The Wacker Neuson is a genuine OEM Square Key 3/16 X 2-7/8 designed for CT36 and CT48 series walk-behind concrete power trowels. As a direct OEM replacement, part is produced to the exact dimensions required for correct installation in these machines — no guesswork on sizing or fit. This key services multiple CT36 variants including the CT36-5A, CT36-6, CT36-X, CT36-X-C, and CT36-5A-C, as well as the CT48-8A, covering both standard and EU-spec configurations. When you need to get your trowel back into service with a part sourced straight from the manufacturer, the is the correct choice.
Key Features
- Exact OEM Dimensions — Manufactured to the precise 3/16 x 2-7/8 specification, ensuring correct torque transfer without slop or play in the keyway.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, this square key meets the same material hardness and dimensional tolerances as the original component.
- Broad CT Series Coverage — Fits CT36-5A, CT36-6, CT36-X, CT36-X-C, CT36-5A-C, and CT48-8A trowels, including EU-spec and adjustable-handle variants.
- Positive Power Transmission — A properly sized square key locks the rotating shaft and driven component together; a worn or incorrectly sized key causes slippage, vibration, and accelerated wear to both mating parts.
- Drop-In Service Part — Straightforward keyway installation makes this a standard part of any trowel drivetrain service or shaft replacement procedure.
A square key is a small but critical drivetrain component that sits in a machined slot — called a keyway — between a rotating shaft and a hub, pulley, or gear. Its job is to transmit rotational torque between the two parts so they turn as one unit. When a square key wears, shears, or goes missing, the driven component can spin freely on the shaft, causing the trowel to lose power delivery and potentially damaging the shaft or hub through fretting. Replacing a worn key promptly protects the surrounding drivetrain components and restores full power transfer to the trowel blades.
Part Details
| Part Number | 5000161464 |
|---|---|
| Old Part Number | 0161464 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Square Key 3/16 X 2-7/8 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| CT48-8A Trowel | CT48-8A | 5000009449 |
| CT48-8A | CT48-8A EU | 5000620837 |
| CT36-5A Trowel | CT36-5A | 5000009438, 5200016256 |
| CT36-5A | CT36-5A EU | 5000620829 |
| CT36-5A-C Trowel | CT36-5A-C | 5000620040 |
| CT36-6 Trowel | CT36-6 | 5000009443, 5000620830 |
| 915mm/36in, Walk-Behind Trowel | CT36-X | 5000620036 |
| 915mm/36in, Walk-behind Trowel | CT36-X-C | 5000620039, 5200015336 |
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.
