The Wacker Neuson 9490-000-7920 Exhaust Insulator is a genuine OEM component designed for the G70, G100, G120, G130, and G150 portable generator series. As a direct factory replacement, this insulator maintains the correct thermal barrier between the exhaust system and surrounding components, helping protect nearby parts and the enclosure from heat damage. Sourced directly from Wacker Neuson, part number 9490-000-7920 delivers the exact fit and material specification required for these generators across Standard, Cold Weather, Custom, Extended Run, Hertz, and URI HVAC configurations.
Key Features
- OEM-Grade Heat Resistance — Manufactured to Wacker Neuson's thermal material specification, ensuring the insulator withstands the sustained exhaust temperatures typical of continuous-duty generator operation.
- Drop-In Replacement — Mounts in the same position as the original, using existing hardware and attachment points for a straightforward service swap on supported G-series generators.
- Broad G-Series Compatibility — Fits a wide range of G70, G100, G120, G130, and G150 generator configurations, including T4i, T4F, Cold Weather, Custom, and URI HVAC variants.
- Protects Adjacent Components — A correctly functioning exhaust insulator shields wiring, hoses, and structural panels from radiant heat; a degraded insulator can allow heat soak that accelerates wear on nearby parts.
- Heat and Fire Safety Relevance — On generator equipment, proper exhaust insulation is a recognized safeguard against heat-related damage and unintended ignition of combustible materials near the exhaust path.
The exhaust insulator acts as a thermal buffer between the engine's exhaust system and the surrounding structure of the generator enclosure. By containing and directing radiated heat away from vulnerable components — such as fuel lines, electrical wiring, and plastic panels — it plays a direct role in the long-term integrity of the machine. When the insulator deteriorates or is missing, excessive heat transfer can cause premature failure of adjacent parts and create conditions that may pose a fire hazard in enclosed or confined worksites.
Part Details
| Part Number | 9490-000-7920 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Exhaust Insulator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generators | G100 | 5200001319, 5200006900, 5200003859, 5200003857, 5200003858, 5200008716, 5100045086, 5100045498, 5100033310, 5100045499, 5100045553, 5100045554, 5100045555, 5100033311, 5100049835, 5100049836, 5100049837, 5100033312, 5100036307 |
| Mobile Generators | G120 | 5200001320, 5200006901, 5200003856, 5200003854, 5200003855, 5200008715 |
| G70 Generator, Custom T4i | G70 | 5200003975, 5200003973, 5200003974, 5200004151, 5200008719, 5200023226, 5200023227, 5200023228, 5100025262, 5100042499, 5100036306, 5100042496, 5100042497, 5100042498, 5100042500 |
| G150 Generator, Standard T4i | G150 | 5200023235, 5200023236, 5200023237, 5100045088, 5100045570, 5100045571, 5100049841, 5100049842, 5100049843, 5100036309 |
| G130 Generator, Standard T4i | G130 | 5200023232, 5200023233, 5200023234, 5100045087, 5100045559, 5100045560, 5100045564, 5100045565, 5100045566, 5100049838, 5100049839, 5100049840, 5100036308 |
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.
