Description
The Mercedes-Benz A1728204261 is an OEM left-side front halogen headlight assembly designed for compatible Mercedes-Benz SLK R172 models.
This headlamp is positioned on the left/driver side and is designed to provide factory-style lighting, mounting, and appearance. Catalog listings identify the application with the SLK250 and SLK350 R172, with model years around 2010–2016.
The exact lighting specification should be checked before purchase because the R172 was also available with Xenon/Bi-Xenon headlight systems. The complete part number and vehicle VIN should therefore be matched to ensure correct fitment.
Part Number: A1728204261
OE Number: 1728204261
Part Type: Front Headlight / Headlamp Assembly
Position: Left / Driver Side
Lighting: Halogen
Vehicle: Mercedes-Benz SLK R172
Brand: Mercedes-Benz
Quality: Genuine
Vehicle Compatibility
Potential applications include:
- Mercedes-Benz SLK 250 R172
- Mercedes-Benz SLK 350 R172
- Selected SLK R172 models from approximately 2010–2016
Catalog listings specifically identify A1728204261 with SLK250/SLK350 R172 applications and a left/driver-side halogen configuration.
Important: R172 vehicles can have different halogen and Bi-Xenon headlight assemblies. Confirm the original part number, headlight technology, and VIN before ordering.

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