The Wacker Neuson Parallel Key 5 x 5 x 38 is a genuine OEM component designed for BFS735 gasoline-powered floor saws and RS600 series walk-behind rollers. Sourced directly from Wacker Neuson, this keyed fastener meets the exact dimensional and material standards specified for these machines — no guesswork on fitment. Compatible across multiple BFS735 and RS600A variants, the is a straightforward drop-in replacement that restores proper shaft-to-hub engagement. Keep a spare on hand to avoid unnecessary downtime on the saw or roller when routine drivetrain servicing is due.
Key Features
- Exact OEM Dimensions — Manufactured to the precise 5 x 5 x 38 mm profile specified by Wacker Neuson, ensuring correct seating depth and load distribution in the keyway.
- Genuine Wacker Neuson Part — Supplied as an authentic OEM component, so material hardness and shear strength match the original specification for this drivetrain application.
- Broad Model Coverage — Fits BFS735 floor saw variants and RS600 / RS600A walk-behind vibratory rollers, covering a wide range of Wacker Neuson jobsite equipment.
- Positive Power Transfer — A correctly fitted parallel key locks the shaft and hub together to transmit torque without slippage; a worn or missing key causes vibration, component damage, and loss of drive.
- Direct Replacement Installation — Slides into the existing keyway slot on the shaft without machining or modification, making swaps fast during scheduled maintenance or field repairs.
A parallel key is a small but critical drivetrain component that sits in a machined slot — called a keyway — cut into both a rotating shaft and its mating hub or pulley. Its job is to lock the two parts together rotationally so that torque from the engine or motor is transferred cleanly without the hub spinning freely on the shaft. When a parallel key shears, wears, or goes missing, the connected component loses drive entirely, often presenting as a spinning shaft with no blade or drum movement. Replacing a worn key promptly protects the keyway surfaces from further damage and restores full power transfer to the machine.
Part Details
| Part Number | 5000401860 |
|---|---|
| Old Part Number | 0401860 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Parallel Key 5 x 5 x 38 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BFS735 | BFS735 | 5100029228, 5100054573 |
| Walk-behind Rollers | RS600 | 5000630194, 5000630136 |
| BFS735 | BFS735 CN | 5100042681 |
| Single Drum Vibratory Roller | RS600A | 5000630010 |
| Gasoline Powered Floor Saw | BFS 735A | 5100001816 |
| Floor saw BFS735 | BFS 735 | 5100009932 |
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.
