Pentair WhisperFloXF Seal Plate 400002Z

Pentair SKU: 400002Z
IntelliFloXF VS (After August 2015) Not sure it fits? See this part on the interactive diagrams IntelliFloXF VS (After August 2015)WhisperFloXF VS & Max-E-ProXF VS Commercial PumpWhisperFloXF Pump

Pentair WhisperFloXF Seal Plate 400002Z

Pentair SKU: 400002Z
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$149.94
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Questions about returns? View our return policy.
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Pentair 400002Z XF Series Seal Plate

The Pentair 400002Z is a genuine replacement seal plate for select Pentair XF Series pool pumps. The seal plate is located between the motor and pump wet end and provides the mounting surface for the mechanical shaft seal, helping maintain proper alignment and sealing during pump operation.

Product Features

  • Genuine Pentair replacement part
  • Part number: 400002Z
  • Also commonly listed as 400002
  • Replacement XF Series pump seal plate
  • Used between the pump motor and wet end assembly
  • Helps support the mechanical seal and maintain proper pump sealing
  • Seal plate only; mechanical seal and O-rings are typically sold separately unless otherwise stated

Common Compatibility

  • Pentair WhisperFloXF pumps
  • Pentair WhisperFloXF VS pumps
  • Pentair IntelliFloXF variable speed pumps
  • Select Pentair XF Series pump wet-end assemblies

When to Replace

Replace the seal plate if the original plate is cracked, warped, leaking, damaged during service, or no longer provides a proper sealing surface for the mechanical shaft seal. A damaged seal plate can cause leaks near the motor side of the pump and may lead to repeat seal failure if not replaced.

Installation Tips

  • Turn off power to the pump at the breaker before servicing.
  • Relieve pressure and close valves before opening the pump wet end.
  • Inspect the mechanical shaft seal, seal plate O-ring, diffuser O-ring, impeller, and impeller screw while the pump is apart.
  • Replace worn seals and O-rings during reassembly to help prevent leaks.
  • Avoid touching the polished faces of the mechanical seal when installing it into the seal plate.
  • Confirm your pump model and parts diagram before ordering replacement parts.

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Maintenance Tips

Whenever the pump wet end is opened, inspect all O-rings, seals, hardware, and plastic components before reassembly. Replacing worn sealing parts during the same repair can help prevent leaks, priming issues, and repeat disassembly. Use only pool-safe silicone lubricant on O-rings and avoid petroleum-based lubricants.

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.
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