The Wacker Neuson Crank Arm is a genuine OEM component designed for the PDT2A, PDT2, and PDI2A(I) diaphragm pump series. Sourced directly from Wacker Neuson, this part carries the same specifications as the original installed at the factory. It is a verified direct replacement for all listed PDT2 and PDI2A(I) pump configurations, ensuring the drivetrain geometry stays true to the original design. If your pump is losing stroke consistency or showing irregular diaphragm movement, the crank arm is a primary component to inspect and replace.
Key Features
- Genuine OEM Precision: — Manufactured to exact Wacker Neuson tolerances, ensuring the crank arm delivers consistent stroke length and correct diaphragm actuation every cycle.
- Direct Drop-In Replacement: — Engineered to match the original mounting points and pin dimensions on PDT2A, PDT2, and PDI2A(I) pumps, so installation follows the standard service procedure.
- Verified Fitment: — Confirmed compatible with PDT2A, PDT2 Diaphragm Pump, and PDI2A(I) pump models — cross-reference part number 5000179873 before ordering.
- Restores Full Pumping Stroke: — A worn or damaged crank arm causes reduced flow rate and inconsistent diaphragm movement; replacing it brings output back to rated capacity.
- Built for Continuous Duty: — Diaphragm pumps operate under constant reciprocating load; this OEM crank arm is built from the same material grade as the original to handle that sustained mechanical stress.
The crank arm is the mechanical link between the pump's drive shaft and the diaphragm assembly. As the drive shaft rotates, the crank arm converts that rotational motion into the back-and-forth linear movement that actuates the diaphragm and moves fluid through the pump. When the crank arm wears or fails, stroke travel becomes inconsistent, leading to reduced flow, pressure loss, or complete pump stoppage. Replacing it with the correct OEM part restores full pumping performance and protects the surrounding drivetrain components from the irregular loads a damaged arm can introduce.
Part Details
| Part Number | 5000179873 |
|---|---|
| Old Part Number | 0179873 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crank Arm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PDT2A | PDT2A | 5000620769 |
| PDT2 Pump, Diaphragm | PDT2 | 5000620770 |
| PDI2A(I) | PDI2A(I) | 5000620772 |
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.
