The Wacker Neuson Expansion Tank is a genuine OEM component designed for the E5000 Ground Heater and CH5000 Cross Heater series. As a direct OEM replacement, it is manufactured to the same specifications as the original part, ensuring a proper fit within the heating system's coolant circuit. This expansion tank is compatible across E5000 Gas Burner, E5000 Diesel Burner, E5000 12kW Generator with Diesel, and CH5000 Cross Heater with Oil Burner configurations.
Key Features
- Genuine OEM Construction — Manufactured to the same material and pressure tolerances as the original tank, ensuring the coolant circuit maintains correct operating pressure across all E5000 and CH5000 heater variants.
- Direct OEM Replacement — Mounts to the existing coolant circuit connections with no adaptation, making this a straightforward swap during scheduled maintenance or emergency repairs.
- Broad Heater Series Compatibility — Fits E5000 Ground Heaters (gas burner, diesel burner, and 12kW generator diesel configurations) as well as CH5000 Cross Heaters with oil burner setups.
- Sustained Heating Performance — A correctly functioning expansion tank keeps coolant pressure stable under thermal cycling; a cracked or failed tank can lead to coolant loss, overheating, and unplanned heater shutdowns on the job.
- Fluid System Integrity — Proper expansion tank function is critical to preventing pressurization faults and coolant overflow, helping protect connected heating system components from heat-related damage.
The expansion tank is a sealed reservoir within the heater's coolant circuit that accommodates the volume change of coolant fluid as it heats up and cools down. As fluid expands under heat, the tank absorbs the excess pressure, preventing stress on hoses, seals, and the heat exchanger. When the expansion tank cracks, collapses, or develops a leak, coolant levels drop, pressure regulation fails, and the heater can overheat or shut down entirely — a serious concern when ground thawing or frost protection work is underway in cold-weather conditions.
Part Details
| Part Number | 5000166958 |
|---|---|
| Old Part Number | 0166958 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Expansion Tank |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E5000 GROUND HEATER, W/GAS BURNER | E5000 | 5000620898, 5000620897, 5000620899 |
| Cross Heater with oil burner | CH5000 | 5000620240, 5000620242 |
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.
