OTTO Excavator Parts Zx330-3 6Hk1Tt Eccentric Shaft Tooth 8976019460 897601-9460 8-97601946-0 For Isuzu Heavy-duty eccentric shaft gear for ZX330-3 excavators with Isuzu 6HK1TT engines. Engineered for durability to maintain critical timing under continuous load, minimizing downtime.