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Par-Max HD4 Heavy Duty Water Pressure Pump - 24V - 4 GPM - 40 PSI
HD (Heavy Duty) models include a wider diameter motor with a powder coated shell, cast aluminum endbells and lower housing to improve pressure capability and life. Available in configurations up to 6 GPM (23 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.
Features:
Co-molded diaphragm technology for long life and durability
HD models feature 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
WARNING: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.
Jabsco Par-Max HD4 Heavy Duty Water Pressure Pump delivers reliable on-demand water pressure for marine vessels and other water-system applications requiring a 24-volt, 4 GPM pump with a 40 PSI setting. Designed for demanding service, the HD4 combines a heavy-duty motor, cast aluminum housing components, and durable diaphragm technology to support long service life and consistent operation.
The pump features an integrated sealed pressure switch for automatic on-demand operation, along with an integrated bypass module that helps reduce cycling and provide smoother flow. Self-priming capability supports flexible installation, while the pump can run dry without damage. Quick-connect ports simplify installation, servicing, and maintenance, and vibration-dampening mounting feet help support quieter operation.
The Jabsco Par-Max HD4 uses a brushed permanent-magnet TENV motor and a glass fiber-reinforced polypropylene upper pumphead housing. Its co-molded TPV diaphragm and EPDM check valves provide durable fluid-handling components. With an IPX6 ingress protection rating and CE, ISO8846, and RCM certifications, the Q402J-115S-3A is built for water pressure systems where dependable performance and practical serviceability matter.
Key Features:
Heavy-duty construction: Powder-coated motor shell, cast aluminum endbells, and lower housing support pressure capability and long-term use.
On-demand operation: Integrated sealed pressure switch automatically operates the pump as water pressure changes.
Smooth water delivery: Integrated bypass module helps reduce cycling and provide smoother flow.
Installation flexibility: Self-priming design and quick-connect ports simplify installation and maintenance.
Durable operation: Co-molded diaphragm technology, vibration-dampening feet, and dry-run capability support dependable service.
Product Details:
Brand: Jabsco
Product: Par-Max HD4 heavy-duty water pressure pump
Choose the Jabsco Par-Max HD4 Q402J-115S-3A for a robust 24-volt water pressure pump designed for dependable on-demand service.
California Proposition 65 Warning: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.
SEO Meta Description: Shop the Jabsco Par-Max HD4 24V water pressure pump with 4 GPM flow, 40 PSI pressure, self-priming design, and durable heavy-duty construction.
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No option for zero stars. I ordered a roll of 6 awg duplex wire and they drop shipped me a cheap, completely unrelated item. Nobody answers emails or the phone.
WARNING: This product can expose you to chemicals including ANTIMONY OXIDE (ANTIMONY TRIOXIDE) which is known to the State of California to cause cancer. For more information go to 
