The Wacker Neuson Flywheel is a genuine OEM component designed for a broad range of Wacker Neuson equipment, including the CT36BDT and CT36BDT-E 915mm/36in walk-behind concrete trowels, PT2B 2-inch centrifugal trash pump, PD3B 3-inch diaphragm pump, and B 3000 and B 5000 gasoline power units for internal vibrators. As a direct factory replacement, this flywheel is manufactured to the same specifications as the original part, ensuring consistent engine performance and reliable ignition timing across every application it fits. Whether you are servicing a concrete finishing machine or a pump unit, part number delivers the exact form and fit the original build requires. Keep this part number on hand — it covers multiple machine families, making it a versatile addition to any Wacker Neuson service inventory.
Key Features
- Genuine OEM Mass and Balance Spec — Manufactured to the original rotational mass and balance tolerances, ensuring smooth engine operation and correct ignition timing at all RPMs.
- Direct Drop-In Replacement — Machined to match original shaft taper, keyway, and bolt pattern, so installation aligns with the existing crankshaft and magneto setup without rework.
- Wide Fitment Coverage — A single part number covers the CT36BDT and CT36BDT-E walk-behind trowels, PT2B and PD3B pumps, and B 3000/B 5000 gasoline power units — simplifying parts sourcing across your fleet.
- Consistent Ignition Performance — A properly balanced flywheel maintains the correct air gap relationship with the ignition coil; a worn or cracked flywheel can cause misfires, hard starts, or complete no-start conditions.
- Sourced from Wacker Neuson — Supplied as genuine OEM stock, so the part carries the same quality assurance as the component that left the factory with the machine.
The flywheel is a heavy rotating disc bolted directly to the engine crankshaft. Its primary job is to store rotational energy between power strokes, keeping the engine turning smoothly and providing the steady momentum needed to drive ancillary components. On most small gasoline engines, the flywheel also carries the permanent magnets that pass the ignition coil to generate the spark — meaning flywheel condition directly affects ignition reliability. When a flywheel is cracked, has a damaged keyway, or loses magnetic strength, the result is typically a weak spark, inconsistent timing, rough running, or a no-start condition that cannot be resolved by adjusting the coil or replacing the plug alone.
Part Details
| Part Number | 5000039320 |
|---|---|
| Old Part Number | 0039320 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flywheel |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 915mm/36in Walk-behind Trowel | CT36BDT | 5000008009 |
| 50mm/2in Centrifugal Trash Pum p | PT2B | 5000006722 |
| Gasoline Power Unit for Intern al Vibrator | B 3000 | 5000005829 |
| Gasoline Power Unit for Intern al Vibrator | B 5000 | 5000007522, 5000006307 |
| 915mm/36in Walk-behind Trowel | CT36BDT-E | 5000008010 |
| 75mm/3in Diaphragm Pump | PD3B | 5000006802 |
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.
