Flojet 12V RV freshwater pressure pumpPart number: R3526144D
View productFlojet R3526144D RV Water Pump — Exploded Parts & Fittings
The Flojet R3526144D is an automatic 12-volt RV freshwater pressure pump with an internal bypass and integrated pressure switch. Flojet specifies approximately 3 gallons per minute open flow and a 50 PSI pressure-switch shutoff. Its quick-connect ports, included fittings and inlet strainer are distinct components; identifying the connection type matters when repairing or replacing the pump.
See the pump and related water-system parts
Flojet 12V RV freshwater pressure pump
Flojet freshwater accumulator tankPart number: 305730004A
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Flojet ½-inch inline hose-barb pump strainerPart number: 01740002A
View productR3526144D factory specifications
| Specification | Flojet R3526144D |
|---|---|
| Electrical supply | 12V DC, 9–13.6V operating range |
| Current and circuit protection | Up to 7.5A at 50 PSI; manufacturer specifies a 15A fuse |
| Pump construction | Three-chamber diaphragm, internal bypass and thermally protected motor |
| Pressure switch | 50 PSI shutoff |
| Priming | Up to 8 feet dry prime under the factory conditions |
| Connections | Quick-connect pump ports with supplied hose-barb and threaded fitting options |
| Supplied strainer | 40-mesh inline quick-connect strainer |
Find the original pump repair components
Flojet's factory exploded drawing lists five service assemblies, each with a separate part number. Confirm your original pump label reads R3526144D before selecting a switch, valve or pumphead component.
| Drawing # | Factory part number | What it includes or replaces |
|---|---|---|
| 1 | 21000407A | Pump port-retaining clips; two clips per kit |
| 2 | 02091050 | Pressure-switch kit with cover and switch diaphragm |
| 3 | 20407034 | Check-valve housing with suction and discharge valves installed |
| 4 | 20406045A | Pumphead assembly including switch, upper housing, valve and drive assemblies |
| 5 | 20717001A | Four rubber mounting feet for vibration isolation |
Where each service part belongs
Pump inlet and port clips
Retain the correct quick-connect fitting and inlet strainer.
Switch and valve assembly
Controls demand operation and directs flow through the pumphead.
Diaphragm/drive assembly
Moves water through the three pumping chambers.
Motor and rubber feet
Drives the pump while the feet reduce transmitted vibration.
Strainers, adapters and accumulators
The factory pump package uses a quick-connect, 40-mesh inline strainer. The separately sold 01740002A is a straight ½-inch hose-barb strainer for compatible hose plumbing; it is not the same attachment as the included quick-connect strainer. Match your existing hoses and port fittings before substituting an accessory.
The separately available 305730004A accumulator may help smooth flow in a compatible pressure-switch system. Flojet advises against using a traditional accumulator with a variable-speed pump. Confirm the plumbing and available mounting space before adding one.
Before electrical or plumbing repairs
- Disconnect the 12-volt supply and release system water pressure before removing fittings or opening the pumphead.
- Match the model number, port type, wiring and switch settings before installing a replacement.
- Keep an appropriate inlet strainer fitted upstream of the pump to protect the check valves and switch from debris.
- Install the correct fuse, secure the mounting feet, inspect for leaks and test the pump after reassembly.
Flojet manufacturer drawings and specifications
The original Flojet R3526144D service reference identifies the five pump assemblies listed above. See Flojet's RV water-system pump documentation and technical drawings for the current model family.
The Flojet RV pump technical documentation also includes the pump dimensions, hydraulic performance and supplied fitting details.
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