3711621-1V Waterway 4.0 HP 1-Speed Spa Pump 230V 12.0A, Waterway Viper Side Discharge, 56 Frame, 3.6" O.D. Fittings New Version Replaced Obsolete Original

Waterway Viper 4.0 HP 1-Speed Spa Pump (56 Frame, 230V, 3.6" x 3.6")

Another version replaced the obsolete 3711621-1V hot tub pump. It uses a Waterway Viper wet end and a 56 frame motor, the best current matchup for your spa's plumbing setup.

Ships as the new version: the original 3711621-1V pump has been discontinued, so this order ships its current replacement.

Key Specifications

• Horsepower: 4.0 HP
• Speed: 1-Speed
• Voltage: 230V
• Amperage: 12.0 Amps
• Frame Size: 56 Frame
• Plumbing Connections: 3.6" O.D. Intake / 3.6" O.D. Discharge (measured across the openings - edge to edge)
• Wet End: Waterway Viper

Compatibility & Cross-Reference

• Current Version Replacement For: Obsolete Waterway model 3711621-1V
• Fitment Note: This pump has 3.6" O.D. intake and 3.6" O.D. discharge connections. Always measure your existing fittings before ordering.

Frequently Asked Questions (FAQ)

Is the 3711621-1V spa pump obsolete?
Yes. The original 3711621-1V model is discontinued. This 4.0 HP 1-speed 56 frame pump with 3.6" 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 3711621-1V.

What are the plumbing connection sizes for this pump?
This pump uses 3.6" 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.