Hayward Pump Strainer Cover T-Seal | SPX4000TS

Hayward Products SKU: HPPSPX4000TS

Hayward Pump Strainer Cover T-Seal | SPX4000TS

Hayward Products SKU: HPPSPX4000TS
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Hayward SPX4000TS Strainer Cover T-Seal (T-Ring) for NorthStar Pumps (2003–2007)

Hayward SPX4000TS is a genuine replacement strainer cover T-seal (T-ring) used on Hayward NorthStar pool pumps manufactured in the 2003–2007 range. This seal installs under the clear strainer lid to create an airtight, watertight seal that helps prevent prime loss, air leaks, and water seepage around the pump lid.

Key Features

  • Part Number: SPX4000TS
  • Brand: Hayward
  • Type: Strainer cover T-seal / T-ring (lid seal)
  • Common Alternate Reference: O-510 (often listed as O-510-0)
  • Approx. Dimensions: 7-3/4" x 7-3/4" x 5/16" (typical listing)
  • Helps prevent suction-side air leaks and lid seepage

Common Compatibility (Verify Pump Model & Year)

  • Hayward NorthStar SP4000 series pumps (2003–2007)
  • Hayward NorthStar SP4000X series pumps (2003–2007)
  • Common model references include SP4005(NS), SP4007(NS), SP4010(NS), SP4015(NS), SP4020(NS), SP4030(NS (verify))

Important Fit Note

  • Often listed for NorthStar pumps built 2003–2007.
  • Many references note: pumps built prior to 2003 may use CX400G, and pumps built after 2008 may use SPX4000S. Always confirm by model/year or parts diagram before ordering.

Common Symptoms This Seal Can Fix

  • Air bubbles visible in the pump basket
  • Prime loss after the pump shuts off
  • Water weeping around the strainer lid
  • Flattened, cracked, sticky, or stretched lid seal

Installation Notes

  • Turn off power to the pump before opening the lid.
  • Clean the lid sealing surface and groove thoroughly (remove sand/grit).
  • Install the new T-seal evenly without twisting.
  • Use a light coat of pool-safe silicone lubricant to improve sealing and reduce pinching.
  • Restart and check for air leaks and seepage.

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Maintenance Tips

  • Clean and lightly lubricate lid seals during seasonal service to reduce drying and cracking.
  • Keep the lid and sealing surfaces free of sand and debris—this is a common cause of suction air leaks.
  • If air leaks continue after replacement, inspect the lid and housing for cracks or warped sealing surfaces.
  • Do not overtighten the lid; tighten evenly to a firm seal.
Questions about returns? View our return policy.

Hours Of Operation: 

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

  • Orders costing more than  $300 WILL be required to have signature confirmation upon delivery.
  • Handling time is typically only 1 day.   
  • Any item ordered after 1pm Phoenix time, may not ship same-day.
  • Call us if you require expedited shipping and we can give you quotes based on your needs.

Return Policy:

  • All products, except as noted below, are eligible for return up to 30 days after receipt of item.
  • For returns, an RMA form must be filled out HERE or customers can call for additional help.
  • Shipping costs will be deducted from all returned items.
  • Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in. 
  • Items broken, damaged, or inoperable due to installer error will not be refunded.
  • Fill out the return form or give us a call to obtain an RMA and return shipping label.
  • There are no returns on the Pentair Colorsync 618031
  • No returns on pool cleaners.
  • No returns on opened seals and o-rings.
  • No returns on capacitors.
  • If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
  • All products denied upon arrival at customers house WILL be charged the cost to ship.
  • Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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