Zoeller M63 Automatic Submersible Sump Pump – 3/10 HP, Cast Iron, LED Power Plug, 115V

Protect your basement with a sump pump designed for steady performance under pressure. The Zoeller M63 Automatic Submersible Sump Pump combines rugged materials with practical features to move water quickly and reliably when it matters most. Its oil-filled motor sits inside a cast iron housing, helping dissipate heat so the unit can run longer during heavy pumping cycles, while a built-in float switch keeps operation automatic and hands-free.

Smart power at a glance

The M63 includes Zoeller’s 9-foot cord and an LED plug, so you can verify power at a glance and ensure the pump is ready when you need it. This small detail can streamline installation and reduce downtime during critical rain events.

High flow with solid handling

With a capacity up to 4320 gallons per hour, this pump is built to move water efficiently through your sump or drainage system. A non-clogging vortex impeller, crafted from corrosion-resistant cast iron, is designed to pass solids more easily than typical impellers, helping minimize maintenance and downtime during busy seasons.

Automatic, reliable operation

The built-in snap-action float switch enables automatic activation as water rises, eliminating the need for manual control. This feature is especially helpful during storms or ongoing groundwater conditions when hands-free performance is valued by homeowners and professionals alike.

Durability you can count on

Oil-filled motors are known for effective heat dissipation, which helps prevent overheating and extend the life of your pump. The combination of a cast iron housing and a robust vortex impeller supports long-term reliability in challenging environments.

Quality you can trust

Every Zoeller M63 is factory tested, including a submerged water test to confirm performance under real operating conditions. Backed by a 5-year limited warranty, this pump offers both protection and peace of mind in demanding basements and crawlspaces.

What this means for you

• Power verification at a glance with LED plug and 9-foot cord
• Efficient water movement up to 4320 GPH for faster drainage
• Solid handling with a non-clogging vortex impeller
• Automatic operation with a dependable float switch
• Durable cast iron housing and oil-filled motor for heat management
• 100% factory-tested with a 5-year warranty

Two quick takeaways

• Ideal for basements facing heavy rain or rising groundwater
• Durable, low-maintenance design suitable for long-term use