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Jabsco Par Max HD4 Water Pump


Jabsco’s updated and improved lineup of freshwater supply pumps are designed to provide years of satisfactory service in applications both large and small.

This HD (Heavy Duty) model includes a wider diameter motor with a powder coated shell, cast aluminum endbells and lower housing to improve pressure capability and life.

With an open flow rate of 4 GPM (15 LPM) and 60 PSI (4.1 BAR), these pumps deliver exceptional performance. Standard models provide good performance in an economical footprint.

These configurations are available in 1-3 GPM, perfect for vessels with 1-3 outlets. A plastic housing protects the motors on these units from corrosion.

Kit includes: 

  • 1 x Par-Max HD4 Freshwater Pump
  • 2 x 1/2″ straight hosebarbs
  • 1 x 90° 40 mesh quick connect strainer

Product Features:

  • Co-molded diaphragm technology for long life and durability
  • heavy duty motors and cast aluminum lower housings which allow for longlife, even at high pressures
  • Efficient and quiet operation
  • Integrated, sealed pressure switch for on-demand operation
  • Self-priming allows for installation versatility
  • Can run dry without damage
  • Quick connect ports for ease of installation, servicing, and maintenance
  • Vibration dampening mounting feet
  • Equipped with integrated bypass module to reduce cycling and provide smoother flow


Categories: ,
Voltage 12V or 24V
Open Flow 4 GPM (18.9 LPM)
Shut-off Pressue 40 PSI (4.8 bar)
Max Current Draw 10 Amps @ 40 PSI (2.8 BAR)
Recommended Fuse Size 15 Amps (not included)
Motor Design Brushed, permanent magnet TENV
Pumphead upper housing material Glass fiber reinforced polypropylene
Diaphragm Co-molded TPV
Check Valves EPDM
Max Inlet Pressure 30 PSI (2.1 Bar)
Fluid Temp Range 32°F – 140°F (0°C – 60°C)
Dry Self-priming Capability 7ft min (2.1m min)
Certifications CE, ISO8846, RCM
Ingress protection IPX6
Warranty 3 years
Weight 1 kg
Dimensions 39 × 14 × 16 cm


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