismatch after collision repair on the front right corner

Installation Notes and Tips

Fits 2003-2004 Mercury Grand Marquis, right. Confirm the vehicle build date, since the listed application applies to vehicles built to 8-7-03. Verify bulb and socket requirements separately, as this assembly is specified without bulbs or sockets. Compare the existing lamp to the OE reference and connector layout before installation.

Quality Assurance

Depo manufactures replacement lighting components for direct-fit automotive applications. This part cross-references FO2503187C for the same application.