Product Overview

The Pentair 400002 WhisperFloXF Pump Seal Plate is a replacement seal plate designed for compatible Pentair WhisperFloXF pool and spa pumps. The seal plate is an important internal pump component that helps support the motor-to-pump connection and provides the mounting surface for the shaft seal assembly.

This part is ideal for pump repairs, rebuilds, and maintenance when the existing seal plate is cracked, warped, leaking, or damaged.

Ideal For

Pool owners, service technicians, and repair professionals replacing a worn or damaged seal plate on a compatible Pentair WhisperFloXF pump.

Key Features

Manufacturer: Pentair

Part Number: 400002

Product Type: Pump seal plate

Designed for compatible Pentair WhisperFloXF pumps

Helps support the pump shaft seal assembly

Provides the connection point between the motor and wet end

Suitable for pump repair and rebuild applications

Durable construction for pool and spa pump environments

OEM replacement part for proper fit and performance

Benefits

A damaged or worn seal plate can contribute to leaks, seal failure, poor alignment, and reduced pump reliability. Replacing the seal plate with the correct Pentair part helps restore proper pump assembly, supports correct shaft seal positioning, and helps protect the motor and pump components from water leaks.

Specifications

Warranty & Compatibility

Installation Note

Professional installation is recommended. When replacing the seal plate, inspect the shaft seal, gaskets, diffuser, impeller, and related pump components for wear or damage. Shaft seals are commonly replaced at the same time to help prevent leaks after reassembly.

Compatibility Note

Please verify your pump model and part number before purchasing. This listing is for Pentair part number 400002, a WhisperFloXF pump seal plate for compatible Pentair WhisperFloXF pool and spa pumps.

Customer-Facing Q&A

Q: What is this part used for?
A: This is a replacement seal plate for compatible Pentair WhisperFloXF pumps. It helps support the shaft seal and connects the motor side of the pump to the wet end.

Q: Is this an OEM Pentair part?
A: Yes, this listing is for Pentair part number 400002.

Q: When should I replace the seal plate?
A: Replace it if it is cracked, warped, leaking, damaged, or if the shaft seal area no longer seals properly.

Q: Should I replace the shaft seal at the same time?
A: It is commonly recommended to replace the shaft seal when the seal plate is removed to help prevent future leaks.

Q: Will this fit all Pentair pumps?
A: No. This part is designed for compatible Pentair WhisperFloXF pumps. Please confirm your exact pump model before ordering.