By Waterway
Part # 372082113
Dimensions 15.5" L x 8" W x 8.5" D
Waterway Executive 56 Spa Pump – 2.0 HP, 230V, 2-Speed, 2.5"S x 2"D (3720821-13)
High-Performance OEM Spa Pump – California Title 20 Compliant
✅ Features & Benefits
✅ Executive Wet End – Designed specifically for 56-frame motors for superior performance
✅ Large 6-1/2" Diameter Wet End – Provides higher head pressure and improved flow
✅ Dual-Speed Efficiency – High speed for jet power, low speed for quiet circulation and energy savings
✅ Durable Motor – Insulated windings, split capacitor design, and cooler operating temperatures extend motor life
✅ Quiet Operation – Two double-shielded ball bearings with moisture-resistant grease reduce noise and wear
✅ Flexible Installation – Rotatable wet end allows multiple plumbing configurations
➡️ Specifications
Manufacturer Part #: 3720821-13
Horsepower: 2.0 HP (rated by amperage – always verify amps, not HP)
Voltage: 230V
Amps: Match existing system for best fit (more accurate than HP label)
Speed: 2-Speed (High/Low)
Frame: 56 Frame
Connections: 2.5" Suction x 2" Discharge
Dimensions (H x W x L): 9.08" x 8.05" x 14.775"
Compliance: California Title 20 Compliant
✅ Applications
Hot tubs and spas requiring high head pressure and reliable dual-speed performance
OEM replacement for Waterway Executive 56 pumps
⚠️ Tech Tips & Cautions
⚠️ Always match by amperage, not horsepower – HP labels often misrepresent actual motor power
⚠️ Replace shaft seal during installation to prevent leaks (sold separately)
⚠️ Verify plumbing size (2.5" suction / 2" discharge) before ordering
⚠️ Professional installation recommended for wiring and plumbing connections
| Manufacturer | Waterway |
| Pump Model | Executive |
| Speed | 2 Speed (2-Spd) |
| Motor Voltage | 230v |
| Drain Plug Location | 3,6,9 o`clock |
| Suction Style | Center |
| Suction Connection Type | Male Buttress Thread (mbt) |
| Suction Pipe Size | 2-1/2" |
| Discharge Style | Side |
| Discharge Connection Type | Male Buttress Thread (mbt) |
| Discharge Pipe Size | 2" |
| Horsepower | 2.0hp |
| Motor Frame | 56 Frame Thru-Bolt |
| Motor Amperage/Wattage | 8.0A/3.0A |
Waterway, a leader in spa, bath, and pool products, provides the reliable Executive 56 pump for a great value. Executive 56 spa pumps are energy efficient and produce clear-cut performance. The wet end of each pump has the ability to rotate, offering an easy, no hassle installation.Specifications
I need the wiring order, this pump has the numbers 1, 2, 3 or 4 and the other pump in my spa has H, C, and L. So I guess my question is, what wire goes on 1, 2, 3. Is 1 high, 2 common and 3 low.
Reply
Hi, Cindy. Terminal 1 is C, Terminal 2 is H and Terminal 3 is L.
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Is this pump comparable to the Balboa Ultamax 1016204
Reply
No this is not the pump we would suggest. You will need this Balboa Ultamax 1016204 which we do have in stock ready to ship!
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Need a 2 hp pump with 1.5 inch intake and discharge. Do you sell one like that?
Reply
Hello, could you send us a few photos of your pump and motor? Please take a close up shot of the motor label as well as a wide shot of the complete pump to include the pipes going in and out of the pump. To supply photos simply click the reply link below and upload your photos. Once we get those photos we can make the proper recommendation.
Reply
I have a Century 2 speed pump currently 7-193675-01. Can this pump replace that?
Hi William, for us to suggest the proper seal kit and or pump could you send a photo of a wide shot of your complete pool pump to show the pipes going in and out of the pump? To supply this photo simply click the reply link below and upload your photo. Once we get this photo we can make the proper recommendations.
Reply
Will this replace a pump #7-193675-01 pump? Ours is a frame 56, HTZ 60, 3450/1725 rpm, 230 volts, 8.8/3.0 volt
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Hi Doreen, could you send us a few photos of your pump? Please take a close up shot of the pump label as well as a wide shot of the complete pump to include the pipes going in and out of the pump. To supply photos simply click the reply link below and upload your photos. Once we get those photos we can make the proper recommendation.
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