The Wacker Neuson Flexshaft Core Sm9S is a genuine OEM component designed for the M2000, M3000, A5000, A1500, L5000, and D4000 series electrical, gasoline, diesel, and battery-powered internal vibrator power units. As a direct OEM replacement, part is manufactured to the same specifications as the original, ensuring correct torque transmission between the power unit and the vibrator head. This core is compatible across a wide range of Wacker Neuson internal vibrator drive configurations, including 120V, 230V, and ISO/ANSI variants, making it a versatile stock item for contractors and rental fleets running multiple vibrator setups.
Key Features
- OEM Torque Transmission Integrity — Engineered to the original torsional spec, ensuring full power transfer from the drive unit to the vibrator head without slip or energy loss.
- Direct Drop-In Replacement — Matches the original Sm9S core diameter and end fitting interface, so it seats correctly in the flexshaft housing without modification to the drive unit or hose assembly.
- Broad Power Unit Compatibility — Fits M2000, M3000, A5000, A1500, L5000, and D4000 power units across electric (120V/230V), gasoline, diesel, and battery drive configurations.
- Sustained Concrete Consolidation Performance — A worn or broken flexshaft core causes the vibrator head to lose rotation speed or stop entirely; replacing it restores full consolidation output and prevents honeycombing in poured concrete.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, part number 5000085861 carries the full backing of the OEM supply chain for quality assurance and traceability.
The flexshaft core is the rotating inner cable that runs through the flexible hose connecting the power unit to the concrete vibrator head. It transmits the rotational force generated by the motor directly to the eccentric weight inside the vibrator head, which is what creates the high-frequency vibration needed to consolidate freshly poured concrete. When the core becomes kinked, fatigued, or broken, the vibrator head stops spinning — halting consolidation and risking structural voids in the concrete pour. Regular inspection and timely replacement of the Sm9S core keeps the vibrator system operating at rated frequency and amplitude.
Part Details
| Part Number | 5000085861 |
|---|---|
| Old Part Number | 0085861 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flexshaft Core Sm9S |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Electrical Power Unit for Inte rnal Vibrator | M3000/230 | 5000005800 |
| Electrical Power Unit | M2000/120 | 5000007653 |
| Electrical Power Unit for Inte rnal Vibrator | M3000/120/nonCUL | 5000005845 |
| Electrical Power Unit for Inte rnal Vibrator | M2000/115/15A | 5000006305 |
| Electrical Power Unit | M2000/120/nonCUL | 5000007159 |
| Electrical Power Unit for Inte rnal Vibrator | M2000/230/RFI | 5000005495 |
| Electrical Power Unit for Inte rnal Vibrator | M2000/230/n Gr | 5000006551 |
| M3000/230/RFI | M3000/230/RFI | 5000006590 |
| Diesel Power Unit for Internal Vibrator | D4000 | 5000009091 |
| A5000/160 ISO | A5000/160 ISO | 5000610325 |
| A5000/160 ANSI | A5000/160 ANSI | 5000610340 |
| Gasoline Power Unit for Intern al Vibrator | A5000 | 5000009213 |
| L5000/225 ISO | L5000/225 ISO | 5000610329 |
| A1500-POWER UNIT,HONDA,35CC | A1500/035 ISO | 5000610324 |
| A1500 POWER UNIT, HONDA | A1500/035 ANSI | 5000610339 |
| L5000/225 ANSI | L5000/225 ANSI | 5000610341 |
| Drive Engine | M2000/120/UL | 5100006159 |
| Drive Engine | M3000/120/UL | 5100006160 |
| A5000/160B | A5000/160B | 5100068212 |
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.
