Response to Hello Jamie. The Magnetek Century 1.5 HP Up Rate Motor model B2854 is comparable to your motor 177475-20. It is recommended that the motor shaft seal, seal plate o-ring, and diffuser o-ring be replaced at the same time. The GOKIT78 contains the recommended parts to complete this project. Tune Up Kit Pentair SuperFlo/Sta-Rite SuperMax - GOKIT78
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