The Wacker Neuson Lock Washer is a genuine OEM component designed for the PS2-3703, PS3-3703, PS4-3703, PS3-5503, PS4-5503, PSC31603EX, PSC42303EX, and PSC43803EX submersible pump series. As a direct OEM replacement, this lock washer is produced to the same standards as the original hardware, ensuring correct clamping force and secure fastener retention in demanding wet-environment applications. Sourced directly through authorized Wacker Neuson supply channels, part number is the correct service replacement for all listed PS and PSC series models. Keeping this small but critical component in good condition helps maintain the structural integrity of pump assemblies operating under continuous submersion and vibration.
Key Features
- Genuine OEM Hardware Grade — Manufactured to the same material and dimensional specification as the original, maintaining the correct bite and tension under the fastener loads specific to submersible pump assemblies.
- Drop-In Replacement — Matches the original mounting position and thread engagement, so installation follows standard service procedures without special tooling or fitting adjustments.
- Broad PS and PSC Series Coverage — Confirmed fitment across the PS2-3703, PS3-3703, PS4-3703, PS3-5503, PS4-5503, PSC31603EX, PSC42303EX, and PSC43803EX submersible pump models.
- Vibration and Loosening Resistance — Lock washers in submersible pump assemblies bear constant vibration from the motor and impeller; correct spring tension prevents fastener back-out and keeps critical covers and housings sealed.
- Corrosion-Resistant Construction — Built to hold up in the wet and submerged conditions these pumps operate in, resisting the degradation that causes standard washers to flatten and lose clamping effectiveness over time.
A lock washer is a small but load-bearing fastening component that sits beneath a bolt or nut to resist loosening caused by vibration, torque, and thermal cycling. In submersible pump assemblies like the Wacker Neuson PS and PSC series, these washers secure housings, motor covers, and impeller components that must remain tightly sealed during continuous operation in water. When a lock washer flattens, corrodes, or fails, fasteners can back out gradually, leading to misalignment, seal failure, or water ingress into critical motor components — making timely replacement with the correct OEM part essential to keeping the pump operating as intended.
Part Details
| Part Number | 5000162532 |
|---|---|
| Old Part Number | 0162532 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PS2-3703 | PS23703 | 5000008827, 5000008826, 5000009132, 5000009133 |
| PS3-3703 | PS33703 | 5000008833, 5000008832, 5000009135, 5000009136 |
| PS4-3703 | PS43703 | 5000008839, 5000008838, 5000009138, 5000009139 |
| PS3-5503 | PS35503 | 5000008844, 5000008845, 5000009141, 5000009142 |
| PS4-5503 | PS45503 | 5000008850, 5000008851, 5000009144, 5000009145 |
| 3~Submersible Pumps | PSC31603EX | 5000620471 |
| 3~Submersible Pumps | PSC42303EX | 5000620472 |
| 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.
