50:1 Pivot Irrigation Gearbox – External Chamber Heavy Duty Drive50: 1 Pivot Irrigation Gearbox External Chamber Heavy Duty Drive Reliable Drive Solution for Center Pivot Irration Systems The 50: 1 external chamber gearbox is engineered for durability, torque performance, and long service life in center pivot irrigation systems. Designed as a direct replacement gearbox, it delivers dependable operation across a wide range of agricultural irrigation applications. Built for Heavy Duty Irrigation Performance This