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08 Oct
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08 Oct
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Description
Returns
A higher-flow freshwater pump for a system that needs 25psi.
The narrowboat job
The Jabsco Par-Max HD4 Q401J-112S-3A supplies a compatible onboard freshwater pressure system. Its higher open-flow capacity can support a system with greater water demand, but the 25psi pressure setting still needs to match your water heater and plumbing.
Key details
- Model: Q401J-112S-3A; 12V DC.
- Open flow: 15.1 litres/minute; pressure-switch cut-off: 25psi.
- Four-chamber diaphragm with internal bypass.
- Self-priming up to 2.4m; run-dry capable.
- Thermal motor protection and vibration-dampening mounting.
Included with this model
- Pump.
- Two straight ½″ / 13mm hose-barb port fittings.
- 40-mesh inline quick-connect strainer.
Replacement and service checks
Jabsco lists this model as a replacement for 31620-0292 and 32600-0092, with 82400-0392, 82500-0392 and 82600-0392 described as closest matches. Check the actual installation, connections and pressure requirements before swapping.
- Port clips: 30647-1000.
- Switch kit: 16470-0025.
- Check-valve assembly: 18753-0731.
- Diaphragm/drive assembly: 18753-0730.
- Baseplate/mounting feet: 18753-0729.
Complete the job
Allow access for the port clips and strainer. Check the suction line for leaks and restrictions, follow the model’s installation instructions, and test the water system after fitting. This pressure-pump model is for freshwater delivery; do not assume suitability for shower waste or bilge duty from the Par-Max family name.
All our products have a 90 day return money back guarantee. Just keep hold of your receipt and we can issue a refund for any mistakenly ordered items
