Shurflo Aqua King II Supreme Fresh Water Pump | 5.0 GPM | 275-4158163E75
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Shurflo Aqua King II Supreme Fresh Water Pump — 5.0 GPM
Bring consistent, household-quality water pressure to every fixture aboard. The Shurflo Aqua King II Supreme is engineered for boats with multiple outlets — galley, head, and shower running simultaneously — delivering smooth, steady pressure without the pressure spikes or cycling that plague lesser pumps.
A built-in mechanical bypass lets the pump vary its flow rate to match any demand condition, from a trickle at the galley tap to full flow at the shower — all without requiring a separate accumulator tank. The heavy-duty motor is built to handle the marine environment long-term, and the pump can run dry without damage, giving you peace of mind if the tank runs low.
Key Features
- Mechanical bypass varies flow rate automatically — no accumulator required
- Operates smoothly at low flow without cycling on and off
- Electro-coated seamless motor shell resists corrosion
- O-ring sealed end bells and fully sealed wire entries on motor and pressure switch
- Dry-run safe — pump will not be damaged if run without water
- Ignition protected and thermally protected
- Includes inlet strainer and 1/2" hose barb fittings
Parts Desk Insights
Best use case: The right choice for mid-to-large cruising boats with two or more simultaneous water outlets and no existing accumulator tank. The bypass function eliminates the need for a separate accumulator, simplifying installation. If you need both a pressure pump and a dedicated washdown pump in one package, see the Shurflo High Flow System II which bundles this pump with the Pro Blaster II washdown pump. For washdown-only duty, the Shurflo ProBlaster II Washdown Pump is available separately. If you need a replacement cartridge for an existing Shurflo pump, see the Shurflo Pump Replacement Cartridge.
SKU: 275-4158163E75
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.