By Hayward Pool Products



Model # SP4020NS

Warranty 1 Year

Alternate Part #'s HAYSP4020, SP4020

Product Description


  • Voltage = 115/208-230
  • Pipe Size = 2/2.5


  • In-ground pools of all types and sizes (including in-floor cleaning systems, solar heating systems, water features)
  • In-ground spas or in-ground pool/spa combinations
  • Fountains
  • Rugged, one piece strainer housing molded of corrosion-proof PermaGlass XL ™ for extra durability and long life
  • Exclusive balance of quiet operation and superior flow characteristics to meet the demanding needs of in-floor cleaning systems and solar applications
  • Exclusive, high performance NorthStar motor design for quieter, cooler and more energy efficient operation
  • Includes exclusive CPVC union connections which reduces installation time
  • Massive 220 cubic inch basket for ease of maintenance
  • Unions included in 2" socket, 2 1/2" slip
  • High profile motor mounting base
  • Self-priming (suction lift up to 8’ above water level)  
Performance Data:

  NorthStar Performance Data Flow at Total Head
Model No. Full Rated 40 ft. 50 ft. 60 ft. 70 ft. 80 ft. 90 ft.
SP4005NS 63 51 40 20 --- ---
SP4007NS 80 70 56 37 --- ---
SP4010NS 108 95 82 66 43 ---
SP4015NS 131 119 105 88 69 35
SP4020NS 157 142 125 106 84 55
SP4030NS 206 188 171 154 135 112
Motor Performance / Amp Draw - Standard Pump Vs. Energy Efficient:
Model No. HP Voltage Motor Type Amp Draw @ 115V Amp Draw @ 230V Service Factor
SP4005NS 1/2 115/230 Energy Efficient 11.0 5.5 2.78
SP4007NS 3/4 115/230 Energy Efficient 11.0 5.5 1.85
SP4007X10NS 1 115/230 Standard 11.0 5.5 1.40
SP4010NS 1 115/230 Energy Efficient 15.6 7.8 1.85
SP4010X15NS 1 1/2 115/230 Standard 15.6 7.8 1.25
SP4015NS 1 1/2 115/230 Energy Efficient 20.4 10.2 1.60
SP4015X20NS 2 115/230 Standard 20.4 10.2 1.20
SP4020NS 2 230 Energy Efficient -- 11.8 1.35
SP4020X25NS 2 1/2 230 Standard -- 11.8 1.10
SP4025X30NS 3 230 Standard -- 14.5 1.2
SP4030NS 3 230 Standard -- 19.0 1.6
Motor Performance / Amp Draw - Dual Speed Pumps:
Model No. High HP Low HP Voltage Amp Draw @ HI HP Amp Draw @ LO HP Service Factor
SP4010X152NS 1 1/2 1/5 230 8.0 3.2 1.25
SP4015X202NS 2 1/4 230 10.3 3.5 1.20
SP4020X252NS 2 1/2 1/3 230 12.0 4.2 1.10

Miscellaneous Notes
1 Year Warranty

Overall Dimensions

Click here for more Hayward Pool Pumps

Product Specifications

2 HP
115/208 - 230 V
Pipe Size:
2" / 2.5 in.

?     Asked on 3/27/2019by Inyo Visitor

What is the direct replacement for Hayward Northstar 2 hp pump?

A  Answered on 3/28/2019 by InyoPools Product Specialist Michelle B.

Hello, Can you please provide a picture of the motor label?

?     Asked on 1/23/2017by Ken

Followup to question answered on 1/16/2017 by Andy O Is there a 2.5 hp whisperflow that will get me closer to the mark?

A  Answered on 1/24/2017 by InyoPools Product Specialist Andy O.

Hello ken- No there is not, the WFE-8 Pentair Whisperflo Energy Efficient 2 HP Full Rate has a total HP of 2.6. Really your only options when it comes to the whisperflo pumps are the WFE-12 and WFE-8 as I previously mentioned. You could go with a Hayward TriStar 2 HP, Energy Efficient, Full Rated Pump - SP3220EE.

?     Asked on 1/14/2017by Ken

I have a 2hp Hayward Pool pump model # SP4020NS and want to buy a Wisperflow. What model, HP GPM Whisperflow would you recommend. Thank you very much

A  Answered on 1/16/2017 by InyoPools Product Specialist Andy O.

Hello Ken- Based off your current model pump at 40 feet of head, you are pushing about 157 gallons per minute (GPM). If you decide to go with the whisperflo you will be in between two models. The Pentair Whisperflo Energy Efficient 2 HP Full Rate - WFE-8 will deliver about 140 gpm and the Pentair Whisperflo Energy Efficient 3 HP Full Rate - WFE-12 will deliver 170-180 gpm.

?     Asked on 2/9/2016by Brandon

I have a Hayward Northstar pool pump (1998-2007) with a single speed, 2 HP motor (SPX1620Z1BNS). What is the recommended replacement pump (housing, motor, etc.) for this discontinued pump? Please include a list of any connector and other items that will be needed to attach the new pump where the old pump was set up.

A  Answered on 2/9/2016 by InyoPools Product Specialist Megan C.

I would best suggest reviewing the Hayward Tri-Star or The EcoStar Variable Speed pumps click here to view.  The GPM on The TriStar is slightly different than the NorthStar. When choosing the TriStar by Horsepower, you will need to to refer to your Filter's suggested Flow Design Rate. If you already have a 2hp NorthStar you would want to review the Hayward TriStar 2 HP, Full Rated Pump PART#SP3220EE click here to view. Or the Hayward TriStar 1-1/2 HP, Full Rated Pump PART#SP3215EE click here to view.  Higher Flow rates can allow for stepping down in pump horsepower compared to less efficient pump models. The pumps include a 2"x2- 1/2" union connector kit. The EcoStar is your most energy efficient option, controlling pump output gallons per minute by adjusting the RPM on the integrated controller.

?     Asked on 7/13/2015by Inyo Visitor

what pump is available to replace the Northstar IS4007-04? Thanks for your help.

A  Answered on 7/14/2015 by InyoPools Product Specialist Joe S.

Hello the  SP3220EE Hayward TriStar 2 HP, Energy Efficient, Full Rated Pump will be the replacement of the NorthStar

?     Asked on 1/18/2012by Guest

I have a Hayward NorthStar that I am looking to replace. The only one's I see all have a threaded union connection. Do you still carry the one with the Quad lock?

A  Answered on 1/18/2012 by InyoPools Product Specialist Patrick P.

Unfortunately Hayward discontinued the Quad Lock design on the NorthStar pump models in 2007. The housing on the newer pumps is a threaded design and re-plumbing would be necessary. 


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 (Average 4.67  out of 5 stars)
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