Comet 0031.0026 Shaft for MC25 Pump

Comet 0031.0026 Stainless Steel Shaft for MC25 Pump

The Comet 0031.0026 Shaft is a stainless steel replacement shaft for the Comet MC25 diaphragm pump. This component is used within the pump's mechanical drive assembly and is intended for replacing a worn or damaged original shaft during pump repair or rebuilding.

IMPORTANT PART NUMBER UPDATE: Comet part number 0031.0026 supersedes 0031.0006. If your MC25 pump parts diagram or previous order references 0031.0006, the updated replacement part number is 0031.0026.

Features & Benefits

• Replacement Pump Shaft: Designed for the Comet MC25 diaphragm pump.
• Stainless Steel Construction: Provides corrosion resistance for the shaft component.
• Updated Part Number: Replaces the previous Comet 0031.0006 shaft.
• Pump Repair Component: Allows replacement of a damaged shaft without purchasing an entirely new pump.

When Should You Replace the Pump Shaft?

The shaft is part of the pump's mechanical drive assembly. It may require replacement if inspection during a pump repair reveals:

• Visible bending, scoring, or other shaft damage
• Excessive wear at bearing or mating-component contact surfaces
• Corrosion, pitting, or damaged mounting surfaces
• Damage discovered during a pump teardown or rebuild

Repair Tip: If a shaft is damaged, inspect the related bearings, seals, and drive components before reassembly. Replacing the shaft alone may not resolve a problem caused by another worn or misaligned component.

Product Specifications

Installation & Compatibility

Confirm that your pump is a Comet MC25 and that the shaft being replaced corresponds to part number 0031.0006 or 0031.0026. Refer to the pump parts breakdown to identify the component before disassembly.

Before servicing the pump, disconnect the power source, relieve all system pressure, and follow the manufacturer's disassembly and reassembly procedures. Inspect associated components for damage and verify proper operation after completing the repair.

Comet MC25 Parts Diagram & Instruction Manual

Use the following manufacturer documentation to identify pump components and review service procedures.

Download Comet MC25 Diaphragm Pump Parts Breakdown (PDF)

Download Comet Diaphragm Pump Instruction Manual (PDF)