The Wacker Neuson is a genuine OEM Wiring Harness designed for the E1250 and HSH380 series hydronic surface heaters. As a direct OEM replacement, this harness is built to the exact electrical specifications of the original component, ensuring correct connector fit and proper signal routing throughout the heating system. It is compatible across a broad range of E1250 and HSH380 configurations, including Standard, Basic, and Premium variants running on LP/NG, natural gas, or diesel fuel, with or without an integrated generator. Sourcing a genuine Wacker Neuson means you get the same part that left the factory — no guesswork on pin count, wire gauge, or connector type.
Key Features
- Correct Electrical Specification: — Manufactured to OEM wire gauge, connector, and routing specs — critical for stable control signals and accurate sensor readings in hydronic heating systems.
- Drop-In Connector Compatibility: — Plugs directly into OEM harness positions across E1250 and HSH380 series machines with no splicing or adapter work needed.
- Broad Series Coverage: — Fits E1250S, E1250B, and E1250P heaters alongside HSH380S and HSH380B models across LP/NG, natural gas, and diesel fuel variants, with and without generator packages.
- Sustained Heating Performance: — A damaged or corroded wiring harness can cause erratic burner behavior, sensor faults, or complete heater shutdown; replacing it restores full system control and consistent heat output.
- Fuel System and Ignition Safety: — In a combustion-based heater, a compromised harness risks intermittent ignition signals or failed safety shutoffs — using a genuine OEM harness maintains the integrity of these critical circuits.
The wiring harness is the electrical backbone of the hydronic surface heater, routing power and control signals between the burner, pump, thermostat, sensors, and control board. When the harness is damaged — through heat exposure, abrasion, or moisture ingress — individual circuits can fail, leading to erratic operation, fault codes, or a complete loss of heat. Replacing the harness with a genuine Wacker Neuson 5200014429 restores reliable communication across all electrical systems and keeps the heater operating as intended.
Part Details
| Part Number | 5200014429 |
|---|---|
| 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.
