OTTO Excavator Spare Parts Zx200-3 4Hk1 Generator Adjusting Arm 8973628450 897362-8450 8-97362845-0 For Isuzu A heavy-duty, OEM-compliant component engineered for industrial reliability, this OTTO Generator Adjusting Arm is specifically tailored to fit Isuzu 4HK1 engines and seamlessly integrate with Hitachi ZX200-3 excavators. Featuring three interchangeable part numbers—8973628450, 897362-8450, and 8-97362845-0—it adheres to strict quality standards, ensuring consistent performance and structural durability in the most demanding construction, mining, and infrastructure environments.