The Wacker Neuson Special Key A12 X 8 X 50 is a genuine OEM component designed for the PT6Y and PT6YT series trash pumps. Sourced directly from Wacker Neuson, this part meets the same specifications as the original, ensuring a proper fit the first time. It is compatible across multiple PT6Y configurations, including the PT6Y-AU, PT6YT-IN, and PT6Y EPA T4 variants.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to the exact A12 x 8 x 50 profile, ensuring correct key-to-shaft engagement without the need for filing or adjustment.
- Drop-In Shaft Fit — Engineered to seat precisely in the keyway of PT6Y and PT6YT series pump shafts, aligning drive components correctly on installation.
- Broad PT6Y Series Coverage — A single part number covers PT6Y, PT6YT, PT6Y-AU, PT6YT-IN, and PT6Y EPA T4 models, simplifying parts procurement across your fleet.
- Torque Transfer Integrity — A correctly fitted key locks the impeller or drive component to the shaft, ensuring full power transfer and preventing slippage under load.
- Direct Wacker Neuson Sourcing — Supplied as a genuine OEM part, this key matches the hardness grade and tolerancing of the component it replaces, protecting shaft and hub surfaces.
A special key is a precision-machined drive component that fits into a machined slot — called a keyway — between a rotating shaft and a hub or impeller, locking the two together so they turn as a single unit. On trash pumps like the PT6Y series, the key transmits torque from the engine shaft to the pump impeller, making it essential for efficient water movement. If the key shears, wears, or goes missing, the shaft will spin freely inside the hub, the impeller stops turning, and the pump loses all discharge capacity — making prompt replacement critical to getting the machine back to work.
Part Details
| Part Number | 5100076962 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Special Key A12 X 8 X 50 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT6Y | PT6Y-SA | 5100070835 |
| PT6YT | PT6YT | 5100070966 |
| PUMP PT6Y-AU | PT6Y-AU | 5100076956 |
| PT6YT | PT6YT-IN | 5100077923 |
| PT6Y | PT6Y | 5100064168, 5100069617 |
| PT6Y | PT6Y EPA T4 | 5100073464 |
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.
