The Polaris R0723100 Pump Body is a genuine OEM replacement housing designed specifically for the Polaris PB4SQ multistage booster pump. This component, also referred to as the volute or pump housing, forms the main structural body of the pump and directs water flow through the impeller stages to generate the pressure required to operate pressure-side pool cleaners.

The pump body plays a critical role in maintaining hydraulic efficiency, pressure consistency, and leak-free operation. Over time, exposure to high pressure, vibration, temperature changes, and chemical-treated water can cause pump housings to crack, warp, or degrade. Even small fractures or sealing surface damage can lead to leaks, reduced pressure output, or pump failure.

Replacing a damaged or worn pump body restores proper internal flow paths and allows the PB4SQ booster pump to operate as designed, delivering consistent pressure to compatible Polaris pressure-side cleaners.

Why the Pump Body Matters

The pump body directly affects pressure output and system reliability.

Why this matters:

• Maintains proper water flow through the impeller stages

• Prevents external leaks and pressure loss

• Supports correct pump alignment and internal sealing

• Protects internal components from vibration-related damage

• Restores full booster pump performance

A compromised pump housing can cause pressure drop, water leakage, noise, or premature failure of internal components.

Designed Specifically for the Polaris PB4SQ Booster Pump

The Polaris R0723100 Pump Body is manufactured to OEM specifications and is designed exclusively for the Polaris PB4SQ booster pump. It is not interchangeable with older PB4-60 pump housings or other Polaris booster pump models.

Using a genuine Polaris replacement ensures proper fit, correct internal clearances, and compatibility with factory seals, O-rings, and internal components. Aftermarket or mismatched housings can result in improper sealing, reduced pressure output, or shortened pump life.

Always confirm pump model compatibility before installation.

Service-Ready Replacement Housing

Pump body replacement is commonly required when addressing visible cracks, chronic leaks, or pressure loss that cannot be resolved by replacing seals or O-rings alone. Installation typically involves transferring internal components such as impellers, seals, and diffusers into the new housing.

During replacement, it is recommended to inspect:

• Shaft seals and O-rings

• Impellers and diffusers

• Mounting hardware and gaskets

Replacing worn sealing components at the same time helps ensure a leak-free installation and long-term reliability.

Product Specifications

Buy with Confidence from Benchmark Pool Supply

When you purchase the Polaris R0723100 Pump Body from Benchmark Pool Supply, you’re getting a genuine OEM replacement component trusted by pool service professionals. We stock critical Polaris booster pump parts to help restore pressure performance and extend pump service life.

Benchmark Pool Supply is your trusted source for professional-grade Polaris booster pump parts and pool equipment repair solutions.