Wear Item Belt Tensioner Pulley Compatible with Bobcat T140–T590
6735884 Belt Tensioner Pulley Assembly — fits Bobcat T140, T180, T190, T550 and T590 compact track loaders. Heat-treated SAE 1045 steel body with dual-lip nitrile seals and ±0.05 mm shaft bore tolerance for stable belt tracking under continuous duty. Replace at scheduled service intervals or when belt flutter, squeal or erratic coolant temperature signals bearing wear — swapping the full pulley assembly rather than the bearing alone restores correct tension and protects the fan and alternator from cascading damage. Supplied with a recommended replacement interval sheet matched to your fleet maintenance schedule.