The Wacker Neuson Wiring Harness is a genuine OEM component designed for the HSH 380S, HSH 380B, E 1250S, E 1250P, and E 1250B hydronic surface heaters. Sourced directly from Wacker Neuson, this wiring harness matches the original electrical routing, connector types, and conductor specifications of the factory-installed unit. It fits across both diesel and LP/NG fuel variants of the HSH 380 and E 1250 series, covering standard, premium, basic, and generator-equipped configurations. Verifying your model number against part number before ordering ensures a clean, correct installation.
Key Features
- Genuine OEM Electrical Integrity — Manufactured to Wacker Neuson's exact conductor gauge, insulation rating, and connector specification for hydronic heater wiring harnesses — no guesswork on pin count or wire routing.
- Drop-In Connector Match — Each connector end is molded to the original plug housing geometry, allowing the harness to seat and lock without splicing or adapter fittings.
- Broad HSH and E 1250 Series Coverage — Compatible with the HSH 380S and HSH 380B (diesel and natural gas/propane variants, with and without generator) as well as the E 1250S, E 1250P, and E 1250B LP/NG hydronic heaters.
- Sustained Heating System Output — A correctly functioning wiring harness keeps ignition, burner control, and pump signals stable; a degraded harness can cause intermittent shutdowns or failed ignition sequences that interrupt surface curing or freeze-protection operations.
- Fuel System and Ignition Safety — Heater wiring harnesses carry control signals to burner and fuel management circuits; using the correct OEM harness maintains the intended fault-detection and safety-shutoff behavior built into the heater's control system.
The wiring harness is the central electrical backbone of the hydronic surface heater, bundling and routing all control, power, and signal conductors between the ignition system, burner assembly, circulation pump, and control panel. It ensures each component receives the correct voltage and signal at the right time to maintain consistent heat output. When the harness degrades — through heat cycling, abrasion, or connector corrosion — the result is typically intermittent or complete loss of burner function, erratic pump behavior, or failure of safety-shutoff circuits, all of which can halt concrete curing or cold-weather ground thaw operations on the jobsite.
Part Details
| Part Number | 5200023336 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Wiring Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HSH380s | HSH 380S | 5100054643 |
| E 1250S Hydronic Heater, Standard, LP/NG | E1250S | 5200012354 |
| E 1250P Hydronic Heater, Premium, LP/NG | E1250P | 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371, 5200012370 |
| E 1250B Hydronic Heater, Basic, LP/NG | E1250B | 5200007613 |
| 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.
