The Wacker Neuson Fly Wheel is a genuine OEM component designed for a wide range of Wacker Neuson vibratory plates, generators, truss screeds, and internal vibrators, including the WP1550A, WP1540A, WP1550AW, WP1540AW, GV2500A, and PT2A series. Sourced directly from Wacker Neuson, this fly wheel is manufactured to the exact specifications of the original part it replaces, ensuring a correct, drop-in fit with no guesswork. Compatibility extends across multiple platform variants including WPU1550A, WPU1550AW, HP50A, HP100A, HPG50A, HPG100A, and the D3.5A modular internal vibrator series. When it comes to engine-driven Wacker Neuson equipment, using the correct OEM fly wheel keeps the power system operating as the machine was engineered to perform.
Key Features
- Genuine OEM Balanced Mass: — Manufactured to Wacker Neuson's original rotational balance specification, ensuring smooth power delivery without vibration-induced stress on the crankshaft or engine bearings.
- Direct Engine Drop-In: — Machined to match the original bolt pattern and taper fit of the Wacker Neuson engine platform, installing exactly as the factory part does with no adaptation needed.
- Broad Model Coverage: — A single part number covering WP1540A, WP1550A, WP1540AW, WP1550AW, WPU1550A, WPU1550AW, GV2500A, PT2A, HP50A, HP100A, HPG50A, HPG100A, and D3.5A series equipment.
- Restores Engine Timing Integrity: — A worn or damaged fly wheel disrupts ignition timing reference and crankshaft momentum, leading to rough running, hard starts, or complete engine failure. Replacing with part 5100050547 restores correct timing signal and rotational inertia.
- Sustained Output Under Load: — The fly wheel stores rotational energy between power strokes, allowing the engine to maintain consistent speed under the variable loads typical of compaction and concrete finishing work.
The fly wheel is a heavy rotating disc mounted directly to the engine crankshaft. Its primary job is to store rotational kinetic energy between each power stroke, smoothing out the pulses of combustion into a steady, consistent output — this is especially critical on single-cylinder engines common to compaction and concrete equipment. On many small engines, the fly wheel also carries the magneto magnets that trigger the ignition system, meaning a cracked, damaged, or incorrectly fitted fly wheel can cause ignition failure or erratic timing as well as rough running. When a fly wheel wears, chips, or loses its keyway alignment, the result is hard starting, misfiring, or loss of power under load.
Part Details
| Part Number | 5100050547 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fly Wheel |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GV2500A | GV2500A | 5000009345, 5000009350 |
| Vibratory Plate, 15kN, 400mm/1 5.5in | WP1540AW | 5000008060, 5000009545, 5000009472, 5000630045 |
| Vibratory Plate, 15 kN, 500mm/ 19.5in | WP1550AW | 5000007576, 5000009546, 5000630043, 5000009486 |
| WP1540A VIBROPLATE | WP1540A | 5000008061, 5000630046 |
| WP1550A Single Direction Vibratory Plate | WP1550A | 5000007579, 5000630044 |
| HP50A | HP50A | 5000009508 |
| Vibratory Truss Screed, Power Section | HP100A | 5000009506 |
| HPG50A | HPG50A | 5000009509 |
| VP1550AW/WH | VP1550AW/WH | 5000630373 |
| VP1340AW/WH | VP1340AW/WH | 5000630374 |
| WPU1550AW-US | WPU1550AW-US | 5100069715 |
| WPU1550Aw | WPU1550AW | 5100071591 |
| WPU1550A-US | WPU1550A-US | 5100069716 |
| WPU1550A | WPU1550A | 5100071592 |
| PT2A | PT2A | 5100058524, 5100058525 |
| HPG100A | HPG100A | 5000009507 |
| Modular Internal Vibrators | D3.5A3 | 5100072402 |
| Modular Internal Vibrators | D3.5A2 | 5100072405 |
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.
