OTTO Excavator Spare Parts Zx450 6Wg1T Generator Adjusting Arm 1136742840 113674-2840 1-13674284-0 For Isuzu A heavy-duty, OEM-standard component engineered for high-performance heavy machinery, this OTTO Generator Adjusting Arm is exclusively designed to fit Isuzu 6WG1T turbocharged engines and seamlessly integrate with Hitachi ZX450 excavators—workhorses trusted in large-scale construction, mining, and quarrying operations. Featuring three interchangeable part numbers—1136742840, 113674-2840, and 1-13674284-0—it adheres to strict Isuzu engineering specifications and industrial quality standards, ensuring exceptional structural integrity and long-lasting durability under extreme load and harsh operating conditions.