The Wacker Neuson Exhaust Tube is a genuine OEM component designed for the HI110D, HI110HD D, HI200D, HI200HD D, HI300D, and HI300HD D diesel indirect air heater series. Sourced directly from Wacker Neuson, this part matches the original specification and installs without modification to the existing exhaust path. It is a direct replacement for the factory-installed exhaust tube found across all standard and heavy-duty HI-series diesel heater configurations. Verify your machine model and serial number against the fitment list before ordering to confirm compatibility.
Key Features
- OEM Exhaust Material & Geometry — Manufactured to the original tube diameter, length, and material grade, ensuring proper exhaust gas flow and sealed connections within the heater assembly.
- Drop-In Fitment for HI-Series Heaters — Engineered to seat and connect exactly as the original, covering the HI110D, HI110HD D, HI200D, HI200HD D, HI300D, and HI300HD D diesel indirect air heater models.
- Maintains Combustion Efficiency — A correctly fitted exhaust tube keeps combustion gases routed cleanly away from the heat exchanger, preserving BTU output and fuel efficiency across all operating temperatures.
- Prevents Exhaust Leak Risks — A cracked or degraded exhaust tube can allow combustion gases to contaminate the heated airstream in an indirect heater — replacing it promptly is essential for safe, compliant operation.
- Genuine Wacker Neuson Part — Backed by Wacker Neuson's OEM supply chain, part number 5000186740 is traceable to the original design files for these heater platforms.
The exhaust tube in a diesel indirect air heater channels combustion exhaust gases from the burner assembly safely out of the unit, keeping them entirely separate from the heated air delivered to the work area — which is what distinguishes an indirect-fired heater from a direct-fired model. This separation is critical: any breach in the exhaust tube can allow carbon monoxide and combustion byproducts to enter the output airstream, creating a serious safety hazard in enclosed spaces. Over time, heat cycling and condensation can cause the tube to corrode, crack, or develop leaks at its joints, resulting in reduced heater performance, fault codes, or unsafe operating conditions — making timely replacement important.
Part Details
| Part Number | 5000186740 |
|---|---|
| Old Part Number | 0186740 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exhaust Tube |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI 300D, HEATER-INDIRECT, DIESEL, -20° | HI300D | 5000620866 |
| HI 110HD D Indirect Air Heater, Diesel | HI110HD D | 5000620864 |
| HI 300HD D Indirect Air Heater, Diesel | HI300HDD | 5000620867 |
| HI 110D, HEATER-INDIRECT, DIESEL, -20° | HI110D | 5000620915 |
| HI 200 D Indirect Air Heater | HI200D | 5000620865 |
| HI 200HD D Indirect Air Heater | HI200HDD | 5000620916 |
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.
