Jabsco Par-Max HD5 Freshwater Delivery Pump, 12V, 5 GPM, IPX6

Overview

The Jabsco Par-Max HD5 is a 12 VDC freshwater delivery pump for marine water pressure systems, offered in 40 PSI and 60 PSI pressure switch cut-off versions. It delivers 5 GPM (18.9 LPM) open flow from a 5 chamber diaphragm pump platform, giving boat owners a practical upgrade or replacement option for onboard freshwater service.

This pump is made for 12 V boat electrical systems with a 9 to 13.6 VDC operating range. It uses an integrated sealed pressure switch, quick-connect ports, an internal bypass, and a noise dampening baseplate, which helps it work smoothly with faucets, showers, and other freshwater outlets on board.

The HD5 is self-priming up to 8 ft (2.4 m) dry prime and can run dry without damage. It also carries an IPX6 rating and ISO 8846 ignition protection, both useful details when planning installation in marine spaces exposed to spray, vibration, and electrical safety requirements.

Key features

• 5 GPM (18.9 LPM) open flow for freshwater delivery on boats with multiple onboard outlets.
• 12 VDC operation with a 9 to 13.6 VDC voltage range for standard 12 V marine electrical systems.
• Integrated sealed pressure switch with an internal bypass to reduce rapid pump cycling at taps and showers.
• 5 chamber diaphragm construction with a Santoprene diaphragm and EPDM valves in the wetted path.
• Self-priming up to 8 ft (2.4 m) dry prime and run-dry capable for practical tank-fed installations.
• IPX6 rating and ISO 8846 ignition protection for common marine mounting environments.
• Quick-connect ports work with the included 1/2 inch (13 mm) and 3/4 inch (19 mm) straight hosebarb fittings.
• 20 amp fuse requirement, with fuse not included, helps guide proper electrical planning during installation.

Variants

This parent product covers two Par-Max HD5 configurations. Both use the 12 VDC, 5 GPM pump platform; the verified difference between them is the pressure switch off setting.

The 40 PSI version uses the lower cut-off pressure for systems specified around 2.8 bar. The 60 PSI version keeps the same flow rating with a higher 4.1 bar cut-off pressure for freshwater systems that call for that setting.

• P501J-115S-3A: pressure switch off setting 40 PSI (2.8 BAR). This version uses the lower cut-off setting and draws up to 12 amps at that pressure.
• P501J-118S-3A: pressure switch off setting 60 PSI (4.1 BAR). This version uses the higher cut-off setting and draws up to 13 amps at that pressure.

Installation and setup

The pump uses quick-connect ports and includes straight hosebarb fittings for 1/2 inch (13 mm) and 3/4 inch (19 mm) hose connections. Plan enough clearance around the pump for the port clips, hose bends, wiring, and future service access.

The unit has 12 inch (305 mm), 14 AWG leads with stripped wire ends. During installation, allow for a protected connection point, a correctly sized 20 amp fuse, and wiring suitable for the pump location and vessel electrical layout.

Materials and marine environment

The wetted path includes a fiber reinforced polypropylene upper housing, polypropylene check valve retainer, Santoprene diaphragm, and EPDM valves and seals. The lower housing is cast aluminum, the pump head fasteners are stainless steel, and the baseplate uses rubber feet to help control vibration.

Fluid and ambient temperature ranges are 32°F to 140°F (0°C to 60°C). This makes the HD5 a good fit for freshwater pressure systems on cruising boats, fishing boats, and other 12 V vessels where steady domestic water service matters.

What’s included

• Par-Max HD5 pump unit
• Two 1/2 inch (13 mm) straight hosebarb fittings
• Two 3/4 inch (19 mm) straight hosebarb fittings
• 90 degree quick-connect strainer with 40 mesh screen
• Installation and operation manual

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

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We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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