The Wacker Neuson Lock Washer is a genuine OEM component designed for the CUB300HD Portable Indirect Fired Air Heater Heavy Duty with LB. As a direct OEM part, the is manufactured to the exact specifications of the original hardware used on the CUB300HD, ensuring a correct, consistent fit every time it is installed. This lock washer is an essential fastening component that keeps critical assemblies secure under the vibration and thermal cycling conditions common to indirect fired air heater operation. Keep a spare on hand — small hardware like this is often what stands between your heater being fully operational and an unexpected delay on a cold-weather job.
Key Features
- Genuine OEM Hardware Grade — manufactured to the exact hardness and dimensional spec of the original lock washer, ensuring correct clamping force and bite on mating fasteners.
- Drop-In Replacement — matches the original bore size, outer diameter, and thickness of the factory-installed washer, so installation requires no modification to existing hardware or mating components.
- Verified Fitment for CUB300HD — confirmed compatibility with the CUB300HD Portable Indirect Fired Air Heater Heavy Duty with LB, so you can order with confidence.
- Vibration and Thermal Resistance — lock washer design resists loosening caused by the repeated heat cycles and mechanical vibration inherent to indirect fired air heater use, maintaining fastener preload over time.
- Direct from the OEM Parts Catalog — sourced under Wacker Neuson part number 5000173987, eliminating any ambiguity when cross-referencing your machine's parts manual.
A lock washer is a hardened fastening element placed beneath a bolt or nut to prevent the fastener from backing out due to vibration, thermal expansion, or mechanical movement. In an indirect fired air heater like the CUB300HD, components are subject to repeated heat-up and cool-down cycles that can gradually loosen standard fasteners — the lock washer's spring tension or toothed edges bite into both the fastener and the mating surface to maintain a secure clamp. When a lock washer is worn, deformed, or missing, fasteners can work loose over time, potentially leading to component misalignment, air leaks, or structural failures within the heater assembly.
Part Details
| Part Number | 5000173987 |
|---|---|
| Old Part Number | 0173987 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Lock Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable-Indirect Fired Air He ater-Heavy Duty w/LB | CUB300HD | 5000620253 |
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.
