Mercedes-Benz Genuine Drive Belt Tensioner (Part Number: 1772003400):

Functionality: The drive belt tensioner is a critical component of the vehicle’s accessory drive system. Its primary function is to maintain the proper tension of the drive belt, ensuring that it stays in contact with the various pulleys that drive engine components such as the alternator, power steering pump, and air conditioning compressor.

Genuine Mercedes-Benz Part: As a Genuine Mercedes-Benz part, the tensioner with part number 1772003400 is produced to meet the manufacturer’s specifications and quality standards. Genuine parts are designed to ensure proper fitment and performance in Mercedes-Benz vehicles.

Compatibility: The part number 1772003400 is specific to Mercedes-Benz and is intended for use on certain models. It’s crucial to confirm compatibility with your specific Mercedes-Benz model and year to ensure proper fitment.

Installation: Replacement of the drive belt tensioner may require some mechanical skill and knowledge of the vehicle’s accessory drive system. Professional installation is recommended if you’re not experienced with belt tensioner replacement.

Maintenance: The tensioner is subject to wear over time, and its performance can impact the overall efficiency of the accessory drive system. Regular inspection and replacement as needed are part of routine maintenance.