The Wacker Neuson Flywheel is a genuine OEM component designed for the E1250S and E1250P Hydronic Heaters, E2200 and E3000 Ground Heaters, and HSH380S and HSH380B Hydronic Surface Heaters. As a factory-sourced part, the is manufactured to the same specifications as the original, ensuring a direct, hassle-free installation in supported heater units. This Flywheel is the correct replacement across a wide range of Wacker Neuson ground heating and hydronic surface heating equipment — confirm your model number before ordering to ensure compatibility with your specific machine configuration.
Key Features
- Genuine OEM Construction: — Manufactured to Wacker Neuson's original mass and balance tolerances, ensuring the flywheel maintains correct rotational inertia for smooth engine operation in heating equipment.
- Direct-Fit Replacement: — Matches the original mounting interface and hub dimensions, so it installs on the engine shaft exactly as the outgoing part did — no machining or adaptation needed.
- Broad Heater Family Coverage: — Confirmed fitment across the E1250S, E1250P, E2200, E3000, HSH380S, and HSH380B series, covering LP/NG, Diesel, Standard, and Premium configurations.
- Sustained Engine Stability: — A correctly functioning flywheel keeps engine RPM steady under the variable load demands of ground heating and hydronic surface heating operation; a worn or cracked flywheel causes rough running, vibration, and potential engine damage.
- Electrical System Integrity: — On generator-equipped variants (E3000 3kW Gen, HSH380S w/Generator), the flywheel also carries the magneto/charging components, making correct flywheel condition essential for reliable power output to the heating circuit.
The flywheel is a heavy, precision-balanced rotating disc bolted to the engine crankshaft. Its stored rotational energy smooths out the power pulses between firing strokes, keeping the engine running evenly — a function that is especially important in heating equipment where a stable, consistent engine speed directly affects burner performance and heat output. On models equipped with an integrated generator, the flywheel also hosts the magneto or alternator rotor, meaning it plays a dual role in both engine balance and electrical generation. A flywheel that is cracked, damaged, or out of balance will cause noticeable vibration, erratic engine speed, and — on generator-equipped units — inconsistent or failed electrical output.
Part Details
| Part Number | 5100015714 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flywheel |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| E3000 Ground Heater, 3kW Gen, TC | E3000 | 5100017807, 5100017809, 5100017806, 5100017808, 5100017810, 5100017811, 5100017801 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH 380S-Natural Gas/Propane, w/Generator | HSH380S | 5200012370, 5200012371 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359 |
| E2200 GROUND HEATER, 3kW GENERATOR | E2200 | 5100017448, 5100017449 |
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.
