The Wacker Neuson Pinion Gear is a genuine OEM component designed for the PDT2A, PDT2, PDT3A, PDT3, PDI2A(I), PDI3A, and PDI3A(I) diaphragm pump series. Sourced directly from Wacker Neuson, this part is manufactured to the same specifications as the original, ensuring a direct, trouble-free installation into the pump's drive assembly. Confirmed fitment spans both 2-inch and 3-inch diaphragm pump models across the PDT and PDI families, making a versatile stocking part for pump service and repair.
Key Features
- Genuine OEM Gear Tooth Accuracy — Machined to the original tooth profile and pitch, ensuring correct mesh with mating drive components and smooth, low-wear power transfer.
- Drop-In Drive Assembly Fit — Engineered to the exact shaft and bore dimensions of the original, so the gear seats and secures without modification to the pump housing or drive train.
- Broad PDT and PDI Family Coverage — A single part number covers 2-inch and 3-inch models across the PDT2A, PDT2, PDT3A, PDT3, PDI2A(I), PDI3A, and PDI3A(I) diaphragm pump lines.
- Sustained Pumping Output — A correctly meshed pinion gear maintains consistent diaphragm stroke rate, preserving rated flow volume and pressure; a worn or chipped gear causes erratic output and accelerated wear on surrounding components.
- Verified OEM Part Number — Part number 5000180286 matches Wacker Neuson's official parts documentation, so you can order with confidence and avoid costly mis-fit returns.
The pinion gear is a core element of the diaphragm pump's mechanical drive train, transmitting rotational power from the engine or motor to the eccentric mechanism that drives the diaphragm back and forth. This reciprocating action is what creates the suction and discharge strokes responsible for moving fluid through the pump. When the pinion gear wears down, chips, or develops excessive backlash, the diaphragm stroke becomes inconsistent, leading to reduced flow rates, increased vibration, and potential damage to the surrounding gear housing and drive shaft components.
Part Details
| Part Number | 5000180286 |
|---|---|
| Old Part Number | 0180286 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pinion Gear |
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.
