The Wacker Neuson is a genuine OEM Wiring Harness designed for the E1250S, E1250P, HSH380S, and HSH380B series hydronic surface heaters. As a factory-original component, this harness is built to exact electrical specifications, ensuring every connector, gauge, and routing path matches the original design. It fits across multiple heater configurations — including diesel, natural gas, and propane variants — covering both standard and premium models with or without an integrated generator. Whether you are restoring a unit after electrical damage or completing a preventive overhaul, part number delivers the correct fit without guesswork.
Key Features
- Correct Wire Gauge and Connector Spec — Genuine OEM construction ensures each circuit carries the correct current rating for the hydronic heater's control and heating systems.
- Drop-In Harness Routing — Matches original mounting points and connector housings, so the harness installs directly into existing brackets and plugs without rework.
- Broad Fitment Across the E1250 and HSH380 Families — Covers E1250S, E1250P, and E1250B heaters alongside HSH380S and HSH380B units in diesel, LP, and natural gas configurations.
- Protects Sensitive Control Components — A correctly functioning wiring harness maintains clean signal paths to thermostats, ignition controls, and safety circuits — a degraded or shorted harness can trigger false shutdowns or prevent startup entirely.
- Electrical Safety Integrity — On fuel-burning heating equipment, harness condition is directly tied to safe operation; a factory-original replacement maintains the insulation ratings and circuit protection designed into the machine.
The wiring harness is the central electrical backbone of the hydronic surface heater, routing power and control signals between the burner assembly, circulation pump, thermostat, and safety interlocks. When the harness is intact and properly routed, every system in the heater communicates reliably and the unit cycles on and off as designed. A worn, chafed, or corroded harness can cause intermittent faults, failed startups, or unresponsive controls — symptoms that are often misdiagnosed as component failures until the harness itself is inspected.
Part Details
| Part Number | 5200014426 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Wiring Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| E12540B | E1250B | 5200012353, 5200007613 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
| HSH380B-Diesel, without generator | HSH380B | 5200012359, 5200007614 |
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.
