The Wacker Neuson Gearbox Complete is a genuine OEM component designed for the PDT and PDI series diaphragm pumps, including the PDT2A, PDT2, PDI2A(I), PDT3A, PDT3, PDI3A, and PDI3A(I) models. As a direct OEM replacement, this gearbox assembly is sourced from Wacker Neuson and built to the same specifications as the original unit installed at the factory. Confirmed fitment spans both the 2-inch and 3-inch diaphragm pump families, covering a wide range of jobsite dewatering configurations. When your pump's gearbox shows signs of wear, noise, or output loss, replacing it with part number restores full mechanical drive performance quickly and with confidence.
Key Features
- OEM-Matched Drive Tolerances — Manufactured to Wacker Neuson's original gear mesh and torque specifications, ensuring the diaphragm is driven at the correct stroke rate for rated pump output.
- Complete Drop-In Assembly — Supplied as a fully assembled gearbox unit, so installation replaces the entire drive assembly in one step without sourcing individual internal components.
- Broad PDT/PDI Series Coverage — Fits PDT2A, PDT2, PDI2A(I), PDT3A, PDT3, PDI3A, and PDI3A(I) diaphragm pumps, covering both 2-inch and 3-inch displacement configurations.
- Restores Full Pumping Capacity — A worn or failed gearbox reduces diaphragm stroke efficiency, cutting flow rate and lift performance; a fresh OEM unit brings pump output back to specification.
- Genuine Wacker Neuson Part — Supplied as an authentic OEM component under part number 5000180297, backed by Wacker Neuson's parts program for traceability and quality assurance.
The gearbox in a diaphragm pump converts engine or motor rotation into the reciprocating mechanical motion that drives the diaphragm back and forth, creating the pressure differential that moves fluid through the pump. It is the core mechanical link between the power source and the pumping action — without a properly functioning gearbox, the diaphragm cannot complete a full, consistent stroke, resulting in reduced flow, loss of prime, or complete pump failure. Over time, gear wear, lubrication breakdown, or impact damage can degrade gearbox performance, making timely replacement essential to keeping dewatering operations running at full capacity.
Part Details
| Part Number | 5000180297 |
|---|---|
| Old Part Number | 0180297 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Gearbox Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PDT2A | PDT2A | 5000620769 |
| PDT2 Pump, Diaphragm | PDT2 | 5000620770 |
| PDI2A(I) | PDI2A(I) | 5000620772 |
| PDT3A | PDT3A | 5000620773 |
| PDT3 | PDT3 | 5000620774 |
| PDI3A | PDI3A | 5000620775 |
| PDI3A(I) | PDI3A(I) | 5000620776 |
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.
