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 same specifications as the part installed at the factory, ensuring a correct fit without guesswork. It is compatible across multiple HI750 and HI900 configurations, including standard, DGM, surge brake, and mobile variants. When it comes time to service your indirect heater, using the correct OEM hardware keeps the assembly torqued and seated the way it was built.
Key Features
- Genuine OEM Hardware Integrity — Manufactured to Wacker Neuson's exact dimensional and material specifications, so load distribution and clamping force remain consistent across fastened joints.
- Drop-In Replacement — Matches the original hole diameter, outer diameter, and thickness, allowing straightforward installation with no rework to surrounding hardware or mounting surfaces.
- Broad HI Series Compatibility — Fits HI750G, HI750GM, HI750GM HD, HI900DGM, and related indirect-fired air heater configurations, covering both standard and surge-brake-equipped units.
- Maintains Fastener Clamp Load — A correctly sized flat washer spreads load evenly across the mating surface, protecting threads and preventing fastener pull-through during heating cycles and transport vibration.
- Fuel and Combustion System Adjacent — Used within indirect-fired heater assemblies where hardware integrity directly supports safe, consistent burner and fuel system operation; using the correct OEM specification part matters in this environment.
A flat washer serves as a load-distributing interface between a fastener — such as a bolt or nut — and the surface it bears against. In equipment like indirect-fired air heaters, which operate in demanding cold-weather environments and are subject to vibration during transport and operation, properly spec'd washers prevent fasteners from loosening prematurely, protect mounting surfaces from damage, and help maintain consistent clamping force across service intervals. When a washer is undersized, oversized, or worn thin, it can allow fastener movement that leads to loosened assemblies, stripped threads, or compromised sealing in adjacent components.
Part Details
| Part Number | 5000186716 |
|---|---|
| Old Part Number | 0186716 |
| 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.
