The Wacker Neuson Locking Ring is a genuine OEM Locking Ring designed for the PS4-7503HH, PS4-7503HF, PS4-11003HH, and PS4-11003HF series 100mm/4-inch submersible pumps. Sourced directly from Wacker Neuson, this part meets the exact specifications of the original component installed at the factory. It fits across a wide range of PS4 submersible pump configurations spanning 50Hz and 60Hz voltages from 220V through 575V, as well as PSC43703 and PSC43803EX three-phase submersible pump models. Confirm your machine number against the full fitment list to ensure a correct match before ordering.
Key Features
- Genuine OEM Construction — Manufactured to the exact dimensional tolerances required for secure engagement in Wacker Neuson PS4-series submersible pump assemblies.
- Direct-Swap Installation — Engineered to seat and lock exactly as the original, with no reworking of mating surfaces or hardware needed.
- Broad PS4 Series Coverage — Confirmed fitment across PS4-7503HH, PS4-7503HF, PS4-11003HH, PS4-11003HF, PSC43703, and PSC43803EX submersible pump models in multiple voltage configurations.
- Structural Integrity Under Load — A correctly functioning locking ring holds critical pump components in alignment under continuous submersed operation; a worn or failed ring can allow axial movement that leads to accelerated wear or pump failure.
- Verified Part Number — Ordering by Wacker Neuson part number 5000150799 ensures you receive the correct ring for your specific pump model and voltage configuration.
A locking ring in a submersible pump serves as a retention and alignment component, securing internal assemblies — such as the motor housing, impeller stack, or seal carrier — so they remain correctly positioned during operation. When submerged and running under load, even slight axial or radial movement of these components can cause vibration, seal leakage, or accelerated wear on the impeller and volute. A damaged or missing locking ring compromises the structural integrity of the pump assembly, which can result in reduced flow output, seal failure, and ultimately a pump that cannot be brought back online without more extensive repair.
Part Details
| Part Number | 5000150799 |
|---|---|
| Old Part Number | 0150799 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Locking Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PS4-7503HH | PS47503HH | 5000008856, 5000009147, 5000009148, 5000008855, 5000008858, 5000008859, 5000008860, 5000009149, 5000009204 |
| PS4-7503HF | PS47503HF | 5000008862, 5000008863, 5000008866, 5000009150, 5000009151, 5000008861, 5000008864, 5000008865, 5000009152, 5000009206 |
| PS4-11003HH | PS411003HH | 5000008876, 5000009153, 5000009154, 5000008867, 5000008869, 5000008870, 5000008877, 5000009155, 5000009208 |
| PS4-11003HF | PS411003HF | 5000008878, 5000009156, 5000009157, 5000008871, 5000008873, 5000008874, 5000008879, 5000009158, 5000009210 |
| 3~Submersible Pumps | PSC43703 | 5000620470 |
| 3~Submersible Pumps | PSC43803EX | 5000620473 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
