Mercedes A4572004170 Belt Tensioner - 4572004170
Belt TensionerBelt Tensioner (Mercedes A4572004170) — original and OEM-certified diesel engine spare parts for long-haul trucks and diesel power units. Global delivery. Backed by a 1-year warranty.
Mercedes A4572004170 / 4572004170 Belt Tensioner provides reliable accessory belt tension in Mercedes diesel engines for heavy commercial vehicles and engines. OEM-matched tensioner spring force and pivot geometry prevent belt slip and maintain correct alternator, water pump, and ancillary component drive under sustained heavy transport loads. Ships with a 1-year warranty.
