The Wacker Neuson Gear is a genuine OEM component designed for the PDT2, PDT3, PDI2, PDI3, and PD3B series diaphragm trash pumps. As a direct factory replacement, this gear is built to the exact tolerances required by Wacker Neuson's diaphragm pump drive systems, ensuring consistent, dependable operation across both 2-inch and 3-inch pump configurations. Compatible across a wide range of PDT and PDI model variants, part number is the correct replacement when the original gear shows wear or damage. Sourcing the genuine OEM part means no guesswork on fit or geometry — the drops straight into the drive assembly without modification.
Key Features
- Genuine OEM Tooth Profile: — Manufactured to Wacker Neuson's exact gear geometry, ensuring proper mesh and torque transfer within the pump's drive mechanism.
- Direct Drive Assembly Replacement: — Engineered to seat directly into the existing drive housing on PDT and PDI series pumps, maintaining correct shaft alignment and engagement.
- Broad PDT & PDI Series Coverage: — Fits PDT2, PDT2A, PDT2B, PDT3, PDT3A, PDI2, PDI2A, PDI3, PDI3A, and PD3B diaphragm pump models in both 50mm/2-inch and 75mm/3-inch configurations.
- Sustained Pump Output: — A correctly functioning gear maintains the drive cadence that powers the diaphragm stroke; a worn or skipped gear leads to reduced flow, erratic pumping, or complete loss of prime.
- Verified Wacker Neuson Part Number: — Listed under OEM part number 5000051338, eliminating compatibility uncertainty when ordering for multiple pump variants on the same jobsite.
The gear in a diaphragm pump is part of the mechanical drive train that converts engine or motor rotation into the reciprocating action that moves the diaphragm back and forth. This back-and-forth movement creates the suction and discharge strokes that pull fluid into the pump body and push it out through the discharge port. When the gear wears down, loses teeth, or develops play in the mesh, the diaphragm stroke becomes inconsistent — resulting in reduced flow rate, loss of suction, or complete pump failure. Replacing the gear with a correctly profiled OEM part restores the drive train to its original mechanical advantage and keeps the pump operating at rated capacity.
Part Details
| Part Number | 5000051338 |
|---|---|
| Old Part Number | 0051338 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gear |
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.
