Davey Starflo SF Pool Pump Lid O-Ring (402811SP)

Genuine Davey Starflo SF Pool Pump Lid O-Ring — part no. 402811SP. This is the O-ring that seals the strainer lid to the pump body on Davey Starflo SF series pool pumps. A worn or cracked lid O-ring causes water to leak from around the strainer lid. Replacing this O-ring restores a watertight seal and stops the leak.

Compatibility

• Davey Starflo SF DSF750-0
• Davey Starflo SF DSF900-0
• Davey Starflo SF DSF1100-0
• Davey Starflo SF DSF1350-0
• Davey Starflo SF DSF750-1
• Davey Starflo SF DSF900-1
• Davey Starflo SF DSF1100-1
• Davey Starflo SF DSF1350-1

Product Details

• Brand: Davey
• Part number / SKU: 402811SP
• Material: rubber
• Genuine Davey spare part

Frequently Asked Questions

How do I know if this O-ring needs replacing?

If water is leaking from around the strainer lid (the clear or opaque lid on top of the pump body), the lid O-ring is the most likely cause. Turn off the pump, remove the strainer lid, and inspect the O-ring for cracks, flattening, or deformation. Even if the O-ring looks intact, if it has been in service for several years it may have lost its elasticity and should be replaced.

Should I lubricate the O-ring when fitting it?

Yes — apply a small amount of silicone-based O-ring lubricant (not petroleum-based grease) to the O-ring before fitting. This helps the O-ring seat correctly in the lid groove, prevents pinching, and extends its service life. Do not use petroleum-based lubricants as these degrade rubber O-rings.

Is this a genuine Davey part?

Yes — part 402811SP is a genuine Davey spare part, not an aftermarket substitute. Using a genuine O-ring ensures correct fit and seal performance.