Nidec/US Motors 4.0 HP [16.4A] [56Y/TB] Spa Motor (TT506)

Nidec and US Motors spa motors are trusted for demanding replacement applications where higher output and correct physical fit are both essential, and this 4.0 HP model uses the TT506 reference with a 16.4 amp draw and 56Y threaded-bolt configuration. The Nidec US Motors line is especially useful when larger spa systems need a proven replacement motor platform instead of an uncertain alternative.

This motor has practical value because the 56Y/TB frame style is critical to installation compatibility, especially in higher-output spa pump systems where incorrect motor selection can be costly. Matching horsepower, amperage, and frame configuration helps protect the existing wet end and supports a more reliable repair outcome.

This type of motor is especially useful when a high-output spa motor has failed but the surrounding pump assembly remains structurally sound and worth retaining. That makes targeted motor replacement the more efficient and more strategic service choice.

Installed in the proper application, this Nidec US Motors spa motor helps support strong performance, accurate fitment, and better long-term service confidence.

• 4.0 HP spa motor in the proven Nidec US Motors replacement line
• Rated at 16.4 amps with a 56Y threaded-bolt configuration
• Helps restore high-output motor performance in compatible spa systems
• Useful when replacing a failed original motor while retaining the pump body
• Improves fit confidence and replacement accuracy