Hayward SPX4000DLT Strainer Cover Kit With Lock Ring

What This Part Is Used For
The Hayward SPX4000DLT is a strainer cover kit with lock ring used on compatible Hayward pumps. It closes the pump strainer basket area so the pump can maintain suction, prime properly, and circulate water consistently. This kit installs on top of the pump strainer housing at the equipment pad.

Why This Part Matters
A cracked lid or worn lock ring can let air into the pump, causing prime loss, low flow, and noisy operation. Suction air leaks also show up as bubbles under the lid and can create flow related issues across the equipment pad. Replacing the correct lid kit restores a stable seal and makes routine basket cleanings reliable again. It is commonly replaced when a lid warps from heat or gets overtightened over time.

Key Features and Specifications

• Manufacturer part number: SPX4000DLT
• Strainer cover kit with lock ring for compatible Hayward pumps
• Closes the pump strainer basket and supports suction sealing
• Installs on the pump strainer housing at the equipment pad
• Replacement for damaged lids or locking rings that will not seal

Installation and Fitment Guidance
Turn off power before opening the strainer cover. Inspect the seal and seating surface so the new cover clamps evenly without forcing. Confirm by manufacturer part number before ordering.

About the Hayward Brand
Hayward manufactures a full residential pool equipment ecosystem including pumps, filters, heaters, automation controls, cleaners, chlorination systems, and service parts. Their pumps integrate with Hayward filters and heaters, so suction sealing at the lid matters for the entire system. Serviceable pump lids and hardware help extend pump life and reduce downtime. Hayward replacement parts are widely supported across the pool industry.

Common Service Context
Techs typically replace lid kits when a pump won’t hold prime, the lid shows bubbles, or the locking ring no longer tightens smoothly. It is often identified during routine basket cleanings when the cover is removed and the lid is found cracked or warped.