March 0125-0083-0100 Drive Magnet

March 0125-0083-0100 Drive Magnet

The March 0125-0083-0100 is an OEM motor-side drive magnet with a 0.250-inch bore. It transfers motor torque magnetically to the impeller in compatible March magnetic drive pump assemblies.

Key Features

• Genuine March OEM drive magnet
• 0.250-inch nominal bore
• Used in compatible Series 809 and selected Series 2 configurations
• Part of the sealless magnetic coupling
• Motor-side replacement component
• Different from the 6 mm bore variant

Magnetic Coupling Function

The drive magnet rotates with the motor shaft and magnetically couples with the internal impeller magnet. This transfers torque while keeping the fluid chamber isolated from the motor shaft.

Compatibility

March lists this magnet in selected 809-BR-HS assemblies. Related pump configurations can use different shaft bore sizes and magnetic couplings.

Maintenance

Inspect the magnet for cracks, corrosion, looseness and damage. Check the motor shaft and mounting arrangement before installation.

Selection Guidance

Confirm the exact bore diameter and pump model. Do not substitute 0125-0083-0200, the 6 mm bore variant, without verified compatibility.