Nidec/US Motors 2.5 HP [11.0A] [56Y/TB] Spa Motor (TT504)

Type:	Pump Motors
Mfg	Nidec/US Motors
Mfg Part #	TT504
Replaces:	5238-136, 623439, EMR-101-2825
Works With:	Spa Motor
Phase:	Not Listed
Horsepower:	2.5 HP (2.5 THP)
Frame:	56Y Frame - Thru-Bolt
Speed:	2-Speed
Voltage:	230V
Amperage:	11.0A/3.8A
Mount:	Threaded

COMPARE AT $743.62

OUR PRICE $571.80

STOCK STATUS IN STOCK Ships Usually The Same/Next Business Day

Quantity

✓ $9.88 Standard Shipping
Under 25 lbs. Contiguous USA ✓ Secure Checkout
Safe & secure ✓ Expert Parts Support
We’re here to help

Helpful Pump Motor Articles

Recommended Before Purchase

How To Match A Spa Pump By HP, Voltage, Amps & Plumbing Size

Replacing a spa pump is not as simple as matching the horsepower printed on the label. Horsepower ratings are not always measured or presented cons...

Read Article

How to Measure a Plumbing Union To Ensure You Buy The Right Replacement Part

Plumbing unions are small parts, but they are extremely important in hot tubs, spas, jetted tubs, and pool equipment. A un...

Read Article

Why Is My Spa Pump Humming But Not Running?

A spa pump that hums but will not run is a common hot tub problem. You may hear the motor trying to start, but the pump do...

Read Article

Why Is Water Leaking From Under My Hot Tub Pump?

Finding water under your hot tub pump can be stressful. The pump is one of the most important parts of the spa, and any le...

Read Article

SHARE & GET $10 FOR EVERY FRIEND WHO JOINS US & MAKES A PURCHASE!

TAGS: pumpmotors, usmotors

Details

Nidec and US Motors spa motors are a dependable replacement solution for compatible high-output spa pump systems, and this 2.5 HP model uses the TT504 reference with an 11.0 amp draw and 56Y threaded-bolt configuration. The Nidec US Motors motor line is especially valuable when a repair depends on exact frame matching and proven replacement quality.

This motor has practical value because the 56Y/TB configuration is a key installation detail that affects whether the motor will align correctly with the existing pump assembly. Matching the right horsepower, amperage, and frame layout helps preserve original fit and contributes to a smoother, more accurate service process.

This type of motor is especially useful when the motor has failed but the wet end remains serviceable and still worth keeping in operation. That helps make a motor-only replacement a more focused and practical repair choice.

Installed in the proper application, this Nidec US Motors spa motor helps support dependable operation, accurate fitment, and stronger long-term serviceability.

2.5 HP spa motor in the proven Nidec US Motors replacement line
Rated at 11.0 amps with a 56Y threaded-bolt configuration
Helps restore dependable motor performance in compatible spa systems
Useful when replacing a failed original motor while retaining the wet end
Improves fit confidence and replacement accuracy

Nidec / U.S. Motors – Pool Pump Motors, Electric Motors and Replacement Motor Parts

Who is Nidec / U.S. Motors?

Nidec / U.S. Motors is a leading manufacturer of electric motors and drive systems, part of the global Nidec Corporation. With over a century of engineering expertise, U.S. Motors has become a trusted name in high-performance motor solutions used across HVAC, industrial, and pool and spa applications. Their motors are widely recognized for reliability, efficiency, and long service life.

What products does Nidec / U.S. Motors specialize in?

Nidec / U.S. Motors specializes in electric motors including pool pump motors, variable speed motors, single-speed motors, and replacement motor components. Their product lineup includes motors designed to power pumps, filtration systems, and water features, ensuring proper water circulation and system performance.

Why choose Nidec / U.S. Motors parts for your pool or spa?

Nidec / U.S. Motors products are known for durability, energy efficiency, and consistent performance. Their motors are engineered to operate in demanding environments, handling continuous use, high humidity, and temperature fluctuations. Pool professionals and homeowners choose Nidec for dependable motor replacements that improve efficiency and extend equipment life.

How do you identify and choose the correct Nidec / U.S. Motors part?

To select the correct motor, it’s important to match specifications such as horsepower (HP), service factor (SF), voltage, frame size, RPM, and shaft type. Verifying model numbers and compatibility with your existing pump ensures proper fit and operation. Choosing the right motor helps maintain efficient performance and prevents system damage.

Need help finding the right Nidec / U.S. Motors part?

At Bath & Spa Parts Online, we carry a wide selection of Nidec / U.S. Motors pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.