The Wacker Neuson Fitting is a genuine OEM component designed for the HI400HD G Indirect Air Heater. Sourced directly from Wacker Neuson, this fitting matches the original specification installed at the factory, ensuring a correct, leak-free connection within the heater's fuel or fluid circuit. If you're servicing an HI400HD G unit, verifying you have part number is the fastest way to confirm you're installing the right piece the first time.
Key Features
- Genuine OEM Construction — Manufactured to Wacker Neuson's original thread form and dimensional spec, so the fitting seats and seals exactly as the original did.
- Direct Drop-In Replacement — Matches the original port thread type and size on the HI400HD G, allowing straightforward installation without rework or adapters.
- Confirmed Fitment — Verified for the HI400HD G Indirect Air Heater (5000620701), removing guesswork from the parts sourcing process.
- Leak-Free Circuit Integrity — A correctly fitted OEM fitting maintains proper pressure and flow in the heater's fuel or fluid line, supporting consistent heat output in demanding conditions.
- Long-Term Corrosion Resistance — Built to withstand the thermal cycling and environmental exposure common to indirect-fired heating applications on active job sites.
A fitting is a threaded or press-fit connector used to join sections of fuel, fluid, or air lines within a machine's internal circuit. In an indirect-fired air heater like the HI400HD G, fittings play a critical role in maintaining sealed, pressure-stable connections throughout the fuel delivery and combustion support system. When a fitting cracks, corrodes, or strips, it can cause fuel or fluid leaks that compromise heater output, create a potential fire hazard, and force an unplanned shutdown — making prompt replacement with the correct OEM part essential to safe, continuous operation.
Part Details
| Part Number | 5000186690 |
|---|---|
| Old Part Number | 0186690 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fitting |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 400HD G Indirect Air Heater | HI400HD G | 5000620701 |
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.
