HomeElectrical, Lighting and Body > Lighting - ExteriorTYC 18-6258-00-9 Side Marker Light Assembly - Front Left
Part #: 18-6258-00-9

TYC 18-6258-00-9 Side Marker Light Assembly - Front Left

CAPA Certified, Front Left
⚙️ 6 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
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*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
📦CAPA Certified, Front Left
🚗Fitment: Buick, Encore GX
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of TYC CAPA Certified Side Marker Light Assembly

The TYC CAPA Certified Side Marker Light Assembly 18-6258-00-9 is designed specifically for the front left position of Buick Encore GX models. This complete assembly includes an amber lens and LED bulb, providing reliable exterior lighting that meets CAPA standards for quality and fitment.

  • Complete side marker light assembly with LED bulb included
  • Amber lens made from durable PMA plastic
  • Housing constructed from impact-resistant PC plastic
  • Snap-in attachment method for straightforward installation
  • Designed for front left side of Buick Encore GX
  • Part number 18-6258-00-9 ensures precise fit

Detailed Product Description

This TYC side marker light assembly is engineered to replace the front left side marker on Buick Encore GX vehicles. The amber lens is crafted from PMA plastic, known for its clarity and resistance to weathering, while the housing uses PC plastic to provide structural strength and durability. The included LED bulb offers improved energy efficiency and longer service life compared to traditional bulbs. The snap-in attachment method allows for a secure fit without the need for additional hardware, streamlining the replacement process. This assembly is part of the CAPA Certified line, which guarantees compliance with the Certified Automotive Parts Association standards, ensuring that the part meets or exceeds OEM specifications for fit, form, and function.

Applications and Common Issues Addressed

  • Replacement for damaged or cracked front left side marker light on Buick Encore GX
  • Upgrading from incandescent to LED lighting for improved visibility
  • Restoring proper exterior lighting to meet vehicle safety requirements
  • Fixing non-functional or burnt-out side marker bulbs
  • Addressing moisture or lens discoloration issues in the side marker assembly

Installation Notes and Tips

The TYC 18-6258-00-9 side marker light assembly uses a snap-in attachment method, allowing for a straightforward installation without the need for additional hardware. Ensure the vehicle is turned off and the area around the side marker is clean before installation. Gently press the assembly into place until it securely snaps in. Verify the LED bulb is functioning properly before completing the installation.

Quality Assurance and Warranty

As part of the CAPA Certified product line, this side marker light assembly undergoes rigorous testing to meet Certified Automotive Parts Association standards. This certification ensures the part matches OEM quality in fit, form, and function. While specific warranty details are not provided, CAPA Certified parts typically come with manufacturer-backed warranties to support product reliability and customer confidence.

BrandTYC
Part Number18-6258-00-9
PositionCAPA Certified, Front Left
Bulbs IncludedYes
Lens ColorAmber
Bulb TypeLed
Lens MaterialPma plastic
Housing MaterialPc plastic
Attachment MethodSnap in
Components IncludedComplete assembly
Front Side Marker Light Bulb IncludedYes
Front Side Marker Light Bulb TypeLed
Hardware IncludedNo
Other Side18-6257-00-9
PositionFront left

This part fits 6 vehicles. Search below:

YearMakeModelSubmodelBody TypePositionNotes
2025BuickEncore GXPreferredSport UtilityFront LeftCAPA Certified
2024BuickEncore GXSport TouringSport UtilityFront LeftCAPA Certified
2023BuickEncore GXSelectSport UtilityFront LeftCAPA Certified
2022BuickEncore GXSelectSport UtilityFront LeftCAPA Certified
2021BuickEncore GXPreferredSport UtilityFront LeftCAPA Certified
2020BuickEncore GXPreferredSport UtilityFront LeftCAPA Certified

* 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:

42716025GM2550209

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