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Hayward Pump Strainer Cover T-Seal | SPX4000TS

Hayward Products SKU: SPX4000TS

Hayward Pump Strainer Cover T-Seal | SPX4000TS

Hayward Products SKU: SPX4000TS
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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.

Related Products

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: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.