The Wacker Neuson Pinion Gear is a genuine OEM component designed for the PDT2, PDT3, PDI2, and PDI3 series diaphragm trash pumps. Sourced directly through Wacker Neuson's authorized parts network, this pinion gear carries the same specifications as the original part installed at the factory. It is compatible across a broad range of 50mm/2-inch and 75mm/3-inch diaphragm trash pump configurations, including both inline (PDI) and standard (PDT) variants. Always confirm your pump's model number and machine number before ordering to ensure a correct match.
Key Features
- Genuine OEM Gear Tolerancing — Machined to the exact tooth profile and dimensional spec of the original, ensuring proper mesh with mating drive components inside the pump.
- Direct-Fit Replacement — Drops into the existing gear drive assembly of compatible PDT and PDI pumps without modification to surrounding components.
- Broad Series Compatibility — Fits PDT2, PDT2A, PDT2B, PDT3, PDT3A, PDI2, PDI2A, PDI3, and PDI3A series diaphragm trash pumps across multiple machine configurations.
- Sustains Pump Stroke Timing — The pinion gear drives the diaphragm actuation mechanism; a worn or damaged gear causes erratic stroke timing, reduced flow rate, and pump failure under load.
- Backed by Wacker Neuson OEM Standards — As a genuine part, the 5000089216 meets the material hardness and load-bearing requirements set for the diaphragm pump drive train.
The pinion gear is a core element of the drive mechanism in a diaphragm trash pump. It transfers rotational power from the engine-driven crankshaft or drive shaft into the reciprocating motion that actuates the diaphragm, which in turn creates the suction and discharge action that moves fluid through the pump. If the pinion gear wears, chips, or loses tooth integrity, the diaphragm stroke becomes inconsistent, output pressure drops, and in severe cases the pump will stop priming altogether. Replacing a damaged pinion gear with a correctly specified OEM part restores full pumping capacity and protects the surrounding gear train from secondary wear.
Part Details
| Part Number | 5000089216 |
|---|---|
| Old Part Number | 0089216 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pinion 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 |
| 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.
