Wacker Neuson 5100056820 Flywheel Complete

The Wacker Neuson Flywheel Complete is a genuine OEM component designed for the PDT2A, PDT3A, and PDI3A series. Sourced directly from Wacker Neuson, this is the exact assembly specified for these machines — no guesswork on fitment or compatibility. As a genuine OEM part, the meets the original engineering requirements for balance, mass, and ignition timing alignment, ensuring the engine runs as it was built to. If your machine is showing rough idle, misfiring, or starting issues, replacing a worn or damaged flywheel complete with the correct OEM assembly restores proper engine operation.

Key Features

• Genuine OEM Ignition Timing Integrity — Built to the original Wacker Neuson specification, ensuring the flywheel's magnetic rotor aligns precisely with the ignition module for correct spark timing.
• Complete Assembly, Ready to Install — Supplied as a full flywheel complete, including all integrated components, so it drops in as a single unit without sourcing individual sub-parts.
• Confirmed Fitment for PDT and PDI Series — Verified for PDT2A, PDT3A, and PDI3A models, covering a range of Wacker Neuson plate compactor configurations.
• Restores Smooth Engine Operation — A correctly balanced flywheel stabilizes crankshaft rotation and maintains consistent engine speed — a worn or cracked flywheel causes vibration, hard starting, and erratic performance.
• Electrical Safety Compliance — The integrated magneto rotor is a critical ignition system component; using the correct OEM assembly maintains proper voltage output and reduces risk of ignition failure in the field.

The flywheel is a heavy rotating disc mounted to the crankshaft that stores rotational energy to keep the engine turning smoothly between power strokes. On small engine equipment like plate compactors, the flywheel also carries the magneto magnets that trigger the ignition coil, making it essential to both engine balance and spark timing. When a flywheel is cracked, worn, or has damaged fins or magnets, the result is hard starting, rough running, or a complete loss of ignition — replacing it with the correct complete assembly brings the engine back to its original operating condition.

Part Details

Compatibility & Fitment

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.