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Depo K31-1188L-AS Headlight Assembly - LeftOE Quality 60-Day Returns
Part #: K31-1188L-AS

Depo K31-1188L-AS Headlight Assembly - Left

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⚙️ 2 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$82.84Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
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🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mercury, Grand Marquis
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Overview of Depo Headlight Assembly for Mercury Grand Marquis

The Depo K31-1188L-AS headlight assembly is designed specifically for Mercury Grand Marquis models, providing reliable exterior lighting performance. This direct replacement part ensures proper fitment and restores your vehicle's original lighting functionality.

  • Compatible with Mercury Grand Marquis vehicles
  • Direct replacement headlight assembly for easy installation
  • Durable construction for long-lasting use
  • Includes all necessary mounting points for secure fit
  • Part number K31-1188L-AS for precise identification

Detailed Product Description

This Depo headlight assembly (part number K31-1188L-AS) is engineered to meet the exact specifications of the Mercury Grand Marquis. It replaces the exterior lighting component to maintain proper illumination and vehicle safety. The assembly is manufactured with quality materials to withstand road conditions and environmental factors. Designed as a direct fit, it aligns with factory mounting points, ensuring a seamless installation without modifications.

Common Applications and Issues Addressed

  • Restores headlight functionality after damage or wear
  • Replaces cracked or fogged headlight lenses
  • Improves nighttime visibility and road safety
  • Corrects misaligned or non-functioning headlights
  • Maintains vehicle appearance with OEM-style fitment

Installation Notes and Tips

  • Compatible with Mercury Grand Marquis models; verify vehicle year for exact fit
  • Installation requires basic hand tools and moderate mechanical skill
  • Disconnect battery before installation to prevent electrical issues
  • Align assembly carefully to ensure proper beam pattern and secure mounting
  • Consult vehicle service manual for detailed installation procedures

Quality Assurance and Warranty

Depo manufactures this headlight assembly to meet industry standards for durability and performance. While specific warranty details are not provided, Depo products typically come with a limited warranty against manufacturing defects. Using the correct part number K31-1188L-AS ensures compatibility and quality consistent with original equipment.

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2004MercuryGrand MarquisLeftTo 8-7-03; w/o bulbs or sockets; bright; Composite; FO2502187; To 8-7-03; w/o bulbs or sockets; bright; Composite; To 8-7-03; w/o bulb
2003MercuryGrand MarquisLeftTo 8-7-03; w/o bulbs or sockets; bright; Composite; FO2502187; 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.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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