• Highlight: This Ametek 116471 is a 5.7-inch two-stage bypass motor with peripheral discharge and ball bearings, rated for 120V North American commercial service — the standard heavy-duty configuration for canister and central vacuum platforms.
• Best For: US commercial vacuum repair shops, facility maintenance teams, central vacuum installers, and equipment rebuilders sourcing the most common Ametek replacement size.
• Expert Note: This is the most widely cross-referenced Ametek motor configuration in the US market — bypass + peripheral + ball bearing + 120V — so the 116471 part number appears in service catalogs across many commercial brands. Verify your existing motor's exact spec label before swapping.