Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
Pentair 355004 Seal Plate | Challenger & Waterfall Pumps
Fits these models (2)
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
OEM Pentair Seal Plate 355004 is a replacement component crafted to restore sealing function and pressure control in Pentair Challenger and Waterfall pumps. This part fits between the motor and pump housing, securing the mechanical seal and helping prevent leaks. Engineered from reinforced thermoplastic, the plate withstands harsh pool chemicals and high temperatures. Whether used in residential or commercial systems, it delivers long-lasting durability and restores the integrity of your pump’s internal components.
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Precision Fit for Pentair Pumps: Compatible with Challenger and Waterfall models, this OEM seal plate aligns with factory specs to ensure proper system operation.
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Critical Seal Support Function: Secures the mechanical seal between pump and motor, maintaining system pressure and reducing the risk of water leaks.
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Corrosion-Resistant Thermoplastic: Made of chemically resistant material to endure long-term exposure to chlorine, heat, and pressure.
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Enhances Pump Reliability: Helps restore optimal circulation by ensuring tight sealing, which supports filtration and reduces energy loss.
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Dependable for Commercial Use: Sturdy enough for demanding commercial settings as well as routine residential pool maintenance.
- (1) Pentair 355004 Seal Plate
- Pentair Challenger Pump
- Pentair Waterfall Pumps