The Wacker Neuson Tension Spring is a genuine OEM component designed for the E3000 and E5000 series ground heaters and hydronic surface heaters. As a direct OEM replacement, this part is manufactured to the same specifications as the original, ensuring it installs and functions exactly as intended across the wide range of E3000 and E5000 configurations it supports. Fitment covers E3000 Ground Heater variants — including generator, liftbail, and temperature-controller configurations — as well as E5000 Ground Heaters equipped with gas or diesel burners and generator packages. Sourcing the correct tension spring by part number ensures the internal mechanism it supports continues to operate with proper tension and control.
Key Features
- Genuine OEM Spring Rate: — Manufactured to the original tension specification, so the spring delivers the correct resistance and return force — not an approximation.
- Drop-In Installation: — Matches the original mounting points and geometry for a straightforward swap with no reworking of adjacent components.
- Broad E3000 & E5000 Coverage: — Confirmed fit across E3000 Ground Heater and Hydronic Surface Heater variants, plus E5000 gas- and diesel-burner ground heater configurations.
- Consistent Mechanism Control: — A properly tensioned spring keeps the connected mechanism returning to its correct position reliably; a fatigued or broken spring can cause erratic operation or failure to engage.
- Verified by Part Number: — Order with confidence using OEM part number 5200004021 to confirm you are receiving the exact spring specified for your machine.
A tension spring stores and releases mechanical energy to hold a component in position, return a lever or linkage to its rest state, or maintain consistent contact between moving parts. In ground heater and hydronic surface heater applications, this function is critical to ensuring that controls, valves, or mechanical linkages respond predictably during operation. When a tension spring weakens, stretches beyond its rated length, or breaks entirely, the mechanism it governs may fail to return to the correct position — leading to inconsistent heater behavior or the inability to maintain proper operating settings.
Part Details
| Part Number | 5200004021 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Tension Spring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E3000 Hydronic Surface Heater with generator | E3000 | 5000620219, 5000620679, 5000620158, 5000620678, 5200014677, 5200004952, 5100017807, 5100017809, 5200014678, 5200014679, 5200014720, 5100017806, 5100017808, 5200014721, 5100017810, 5100017811, 5100025046, 5100055568, 5100056441, 5100056440, 5100025045 |
| E5000 GROUND HEATER, W/GAS BURNER | E5000 | 5000620898, 5000620897, 5000620899 |
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.
