OEM‑compatible Pulley Wheel (3128078430) for FlexiROC D65, ROC L6, Boomer T1D, ROC L8, Boomer 291, Boomer 281, Boomer S2, Boomer 282, PowerRoc-D55, and Boomer S1D underground drilling equipment. Made from hardened steel, this aftermarket spare part is part of the rotation head assembly, ensuring smooth and reliable rotation and power transmission in demanding underground operations.