Mercedes Headlight Seal - Genuine Mercedes 221826045864

Product Information

Mercedes-Benz Exterior Lighting diagram for S400, S63 AMG, S600, S550, S65 AMG, & more

The headlight seal is a protective gasket or sealing strip designed to create a tight barrier between the headlight housing and lens or vehicle body. Its primary function is to keep out moisture, dust, and debris, preserving headlight clarity and preventing electrical damage. Typically made from durable rubber or foam material, the headlight seal also helps reduce vibration and ensures a long-lasting, weatherproof fit for the lighting assembly.

• Moisture or condensation inside the headlight – caused by a compromised seal.
• Visible cracks, hardening, or deformation of the seal – reduces its ability to protect the headlight.
• Dust or dirt buildup within the headlight lens – indicates loss of sealing integrity.

About Genuine Mercedes

The original parts used by Mercedes Benz to build your car are available as replacement parts under the “Genuine Mercedes Benz” brand. Manufactured under the direction of Mercedes Benz, expect excellent quality and a premium price since these parts are exclusively available through the Mercedes Benz Dealership network.

You may not realize this, but the parts that make up your Mercedes-Benz are not necessarily manufactured by Mercedes-Benz. No cause for concern, as Mercedes-Benz designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for Mercedes-Benz for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine Mercedes-Benz parts box and find an OEM branded part inside, simply with the addition of a Mercedes-Benz logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.