Genuine OEM Volkswagen Protective Sleeve, part number 3D2819345B. This protective sleeve is a small component designed to shield or insulate a specific area within the heating and A/C system. It is located in the engine bay, likely on a hose or pipe. Made from durable rubber material with dimensions of approximately 44mm x 30mm x 10mm. Genuine OEM parts ensure precise fit and long-lasting performance, maintaining the integrity of the cooling system.