HomeElectrical, Lighting and Body > Lighting - ExteriorDepo K31-1188R-UC Headlight Assembly - Right
Part #: K31-1188R-UC

Depo K31-1188R-UC Headlight Assembly - Right

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⚙️ 2 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mercury, Grand Marquis
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Reliable Headlight Assembly for Mercury Grand Marquis

The Depo K31-1188R-UC headlight assembly is designed specifically for Mercury Grand Marquis models, providing a direct replacement for your vehicle's exterior lighting needs. This headlight assembly ensures proper fitment and restores your vehicle's original lighting performance.

Key Features of Depo K31-1188R-UC Headlight Assembly

  • Compatible with Mercury Grand Marquis models
  • Direct replacement headlight assembly for easy installation
  • Durable construction designed for exterior lighting use
  • Restores proper lighting alignment and visibility
  • Part number K31-1188R-UC ensures exact fitment

Detailed Description of the Headlight Assembly

This Depo headlight assembly, part number K31-1188R-UC, is engineered to meet the specifications of Mercury Grand Marquis vehicles. It replaces the original exterior headlight unit, maintaining the vehicle's factory lighting performance. The assembly is built to withstand typical road conditions and environmental factors, ensuring consistent illumination and safety. Its design allows for a straightforward replacement process without modifications, preserving the vehicle's structural integrity and appearance.

Common Issues Addressed by This Headlight Assembly

  • Damaged or cracked headlight lens affecting visibility
  • Malfunctioning or dim headlights reducing nighttime safety
  • Water or moisture intrusion causing electrical issues
  • Faded or yellowed headlight housing impairing light output
  • Non-functional or broken headlight assembly after collision

Installation Notes and Tips

When installing the Depo K31-1188R-UC headlight assembly on a Mercury Grand Marquis, ensure the vehicle is turned off and the battery is disconnected to prevent electrical hazards. Remove the existing headlight assembly carefully to avoid damage to mounting points. Align the new assembly properly before securing it to maintain correct beam pattern and avoid misalignment. Verify all electrical connections are secure and test the headlights before completing the installation.

Quality Assurance and Warranty Information

Depo manufactures this headlight assembly to meet industry standards for fit and function. While specific warranty details are not provided, Depo products typically undergo quality checks to ensure durability and performance. Using the K31-1188R-UC part number guarantees compatibility with Mercury Grand Marquis models, supporting reliable operation and safety.

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2004MercuryGrand MarquisRightTo 8-7-03; w/o bulbs or sockets; bright; Composite; FO2503187C; To 8-7-03; w/o bulbs or sockets; bright; Composite; To 8-7-03; w/o bulb
2003MercuryGrand MarquisRightTo 8-7-03; w/o bulbs or sockets; bright; Composite; FO2503187C; To 8-7-03; w/o bulbs or sockets; bright; Composite; To 8-7-03; w/o bulb

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.