OEM‑compatible Spacer Sleeve (3128078409) for Boomer M2D, Boomer XE3C, Simba S7D, Boomer L2D, Boomer M2C, ROC-D7, and ROC-D9 underground mining and drilling equipment. Made from steel, this aftermarket spare part is part of the feed and boom system, ensuring stable and reliable operation in demanding underground applications. Its durable construction extends service life and enhances equipment performance.