Hayward Strainer Cover O-Ring for Pool Pump Strainer Covers | SPX4000S
- In stock, ready to ship
- Backordered: contact us for ETA
- SKU:
- SPX4000S
-
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About This Item
OEM Strainer Cover O-Ring Replacement
The Hayward Strainer Cover O-Ring (SPX4000S) is the OEM replacement O-ring designed to seal the strainer cover on compatible Hayward pool pumps, preventing air ingestion and water leaks at the pump strainer housing.
IMPORTANT: LUBRICATION REQUIRED — SOLD SEPARATELY
Always lubricate this O-ring with a silicone-based lubricant before installation. Browse our Pool Plumbing Lubricants for a compatible silicone lubricant.
This O-ring seats between the strainer pot cover and the pump body, maintaining an airtight seal that keeps the pump primed and operating at full efficiency. Replacing a worn, cracked, or compressed O-ring is one of the most common first-response repairs when a pump loses prime or shows signs of air bubbles in the return lines.
Specifications
| Hayward Part Number | SPX4000S |
| Part Type | Strainer Cover O-Ring |
| UPC | 610377079242 |
Poolaroo Pro Tip
Inspect the strainer cover O-ring every season — even if it isn't visibly cracked, an O-ring that has flattened or lost its round profile will no longer hold a reliable seal under suction. Before fitting the new O-ring, clean the groove in the strainer pot cover to remove any grit or old lubricant residue, then apply a thin, even coat of silicone-based lubricant. Browse Pool Plumbing Lubricants for a compatible option. Never use petroleum-based products — they degrade rubber O-rings rapidly. Tighten the strainer cover by hand only; over-tightening can distort the O-ring and cause the very leak you are trying to fix.
