Depo K31-1188L-AS Headlight Assembly - Left

Headlight Assembly for Grand Marquis

This Depo headlight assembly is a direct-fit exterior lighting replacement for the left side of select Mercury Grand Marquis models. It is listed for 2003-2004 Mercury Grand Marquis, left, with notes for vehicles built to 8-7-03 and without bulbs or sockets.

Key Features

• Brand: Depo
• Part number: K31-1188L-AS
• Headlight assembly for the left side
• Composite construction with a bright finish
• OE reference: FO2502187
• Fits 2003-2004 Mercury Grand Marquis, left

Detailed Description

Depo K31-1188L-AS is an exterior lighting replacement built for the left headlight position on the Mercury Grand Marquis. The fitment data identifies this assembly for 2003-2004 Grand Marquis models built to 8-7-03, and it is specified without bulbs or sockets. For buyers searching for a Mercury Grand Marquis left headlight assembly, K31-1188L-AS provides the correct application details for a focused OE-style replacement.

This part cross-references OE number FO2502187 for the same application.

What It Helps Address

• Cracked or damaged left headlight housing
• Clouded or worn exterior lighting lens
• Loss of proper forward lighting on a 2003-2004 Mercury Grand Marquis
• Need for a replacement headlamp assembly after collision repair
• Incorrect or mismatched front lighting appearance

Installation Notes and Tips

Verify the vehicle build date before ordering, since this assembly is listed for Grand Marquis models built to 8-7-03. Confirm the left-side position and compare the connector and bulb/socket setup to the original unit, as this part is listed without bulbs or sockets. Test headlight aim after installation to ensure proper road illumination.

Quality Assurance

Depo lighting components are cataloged as application-specific replacement parts, and this assembly follows the listed OE reference for the correct Mercury Grand Marquis fitment.