Aladdin O-302 New-Style Pump Lid O-Ring | 39000400, 352600

Key Benefits + Pump Lid Fitment

• Aladdin O-302 replacement O-ring for specific new-style pool pump lid applications.
• Cross-referenced to American/Pentair Power Pump lid O-ring 39000400.
• Documented for Pac-Fab 352600 new-style 700 pump lid applications.
• Also documented for Pac-Fab 353525 new-style clear pump lids and 355332 new-style Challenger lid applications.
• Used by Aladdin as the new-style lid O-ring in Challenger/Pinnacle and HydroPump repair kits.
• Confirm the pump model, lid style, and original part number before ordering.

Quick Product Summary

The Aladdin O-302 is a replacement pump lid O-ring used on select older American, Pentair, and Pac-Fab pump applications. Aladdin identifies O-302 as a new-style lid O-ring in Challenger/Pinnacle and HydroPump repair kits, and its cross-reference material ties O-302 to American/Pentair 39000400 as well as Pac-Fab 352600 and 353525 applications. Because several of these pump families were produced with different lid designs and O-rings, verify the original part number and lid style before purchase rather than selecting by appearance alone.

Best For

• American/Pentair Power Pump applications calling for 39000400
• Pac-Fab 700 pump new-style lid applications calling for 352600
• Pac-Fab clear-lid applications calling for 353525
• Documented new-style Challenger and HydroPump lid service

Why This Matters

• The pump lid O-ring seals the strainer lid so the pump can maintain the intended seal at the lid connection.
• A flattened, cracked, stretched, or incorrectly sized lid O-ring can contribute to water leakage or air entering at the lid.
• Matching the documented O-ring helps avoid forcing an incorrect seal into the lid groove.
• Older pump families can use different old-style and new-style lid O-rings, making model and part-number verification important.

Common Signs You Need This / Use This When

• The existing pump lid O-ring is cracked, flattened, stretched, hardened, or missing.
• The pump lid is difficult to seal even after the groove and mating surfaces are cleaned.
• Your parts information identifies 39000400, 352600, 353525, or another verified O-302 application.
• You are servicing a documented new-style lid application in a Challenger/Pinnacle or HydroPump repair.

Product Specifications

Compatibility / Fitment Notes

Aladdin documents O-302 as the new-style lid O-ring in Challenger/Pinnacle and HydroPump repair kits. Aladdin cross-reference material identifies O-302 for the American/Pentair 39000400 Power Pump lid O-ring, while other documented references include Pac-Fab 352600 new-style 700 pump lids, 353525 new-style clear pump lids, and 355332 new-style Challenger pump lid applications. Some of these pump families also used different old-style lid O-rings, so match the original number, pump model, and lid design before ordering.

Installation / Use Notes

Disconnect power before servicing the pump. Remove the lid and old O-ring, then clean and inspect the O-ring groove and lid sealing surfaces. Install the replacement without twisting, pinching, or excessively stretching it. Use only a lubricant suitable for pool and spa O-rings when appropriate. Reinstall the lid according to the pump manufacturer's instructions and confirm the lid is properly seated before restarting the system.

Buy with Confidence

Benchmark Pool Supply helps customers identify replacement pool pump parts by manufacturer, model, and OEM cross-reference. For O-302, compare your existing lid O-ring and parts information against the documented new-style pump lid applications before ordering so you can avoid selecting an old-style or otherwise incompatible seal.