The Wacker Neuson Lock Washer is a genuine OEM component designed for the E3000, E2200, and HSH700G series hydronic surface heaters. Sourced directly from Wacker Neuson, this lock washer matches the original specification installed at the factory across multiple E3000 and E2200 ground heater and hydronic surface heater configurations. Whether you're servicing a basic E3000 Ground Heater or a fully equipped E3000 with lift bail, generator, and temperature control, part number is the correct, verified replacement. Keeping fastener hardware to OEM spec is an often-overlooked step in heater maintenance — the right lock washer ensures joints stay secure and vibration doesn't back out critical connections over a season of heavy use.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Wacker Neuson's original material and dimensional spec, ensuring the correct tension and bite characteristics expected of this fastener position in the heater assembly.
- Drop-In Replacement — Matches the original lock washer's bore, outer diameter, and profile for a straightforward swap with no modification to surrounding hardware or fasteners.
- Broad HSH and Ground Heater Fitment — Confirmed for E3000, E2200, and HSH700G series hydronic surface heaters across standard, lift bail, generator, and temperature control configurations.
- Vibration Resistance Where It Counts — Lock washers in hydronic heater assemblies prevent fastener loosening caused by operational vibration and thermal cycling — a failed or missing washer can lead to loose connections and premature mechanical wear.
- Verified Part Number — Order 5000167855 with confidence; this is the exact OEM part number referenced in Wacker Neuson service documentation for these heater families.
A lock washer is a small but essential piece of hardware used to prevent threaded fasteners from loosening under vibration, mechanical stress, or repeated thermal expansion and contraction. In hydronic surface heaters like the E3000 and E2200 series, components are subject to heat cycling and operational movement throughout their service life, making secure fastener retention critical to safe and consistent performance. When a lock washer is worn, deformed, or missing, fasteners can gradually back out — leading to loose assemblies, potential fluid leaks, or component misalignment that compounds into more significant repairs if left unaddressed.
Part Details
| Part Number | 5000167855 |
|---|---|
| Old Part Number | 0167855 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| E3000 Hydronic Surface Heater with Liftbail and generator | E3000 | 5000620679, 5000620678, 5100017809, 5200014679, 5200014720, 5100017808, 5100025046, 5100055568, 5100056441, 5100056440, 5100025045 |
| HSH700 | HSH700G | 5000620243 |
| E2200 GROUND HEATER, W/ LIFT BAIL | E2200 | 5000620215, 5000620226, 5100017449 |
| Hydronic Surface Heater, 700m hose | E700M | 5000620195 |
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.
