The Wacker Neuson is a genuine OEM Key 3/16 x 3/16 x.875 designed for the PT2R and PTK2 50mm/2in Centrifugal Trash Pump series. As a direct Wacker Neuson OEM component, part is manufactured to the exact dimensions required for proper shaft and impeller engagement in these pumps. This key is an essential drivetrain component — if it shears or wears, the pump loses drive and stops moving water entirely. Keeping a spare on hand means you can restore full pump operation quickly when it counts most.
Key Features
- Exact OEM Dimensions — Precision-cut to 3/16 x 3/16 x .875 inches, ensuring correct interference fit and full torque transfer between shaft and driven component.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, this component meets the same material hardness and shear-strength specifications as the original installed part.
- Direct Drop-In Replacement — Seats into the existing keyway on the PT2R and PTK2 pump shafts without machining or modification to the keyway slot.
- Confirmed Fitment — Compatible with PT2R (machine nos. 5000007160 and 5000006790) and PTK2 (machine no. 5000006767) 50mm/2in Centrifugal Trash Pumps.
- Protects Drivetrain Components — A correctly fitted key prevents relative rotation between shaft and hub, protecting the impeller, shaft, and surrounding components from costly damage caused by slippage.
- Low-Cost Insurance — At minimal cost per unit, stocking this small but critical part eliminates extended downtime caused by a single sheared key on a busy pump.
A shaft key is a small rectangular piece of metal that locks a rotating component — such as an impeller or pulley — to its drive shaft, preventing the hub from spinning independently on the shaft. In a centrifugal trash pump like the PT2R or PTK2, the key transmits engine torque directly to the impeller, which is what moves water through the pump. When the key shears or wears, the impeller freewheels on the shaft and the pump produces no flow, even though the engine continues to run — making fast identification and replacement of this part essential to restoring pump performance.
Part Details
| Part Number | 5000110522 |
|---|---|
| Old Part Number | 0110522 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Key 3/16 x 3/16 x .875 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 50mm/2in Centrifugal Trash Pum p | PT2R | 5000007160, 5000006790 |
| 50mm/2in Centrifugal Trash Pum p (without engine) | PTK2 | 5000006767 |
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.
