K55JXPSZ-1646 US Motors 1.0 HP SPL 1-Speed Spa Pump 115V 9.5A, Waterway E-Series Center Discharge Center Discharge, 48Y Frame, 2.5" O.D. Fittings New Version Replaced Obsolete Original

Waterway E-Series Center Discharge 1.0 HP SPL 1-Speed Spa Pump (48Y Frame, 115V, 2.5" x 2.5")

Another version replaced the obsolete K55JXPSZ-1646 hot tub pump. It uses a Waterway E-Series Center Discharge wet end and a 48Y frame motor, the best current matchup for your spa's plumbing setup.

Key Specifications

• Horsepower: 1.0 HP SPL
• Speed: 1-Speed (3450 RPM)
• Voltage: 115V
• Amperage: 9.5 Amps
• Frame Size: 48Y Frame
• Plumbing Connections: 2.5" O.D. Intake / 2.5" O.D. Discharge (measured across the openings - edge to edge)
• Wet End: Waterway E-Series Center Discharge

Compatibility & Cross-Reference

• Current Version Replacement For: Obsolete US Motors model K55JXPSZ-1646
• Fitment Note: This pump has 2.5" O.D. intake and 2.5" O.D. discharge connections. Always measure your existing fittings before ordering.

Frequently Asked Questions (FAQ)

Is the K55JXPSZ-1646 spa pump obsolete?
Yes. The original K55JXPSZ-1646 model is discontinued. This 1.0 HP SPL 1-speed 48Y frame pump with 2.5" O.D. fittings is the current version replacement.

Where is the part number located on my hot tub pump?
It is printed on the specification label on the side of the motor. Look at the line marked MODEL to confirm it matches K55JXPSZ-1646.

What are the plumbing connection sizes for this pump?
This pump uses 2.5" O.D. (outside diameter) fittings for both the intake and the discharge. When measuring your old pump, measure across the openings - edge to edge.

Questions or not sure it fits? Call 858-210-8062 or text photos of your old pump and motor label to 858-215-4460.