This structural part is a mechanical component compatible with OEM part number 3115503581 and is used in the drilling rig structure of underground mining equipment. Manufactured from high-strength steel, it provides reliable load-bearing capacity, precise fitment, and long service life under demanding working conditions. The component is suitable for machines including M2D, T1D, Boomer XE3C, Boomer 291, Boomer 281, Boomer L2D, Boomer S2, BOOMER-M2C, and S1D / S2 series rigs.