The Wacker Neuson Flow Indicator Sensor is a genuine OEM component designed for the E1250 and HSH380 series hydronic surface heaters. As a direct OEM replacement, this sensor is manufactured to the exact specifications required to maintain accurate flow monitoring across E1250S, E1250P, E1250B, HSH380S, and HSH380B models — covering LP/NG, diesel, and generator-equipped configurations. Installing the correct Wacker Neuson ensures your hydronic heating system continues to operate within its designed parameters. When flow sensing is compromised, the system loses its ability to detect circulation faults, which can lead to overheating, uneven surface heating, or undetected system failures.
Key Features
- Genuine OEM Sensing Accuracy — Manufactured to Wacker Neuson's specified detection thresholds, ensuring the sensor reads fluid flow at the correct rate for the E1250 and HSH380 heating circuits.
- Drop-In Replacement — Matches the original sensor's connector type and mounting configuration, allowing straightforward installation without additional modification to the fluid circuit.
- Broad Series Coverage — Compatible with E1250S, E1250P, and E1250B models across LP/NG and diesel fuel variants, as well as HSH380S and HSH380B units with and without onboard generators.
- Protects System Integrity — A functioning flow sensor enables the heater's control system to detect low or no-flow conditions, helping prevent heat exchanger damage and extending the service life of the heater.
- Fuel and Configuration Versatile — A single part number covers multiple fuel and equipment configurations across the E1250 and HSH380 product families, simplifying parts sourcing and inventory management.
The flow indicator sensor monitors the movement of heated fluid through the hydronic heating circuit. It signals the control system to confirm that coolant or glycol solution is actively circulating before and during heater operation. When this sensor fails or gives inaccurate readings, the heater may not detect a loss of flow — leaving the heat exchanger exposed to damage from overheating — or it may trigger false shutdowns that interrupt surface curing or concrete cold-weather protection operations.
Part Details
| Part Number | 5200013298 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flow Indicator Sensor |
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.
