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5240 UNx™ Bareshaft Pump - #8HF Plungers

The Jetstream model 5240 waterblast pump is capable of power input of 321 to 400 horsepower (298 kW). It is the most advanced and efficient waterblast pump of its size in the industry. Combining the strength and durability of a proven power end workhorse with the unparalleled simplicity, serviceability and versatility of the UNx™ fluid end design, Jetstream bareshaft pumps are the best choice for those building their own system or replacing a complicated, worn or unreliable pump.

  • 321 to 400 horsepower (239 to 298 kW)
  • Three Plunger (triplex)


UNx™ Fluid End Features

  • Ductile iron power frame is the strongest in the industry
  • Crankshaft machined from high-tech forged alloy for superior performance at higher power input
  • Largest bearings of any comparable pump on the market


Power End Specifications

No. of Plungers  3
Plunger Stroke 5.25 in (133 mm)
Discharge Ports 40K Port 
Top Ports (Accessory) 40K Port
Pump Speed Range 183-518 RPM
Power End 5200
Max Power Input 400 hp (298 kW)
Max Frame Load 17,750 lb (79 kN)
Total Weight 2,100 lb (954 kg)
Oil Type 80W-90
Pump Oil Capacity 9 gal (34 l)


Fluid End Specifications

Plunger Size 8HF
Plunger Diameter .790 in (20.10 mm)
Max Power Input / Operating Pressure 400 hp (298 kW) @ 36,000 psi (2483 bar)
Flow at Specified Speeds
183 RPM 5.9 gpm (22 lpm)
200 RPM 6.7 gpm (25 lpm)
300 RPM 10.0 gpm (38 lpm)
400 RPM 13.4 gpm (51 lpm)
500 RPM 16.7 gpm (63 lpm)
518 RPM 17.2 gpm (65 lpm)


*Displacement (flow) values represented refer to "theoretical" flow, neglecting inefficiency resulting from compressibility of water and expansion of pressure-bearing components.


Part Number: 67376
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  • Operation Manual