• Highlight: This Ametek 11645550 is a 5.7-inch single-stage thru-flow motor rated 120V — a lighter-duty, lower-cost configuration found in residential-grade and light-commercial canister vacuums.
• Best For: light-commercial and high-end residential vacuum repair, central vacuum systems with modest run-time requirements, and budget-conscious facility teams.
• Expert Note: Single-stage motors trade peak suction for cost and a cooler-running profile. Thru-flow design keeps the motor compact but means filtration must stay intact to protect the windings. Confirm the original spec was single-stage before ordering — many models use two-stage equivalents.
*Independent analysis of 500+ marketplace data points.