The Wacker Neuson Water Flange Gasket is a genuine OEM component designed for the HSH380S, E1250S, E1250P, E2200, and E3000 series hydronic surface heaters and ground heaters. As a direct OEM replacement, this gasket is produced to the exact material and dimensional standards set by Wacker Neuson, ensuring a proper seal at the water flange connection. It is compatible across a wide range of configurations within these heater families, including LP/NG, diesel, and generator-equipped variants. Keep part number on hand to minimize interruption during scheduled maintenance or emergency seal replacement.
Key Features
- Genuine OEM Sealing Material — Manufactured to Wacker Neuson's exact compound and compression specifications for water flange applications, ensuring consistent sealing performance in hydronic heating systems.
- Direct Flange Replacement — Seats directly at the water flange joint with no trimming or modification, maintaining the original clamping geometry of the connection.
- Broad Heater Family Coverage — Fits HSH380S, E1250S, E1250P, E2200, and E3000 series units across LP/NG, diesel, and generator-integrated configurations.
- Leak Prevention at the Source — A failed or compressed-out flange gasket allows coolant or heated water to escape the loop, degrading heating output and risking damage to surrounding components.
- Essential Maintenance Stock — Gaskets are a wear item in hydronic systems; stocking part number 5200018117 supports fast turnaround on scheduled service intervals.
The water flange gasket seals the joint where a water flange connects within the hydronic heating circuit, preventing leaks of the heated fluid that circulates through the system to warm concrete slabs, ground surfaces, or enclosed spaces. When this gasket deteriorates or is compressed beyond its serviceable limit, it can allow fluid to escape the circuit, reducing heating efficiency and potentially causing water damage to nearby components. Replacing the gasket at each service interval — or immediately upon any sign of weeping at the flange joint — keeps the hydronic loop sealed and the heater operating at full output.
Part Details
| Part Number | 5200018117 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Water Flange Gasket |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E1250S | E1250S | 5200012355, 5200012354 |
| E3000 Ground Heater, 3kW Gen, TC | E3000 | 5100017807, 5100017809, 5100017806, 5100017808, 5100017810, 5100017811, 5100025046, 5100017801 |
| 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 |
| 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.
