The Wacker Neuson Pipe Fitting is a genuine OEM component designed for the E1250 and HSH380 series hydronic surface heaters, including the E1250S, E1250B, E1250P, HSH380S, and HSH380B models running on diesel, LP, or natural gas configurations. As a direct OEM replacement, part number is manufactured to the same specifications as the original, ensuring a correct, leak-free connection within the hydronic circuit. This fitting is essential to maintaining proper fluid flow and system integrity across the full range of compatible Wacker Neuson hydronic heater variants. Whether you are servicing a diesel-powered HSH380S with generator or a natural gas HSH380B without, this is the correct OEM part for the job.
Key Features
- OEM-Grade Sealing Integrity — Manufactured to original tolerances, this pipe fitting delivers a pressure-rated, leak-free connection critical to maintaining closed-loop hydronic fluid circulation.
- Drop-In Replacement — Matches the original fitting's thread type, sizing, and port orientation so it installs directly into the existing hydronic plumbing without alteration.
- Broad Model Coverage — Compatible with E1250S, E1250B, E1250P, HSH380S, and HSH380B heaters across diesel, LP, and natural gas fuel configurations.
- Supports Consistent Heat Output — A correctly seated fitting maintains the fluid pressure needed for even heat distribution across the surface heating blanket; a failed or leaking fitting disrupts flow and compromises heating performance.
- Fuel-System Safety Relevance — In a pressurized hydronic circuit, fitting integrity directly affects safe, contained fluid handling — using the correct OEM-specified part helps ensure the system operates within its designed pressure parameters.
A pipe fitting in a hydronic surface heater serves as a sealed connection point within the fluid circuit that carries heated glycol or water from the heater unit out to the surface heating blankets and back. It controls the direction and containment of flow between components such as hoses, manifolds, and the heater body. When a fitting cracks, corrodes, or loses its seal, the system loses fluid pressure, reducing heating efficiency and potentially causing fluid loss that shuts the heater down entirely. Replacing a worn or damaged fitting promptly with the correct OEM part restores full circuit integrity and keeps the heating system operating as intended.
Part Details
| Part Number | 5200012539 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Pipe Fitting |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355 |
| E12540B | E1250B | 5200012353, 5200007613 |
| HSH380s | HSH 380S | 5100054643 |
| E 1250P Hydronic Heater, Premium, Diesel | E1250P | 5200012357, 5200012356 |
| HSH380S-Diesel, with Generator | HSH380S | 5200012371 |
| 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.
