Belt Tensioner 851015435

This is a belt tensioner mechanism (or tensioner assembly) used in the engine cooling and accessory drive systems of Dressta heavy equipment, such as the TD-25M crawler dozer and the 560E series.

Key Specification

Average Weight: ~ 2.5 kg

Compatibility: SB-85R EXTRA ; TD-25R ; SB-85M EXTRA ; TD-25R EXTRA ; TD-25M

SL: 3C

Key Information

The belt tensioner is a critical maintenance item. Its purpose is to compensate for the natural stretching of drive belts over time and to absorb the vibrations and fluctuations in speed generated by the engine. By maintaining proper tension, it prevents belt slip, which can lead to overheating (if the water pump is driven by the belt) or electrical issues (if the alternator is under-driven).