AMETEK 2M428 Vacuum Motor

AMETEK LAMB 2M428 Vacuum Motor, part number 116325-00, is a 5.7‑inch‑diameter, 120‑V AC, 1‑stage by‑pass vacuum motor designed for commercial and industrial vacuums. The unit uses thermoset mounting brackets and is built for a peripheral, side‑mount configuration to fit a wide range of equipment that employs a 5.7" frame. At an airflow of 98 CFM, it delivers steady high‑volume air movement suitable for central vacuums, wet/dry vacuum replacements, and dust collection stages in workshops. The by‑pass design routes cooling air around the motor core, helping maintain performance under continuous operation, and its 1‑stage construction keeps the blower compact while providing reliable airflow. The 2M428 family is a common replacement in 120 V systems, and the 116325‑00 designation is the AMETEK LAMB model number associated with this specific motor. With its compact footprint and standardized frame size, this motor is suitable for retrofit projects where a direct interchange with existing 2M428 or 116325‑00 installations is desired, and it is widely recognized in catalog listings as a durable choice for demanding vacuum service.