The Wacker Neuson Trailer Frame Complete is a genuine OEM structural assembly designed for HI750 and HI900 series indirect-fired air heaters. This is the complete trailer frame unit, sourced directly from Wacker Neuson, ensuring an exact fit with the mounting points, axle geometry, and surge brake hardware these towable heater units depend on. Compatible models include the HI750GM, HI750GMHD, HI750G, HI900DGM, and related surge-brake configurations. As a genuine OEM component, the is manufactured to the same specifications as the original frame, so no re-drilling, re-fabricating, or adaptation is needed to restore the unit to service.
Key Features
- Full Structural Assembly: — Supplied as a complete trailer frame unit — all primary structural members included — so you replace the entire foundation in a single service operation.
- Genuine OEM Build Quality: — Engineered to Wacker Neuson's original load and tow-rating specifications, with correct weld geometry and steel grade for a towable indirect-fired heater frame.
- Surge Brake Compatibility: — Designed to accommodate the surge brake hardware fitted to HI750GMHD, HI900DGM, and other surge-brake variants, maintaining proper braking system integration.
- Broad HI-Series Fitment: — Confirmed for HI750GM, HI750GMHD, HI750G, HI900DGM, and related indirect heater configurations across multiple serial-number ranges.
- Structural Integrity for Safe Towing: — A damaged or corroded trailer frame compromises tow-vehicle hitch load, wheel alignment, and brake function; replacing with the correct OEM frame restores safe, road-legal operation.
The trailer frame is the load-bearing foundation of a towable indirect-fired air heater — it carries the heater cabinet, fuel tank, axle assembly, and hitch coupler as a single road-ready unit. On surge-brake equipped models, the frame also houses the coupler mechanism that activates the brakes under deceleration, making structural integrity directly tied to towing safety. A cracked, bent, or severely corroded frame cannot hold correct wheel alignment or coupler geometry, which creates handling risk and potential regulatory non-compliance when the unit is towed on public roads.
Part Details
| Part Number | 5000186729 |
|---|---|
| Old Part Number | 0186729 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Trailer Frame Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI750 DGM,SB HEATER-INDIRECT | HI750GM | 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, 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.
