The Wacker Neuson Exhaust Disk Insulator is a genuine OEM component designed for the HI260 and HI1000 series indirect air heaters, including diesel, gas, and DGM variants. As a direct source part, is manufactured to the same specifications as the original, ensuring a correct installation without guesswork. This insulator fits across the HI1000 Indirect Air Heater lineup — covering diesel with tank, diesel without tank, gas, and both electric break and surge brake DGM configurations — as well as the HI260 oil heater with tank and the standard HI260 model.
Key Features
- OEM Thermal Barrier Integrity — Manufactured by Wacker Neuson to the same material and heat-resistance grade as the original, maintaining the exhaust system's designed insulation performance.
- Direct-Swap Installation — Matches the original disk profile and mounting points exactly, dropping into place without rework or adaptation of surrounding exhaust components.
- Broad HI-Series Compatibility — Confirmed fitment across HI260 and HI1000 series heaters, including diesel, gas, DGM electric break, and DGM surge brake configurations.
- Sustained Heat Management — A functioning exhaust disk insulator keeps combustion heat directed correctly through the exhaust path; a degraded insulator can cause uneven heat distribution and accelerated wear on adjacent components.
- Combustion System Safety — Proper exhaust insulation on indirect-fired heaters is critical to safe operation; replacing a worn insulator with a genuine OEM part maintains the integrity of the exhaust assembly and reduces the risk of heat transfer to unintended surfaces.
The exhaust disk insulator sits within the exhaust assembly of an indirect-fired heater, acting as a heat barrier between the high-temperature exhaust disk and surrounding components. Its role is to contain and direct exhaust heat safely through the system while protecting adjacent parts from thermal damage. When this insulator degrades or fails, heat can transfer where it should not — leading to accelerated wear on nearby components, reduced heater efficiency, and potential safety concerns during operation.
Part Details
| Part Number | 5200018774 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exhaust Disk Insulator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| HI260 HEATER,OIL WITH TANK | HI260 | 5200018503, 5200018504 |
| HI1000 Indirect Air Heater, Diesel w/Tank | HI1000 | 5200011232, 5200011233, 5200011231 |
| HI1000 Indirect Air Heater, DGM, Electric Break | HI1000DGM | 5200011234, 5200011235, 5100049275, 5100049276 |
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.
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