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US Motors AST165 Replacement

The US Motors AST165 is a C-flange threaded standard-efficiency pool pump motor (48-frame). Nidec publishes direct replacement crosses for it — details below.

Documented equivalents

Crossed modelCross-reference source
Century ST1102 / UST1152Nidec US Motors Replacement Cross Reference (manufacturer)
Century B128 / B229SENidec US Motors Replacement Cross Reference (manufacturer)
A.O. Smith HST150Nidec US Motors Replacement Cross Reference (manufacturer)
WEG 14542 / 54024Nidec US Motors Replacement Cross Reference (manufacturer)
Note: Match THP, frame, and flange type to your nameplate. Send us a nameplate photo and we confirm the match before quoting.

Need a US Motors AST165?

Send the catalog number off your failed pump motor. We'll confirm the match and quote the AST165 or a verified equivalent with availability and lead time.

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