The Wacker Neuson Key A4 X 4 X 14 is a genuine OEM component designed for the BTS 13 and BTS 11 cut-off saws and the AS50 battery rammer. Sourced directly from Wacker Neuson, this key meets the exact dimensional and material standards of the original part, ensuring a correct, interference-free fit in the keyway. Confirmed fitment spans the BTS 13 (1-inch arbor), BTS 11 (7/8-inch arbor), and AS50e battery rammer platforms, making a versatile service part to keep on the shelf.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to Wacker Neuson's exact A4 x 4 x 14 profile, so the key seats fully in the keyway without play or shimming.
- Drop-In Keyway Replacement — Matches the original slot geometry on BTS and AS50 shafts for a straightforward swap with standard hand tools.
- Broad Fitment Across Two Machine Types — Covers the BTS 13 cut-off saw (1-inch arbor), BTS 11 cut-off saw (7/8-inch arbor), and the AS50 battery rammer in a single part number.
- Positive Power Transmission — A correctly fitted key locks the blade hub or drive component to the shaft, transferring torque without slippage and maintaining consistent cutting or compaction output.
- Blade Retention Safety — On cut-off saws, a worn or missing key allows the arbor hub to rotate independently of the shaft — a direct blade-retention hazard. Replacing with the correct OEM key restores the mechanical lock that keeps the blade secured during operation.
A key is a small rectangular metal insert that fits into matching slots — called keyways — cut into both a shaft and a hub or pulley. Its job is to create a positive mechanical connection between the two components, so rotational force (torque) from the shaft is transmitted directly to the mounted part rather than allowing it to spin freely. When a key shears, deforms, or goes missing, the driven component loses its positive drive connection — on a cut-off saw this can mean blade slippage or detachment, and on a rammer it results in lost compaction force and potential driveline damage. Replacing a worn key promptly with the correct OEM part restores the mechanical lock and keeps the drivetrain operating as designed.
Part Details
| Part Number | 5002006053 |
|---|---|
| Old Part Number | 2006053 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Key A4 X 4 X 14 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Cut-off Saw with 1in Arbor | BTS 13 | 5000007338 |
| Cut-off saw with 7/8in Arbor | BTS 11 | 5000007421 |
| Battery rammer AS50e | AS50 | 5100003033 |
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.
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