The Wacker Neuson Key is a genuine OEM component designed for the PS2-3703, PS3-3703, PS4-3703, PS3-5503, and PS4-5503 series submersible pumps. As a direct OEM part, the is manufactured to the same standards as the original, ensuring a proper fit within the drivetrain assembly. This key covers an extensive range of PS-series pump configurations, including 50 Hz and 60 Hz models across 220V, 440V, 575V, and 400V voltage ratings. Sourcing the correct key keeps your pump running at full capacity and prevents costly drivetrain damage caused by key slippage or failure.
Key Features
- Genuine OEM Construction — Manufactured to the exact dimensional tolerances required for secure shaft-to-hub engagement in Wacker Neuson PS-series submersible pumps.
- Drop-In Replacement — Matches the original keyway slot geometry on the pump shaft, allowing straightforward installation without alteration.
- Broad PS-Series Compatibility — Fits PS2-3703, PS3-3703, PS4-3703, PS3-5503, and PS4-5503 pump models across multiple voltage and frequency configurations.
- Drivetrain Integrity — A correctly seated key locks the impeller or coupling to the shaft, maintaining full torque transfer and preventing slippage under load.
- Corrosion-Resistant Application — Suited for the submerged, high-moisture environment these pumps operate in, where component fit and material integrity are critical to pump longevity.
A shaft key is a small but essential drivetrain component that sits in a machined slot — called a keyway — between a rotating shaft and the hub of a mating component such as an impeller or coupling. Its job is to transmit torque by locking the two parts together so they turn as one unit. When a key wears, shears, or goes missing, the shaft spins independently of the driven component, causing an immediate loss of pumping performance and accelerating wear on both the shaft and hub keyway surfaces.
Part Details
| Part Number | 5000150803 |
|---|---|
| Old Part Number | 0150803 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PS2-3703 | PS23703 | 5000008827, 5000008826, 5000009132, 5000009133, 5000008825, 5000008828, 5000008829, 5000008830, 5000009134, 5000009194 |
| PS3-3703 | PS33703 | 5000008833, 5000008832, 5000009135, 5000009136, 5000008831, 5000008834, 5000008835, 5000008836, 5000009137, 5000009196 |
| PS4-3703 | PS43703 | 5000008839, 5000008838, 5000009138, 5000009139, 5000008837, 5000008840, 5000008841, 5000008842, 5000009140, 5000009198 |
| PS3-5503 | PS35503 | 5000008844, 5000008845, 5000009141, 5000009142, 5000008843, 5000008846, 5000008847, 5000008848, 5000009143, 5000009200 |
| PS4-5503 | PS45503 | 5000008850, 5000008851, 5000009144, 5000009145, 5000008849, 5000008852, 5000008853, 5000008854, 5000009146, 5000009202 |
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.
