Generac Magnum MCP 5438 2" Gas-powered

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Reliable, Easy to Use, Wear Resistant

The MCP 5438 diaphragm pump is built for solid performance; reliable 5.5hp Honda engine, aluminum pump construction, standard Thermal Plastic Elastomer and up to 50 gallons per minute pumping capacity. 

The MCP 5438 diaphragm pump is easy to use with a simple/low maintenance design which can run dry indefinitely without damage and automatically re-primes when seepage reappears. 

Ideal for seepage dewatering, cleaning septic tanks, pumping industrial waste and marine tanks, small wellpoint systems and dewatering in sandy, muddy or trash filled waters.


  • 2" suction/discharge
  • Five(5) diaphragm material options depending on application
  • Skid or wheel mounted for easy manueverability
  • Strong performer in shallow, high solid conditions
  • Auto priming intermittent pumping
  • Limitless dry run without damage
  • Simple design/low maintenance
  • Large opening flap valves
  • Self cleaning water flow
  • Durable cast aluminum parts
  • Enclosed gears in oil bath


Pump Set (Engine/Pump)  
Max. Pump Output gpm (Lpm) 50 (189)
Max. Pump Output gph (Lph) 3000 (11,356)
Total Dynamic Head ft (m) N/A
Max. Discharge Head ft (m) 25 (8)
Max. Diameter of Solids in (mm) Up to 1.4" spherical
Max. Lift Suction ft (m) 25 (8)
Make/Brand CH&E 5438 Aluminum
Fitting Size 2" NPT
Impeller Type N/A
Impeller Material N/A
Volute Casing Material N/A
Seal N/A
Shaft Material N/A
Brand Honda
Model GX140
Type Gasoline-powered
Engine Power - Continuous hp (kW) 5.5 (4.1)
Operating Speed rpm 3600
Starter Recoil
Fuel Tank gal (L) .95 (3.6)
Approximate Run Time hrs 3.3
Size and Weight  
Trailer Mounted - L x W x H in (m) N/A
Wheel Mounted - L x W x H in (m) 40 x 25 x 23
   (1.02 x .64 x .58)
Dry Weight lbs (kg) 131 (59.4)
Number of Axles N/A
Hitch N/A