Multiquip 9430100010 Casing QP-402A - OEM Replacement Part for Centrifugal Water Pumps

The pump casing is the primary housing component that contains and directs water flow in self-priming centrifugal pump systems. This genuine OEM casing maintains the critical pressure differential needed for the pump's self-priming action, creating the vacuum that draws water through the suction line while the impeller generates the centrifugal force to expel water through the 4-inch discharge port. Built to handle clean water applications at flow rates up to 425 gallons per minute, this casing is engineered to withstand maximum operating pressures of 43.3 psi and maintain pump performance in residential dewatering, swimming pool drainage, and similar clear-water transfer operations.

The casing must be properly sealed and filled with water before each operation to ensure proper priming—operating without pre-filling will damage internal components. This housing component is essential for maintaining the pump's maximum suction lift capability of 25 feet at sea level and supports the unit's 100-foot maximum head specifications.

Compatible with the following Multiquip models:

• QP402B Centrifugal Pump

Genuine Multiquip OEM part, sold by an authorized dealer.