Spare Parts for Pumps
Filter and sort
What does the pump spare parts collection include?
This collection brings together original replacement parts for submersible pumps, surface pumps, pool filters, and pressure booster sets. You will find ECDRIVE motors, hydraulic bodies (centrifugal C-SJ and helical HRE), PU units (pump unit) without controller, Shurflo diaphragm and valve kits, housings, pressure switches, O-rings, inline filters, and consumables. These spare parts allow you to restore performance, fix leaks, restore priming, and extend the equipment's lifespan.
Main types
- Motors and drives: Lorentz ECDRIVE (200/600/1800/4000 in C and HRE versions) for PS2/PU solar pumps.
- Hydraulic bodies (PE): ranges C-SJ (3/5/8/12/17/30/42/60) and HRE (03/03H/04/04H/05HL/07/07H/10/14/14H/23/32), for 3" and 4" submersible pumps.
- PU Units (Pump Unit): Lorentz pumps PU600/PU1800/PU4000 and pool filter kits (PU600 CS-17-1, PU1800 CS-37-1) as spare parts when replacement of the hydraulic/motor assembly without electronics is required.
- Shurflo — Series 2088/8000/9300/9325: diaphragms, valves, pressure switches, brushes, housings, and suction filters.
- Consumables and sensors: inline filters, Well Probe borehole probes, Float Switch, Sun Sensor, seals and rings.
Brands and compatibilities (quick guide)
-
Lorentz:
- PS2 = system with controller included (controllers are sold in Accessories).
- PU = pump unit without controller → managed as a spare part in this collection.
- Hydraulic C-SJ (centrifugal) and HRE (helical) for 3"/4"; ECDRIVE motor in C/HRE variants.
-
Shurflo:
- Series 2088 (domestic pressure), 8000 (service/high pressure), 9300/9325 (DC submersibles).
- Verify spare part number (e.g., 94-xxx-xx, 8000-xxx-xxx) and compatible pressure/flow.
- Grundfos SQFlex: specific replacements on request; control units (e.g., CU200) are managed as Accessories.
- ZIRI / Acrosun: spare parts and consumables for solar/hybrid ranges (consult for exact model).
How to identify the correct spare part
- Model and series: locate the equipment nameplate (PS2-xxx, PUxxxx, C-SJx-y, HRE-xx, Shurflo 2088/8000/9300/9325).
- Diameter/fitting: 3" or 4" in submersibles; 1/2"–1-1/2" fittings in pressure/surface/pool filter.
- Hydraulic: centrifugal (C-SJ/CS-F/CPM/QB/SHF) vs. helical (HRE/SH); not interchangeable.
- Electrical: voltage (12/24 V DC / 230 V AC) and type (single/three-phase) when applicable.
- Materials and seals: chemical compatibility (Viton/Santoprene) and service pressure/temperature.
Selection guide table
| Requirement | Recommended spare part | Key checks |
| Restores flow/head in submersible | Hydraulic body PE C-SJ / HRE | Exact series, 3"/4", flow-head curve |
| Damaged motor | ECDRIVE (200/600/1800/4000 · C/HRE) | Voltage/controller, hydraulic coupling |
| PS2 with depleted hydraulics | PU equivalent (pump unit) | Power/code, diameter, hydraulic type |
| Leaks or low pressure in Shurflo pressure | Diaphragm + valves (kit) | Series (2088/8000), cut-off PSI |
| Erratic starts | Pressure switch / gaskets / suction filter | Exact reference, filter cleaning |
Best practices when replacing spare parts
- Always confirm the reference by manual/nameplate and cross-check the code with the listed spare part.
- Replace gaskets and O-rings when opening hydraulics; lubricate with compatible grease.
- For Shurflo, replace the suction filter and check the pressure tank precharge if present.
- After installation, purge air and check for watertightness; verify current/consumption against nominal.
- Protect against dry running with probes/press-control and keep DC/AC protections operational.
Related links
For complete sets, visit Submersible Pumps, Surface Pumps, Pressure Pumps and Pool Filters. Controllers, protections, pressure tanks, and sensors are in Accessories. Return to the overview at Water Pumps.
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