MCP5515-1 Diaphragm Water Pump

65 GPM 3-inch Generac diaphragm pump with 1 HP motor, 50 ft head, and cast aluminum body. Designed for heavy-duty pond, trench, and flood water removal.

65 GPM 3-Inch Pump

The Generac MCP5515-1 Diaphragm Water Pump is engineered to move high volumes of water in the most demanding environments. Featuring a rugged cast aluminum body and a 1 HP TEFC motor, this 3-inch pump offers a robust 65 GPM (246 LPM) flow rate for fast and efficient water removal. Built to handle muddy and shallow water conditions without damage, the MCP5515-1 can run dry, self-prime, and keep working even when water pools reappear, making it ideal for construction and flood recovery applications.

Key Benefits of the 65 GPM 3-Inch Pump

  • Powerful 1 HP TEFC, three-phase motor for reliable operation
  • Heavy-duty cast aluminum pump housing for maximum durability
  • Self-priming and capable of running dry without component damage
  • Large 3-inch intake/discharge for high-capacity applications
  • Delivers up to 65 GPM (246 LPM) for rapid dewatering

Common Applications

  • Pond, trench, and foundation water removal
  • Flood recovery and emergency dewatering
  • Agricultural and rural water management
  • Shallow or muddy jobsite dewatering

Packaging & Durability

The Generac MCP5515-1 is designed for demanding field use with corrosion-resistant cast aluminum components and versatile mount options, including skid-mount (S) and wheel mount (W). Its robust build ensures long-term reliability in construction, disaster recovery, and industrial settings.

Product Properties

Property Value
Motor 1 HP TEFC, Three-Phase
Intake/Discharge Size 3 in. (76.2 mm)
Max Flow Rate 65 GPM (246 LPM)
Max Head 50 ft (15.2 m)
Mount Options Skid-Mount (S) or Wheel Mount (W)
Pump Body Material Heavy-duty Cast Aluminum

For a slightly smaller capacity option, view the Generac MCP5438 Honda GX160 Diaphragm Pump. Learn more about Generac solutions at Generac.com.

Technical Documents