The Wacker Neuson Flat Washer is a genuine OEM component designed for the HI750 and HI900 series indirect-fired air heaters. Sourced directly from Wacker Neuson, this flat washer meets the exact material and dimensional standards of the original part installed at the factory. It is confirmed to fit multiple HI750 and HI900 configurations, including the HI750GM, HI750GMHD, HI750G, HI900DGM, and associated surge brake and mobile variants. Having the correct hardware on hand keeps your heater assembly properly secured and operating as intended throughout the heating season.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Wacker Neuson's original material and thickness specification, ensuring correct load distribution and clamping force within the heater assembly.
- Drop-In Replacement — Matches the original mounting hole pattern and outer diameter, installing directly without any modification to existing fastener hardware or mounting surfaces.
- Broad HI Series Fitment — Compatible across HI750GM, HI750GMHD, HI750G, HI900DGM, and related surge brake and mobile indirect-fired heater configurations.
- Prevents Fastener Pull-Through — A properly fitted flat washer distributes bolt or screw load evenly across the mating surface, protecting the heater housing and structural panels from stress cracking or deformation over time.
- Verified Part Number — Order with confidence using Wacker Neuson part number 5000186717 to confirm you are receiving the correct hardware for your specific HI series heater model.
A flat washer serves as a load-spreading interface between a fastener — such as a bolt or screw — and the surface it clamps against. By distributing the clamping force over a wider area, it protects softer housing materials from being damaged by the fastener head and helps maintain consistent bolt tension over repeated heating and cooling cycles. When a washer is missing, worn, or incorrectly sized, fasteners can work loose or pull through their mounting points, compromising the structural integrity of the heater assembly and potentially allowing vibration-related damage to accumulate during transport or operation.
Part Details
| Part Number | 5000186717 |
|---|---|
| Old Part Number | 0186717 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Flat Washer |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI750 DGM HEATER-INDIRECT | HI750GM | 5000620859, 5000620930 |
| HI 750GM HD-Mobile Indirect Ai r Heater-Surge, -40 | HI750GMHD | 5000620969 |
| HI750G HEATER-INDIRECT | HI750G | 5000620857 |
| Factory-Installed Options | Factory-Installed Options | 5200004152 |
| HI900 Heater-DGM,Srg,-40 | HI900DGM | 5200014221, 5200014222, 5200014165, 5200014166 |
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.
