Hayward SPX1500KA Seal Assembly with Cup for Power‑Flo Pumps — Replacement Seal for SP1500/SP1580/SP1590/SP1700, Leak‑Free Shaft P

Hayward SPX1500KA is a complete shaft seal assembly with cup designed to replace worn seals in compatible Power‑Flo pump models, restoring leak-free operation and shaft protection.

If your Hayward Power‑Flo or Power‑Flo Matrix pool pump is leaking or making more noise than usual, the SPX1500KA seal assembly provides the matching replacement parts needed to bring the pump back to stable service. This kit is engineered to fit a wide range of Hayward SP1500, SP1580, SP1590 and SP1700 series pumps and includes the cup so you can replace the entire sealing interface in one service visit. It’s a straightforward way to maintain circulation performance without swapping the whole pump.

Which Hayward pump models does this seal assembly fit?

The SPX1500KA was manufactured to match seal dimensions and mounting for many Power‑Flo families. It explicitly fits Power‑Flo Matrix SP1590 and Power‑Flo LX SP1580 model lines, most SP1500 series pumps and strainer models, plus Power‑Flo II SP1700 variants.

• Power‑Flo Matrix: SP1591, SP1592, SP1593, SP1575LX, SP1580, SP1580X15, SP1520UN, EP1500LX, SP1680
• Power‑Flo / SP1500 series: SP1500, SP1510, SP1511, SP1550, SP1575, EP1500, SP1516
• Power‑Flo II / SP1700 series: SP1705, SP1710, SP1711, SP1720, SP1725, SP1750, SP1775, SP1780

How do I know when the seal assembly needs replacement?

Common signs are visible leakage near the motor shaft, reduced pump prime, or unusual motor and bearing noise caused by water intrusion. If you spot moisture inside the pump housing or find the pump running less efficiently, replacing the seal assembly is a recommended preventive repair.

• Visible water drips around the motor coupling or front housing
• Loss of prime or decreased flow rate
• Grinding or humming sounds from the motor area indicating shaft wear
• Routine maintenance intervals after several seasons of operation

What’s included and what should I expect during installation?

The SPX1500KA kit contains the seal components plus the cup required to rebuild the sealing interface; weight is approximately 1.9 pounds. Installation typically requires disassembly of the pump volute and impeller, removal of the old seal and cup, clean mating surfaces, and careful seating of the new parts to ensure a proper, leak-free fit.

• Complete seal assembly plus cup included for a one‑step replacement
• Approximate pack weight: 1.9 pounds for shipping and handling reference
• Basic tools required: socket/hex set, screwdrivers, lubricant for O‑rings, clean cloth
• Recommended: inspect shaft and bearings while pump is open

Will this seal work as a DIY fix or should a pro install it?

Many homeowners with basic mechanical skills can replace the seal assembly using common hand tools and following the pump manual; however, if the motor shaft or bearings are corroded or damaged, professional service is advisable. Proper alignment, clean surfaces, and correct seating are essential to avoid premature failure.

• Suitable for do‑it‑yourselfers comfortable with pump disassembly
• Seek professional help if shaft or bearing damage is suspected
• Follow Hayward service manual guidance for torque and alignment
• Keep spare O‑rings and lubricant on hand for a smooth replacement

Who is this for? The Hayward SPX1500KA seal assembly with cup is intended for pool owners, service technicians, and maintenance professionals who operate Hayward Power‑Flo pumps and need an exact-fit replacement to stop leaks and extend pump life. It’s particularly useful for those maintaining SP1500, SP1580, SP1590 or SP1700 series pumps who want an OEM-compatible sealing repair without replacing the entire pump unit.