The Wacker Neuson Fitting Key is a genuine OEM component designed for the PDT2, PDT3, PDI2, and PDI3 series diaphragm trash pumps. As a direct OEM part, the is manufactured to the exact specifications required by Wacker Neuson, ensuring proper alignment and secure assembly within the pump's drive train. This Fitting Key is compatible across a broad range of 50mm/2in and 75mm/3in diaphragm and inline diaphragm trash pump configurations within the PDT and PDI families.
Key Features
- Genuine OEM Specification: — Manufactured to exact Wacker Neuson tolerances, ensuring the key seats correctly in the keyway without play or slippage under load.
- Direct Drop-In Installation: — Engineered to match the original keyway geometry of the pump shaft, allowing straightforward installation without machining or modification.
- Broad PDT and PDI Series Coverage: — Compatible with PDT2, PDT3, PDI2, and PDI3 pump models in both standard and inline configurations, spanning 50mm/2in and 75mm/3in discharge sizes.
- Maintains Drive Train Integrity: — A correctly fitted key locks the drive component to the shaft, preventing rotational slip that can cause accelerated wear or complete pump failure.
- OEM Part Number Traceability: — Sourced and catalogued under Wacker Neuson part number 5000051333 for straightforward verification against your pump's parts diagram.
A fitting key is a small but critical component in a pump's drive assembly. It sits in a machined slot — the keyway — between the shaft and a rotating component such as a drive hub or impeller, locking them together so that rotational force is transmitted without slipping. When a fitting key shears, deforms, or goes missing, the shaft spins independently of the driven component, causing the pump to lose output entirely or operate erratically. Replacing a worn or damaged fitting key promptly restores full power transfer and protects surrounding shaft and hub surfaces from secondary damage.
Part Details
| Part Number | 5000051333 |
|---|---|
| Old Part Number | 0051333 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fitting Key |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 50mm/2in Diaphragm Trash Pump | PDT2A | 5000007610, 5000007611 |
| 75mm/3in Diaphragm Trash Pump | PDT3A | 5000007614, 5000007615, 5000007616 |
| 50mm/2in Inline Diaphragm Tras h Pump | PDI2A | 5000007624, 5000007625 |
| 75mm/3in Inline Diaphragm Tras h Pump | PDI3A | 5000007628, 5000007629, 5000009407 |
| 50mm/2in Diaphragm Trash Pump | PDT2 | 5000009494, 5000007633 |
| 75mm/3in Diaphragm Trash Pumps | PDT3 | 5000009495, 5000007619 |
| 50mm/2in Diaphragm Trash Pump | PDI2 | 5000009489 |
| 75mm/3in Diaphragm Pump | PD3B | 5000006802 |
| 50mm/2in Diaphragm Trash Pump | PDT2B | 5000007612, 5000007613 |
| 75mm/3in Diaphragm Trash Pump | PDI3 | 5000009491, 5000009492 |
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.
