Wacker Neuson 5200011098 Rear Duct Insulator G320

The Wacker Neuson Rear Duct Insulator G320 is a genuine OEM component designed for the G320 portable generator series. Sourced directly from Wacker Neuson, this part carries the same specification as the original, ensuring a correct installation in G320 Standard, Cold Weather, Custom, and Mobile generator configurations across Tier 4 and Tier 4 Final emission levels. Confirmed fitment spans the full G320 line, including Transport Canada and international Hertz-rated variants. When the duct insulator degrades or fails, exhaust heat management is compromised — swapping it out with the correct OEM part restores proper thermal performance and protects surrounding components.

Key Features

• Genuine OEM Thermal Specification — Manufactured to Wacker Neuson's exact material and heat-resistance grade for the G320 rear exhaust duct, not a generic approximation.
• Drop-In Replacement — Matches the original mounting profile and duct geometry of the G320, allowing direct installation without rework or modification.
• Broad G320 Coverage — Compatible with Standard, Cold Weather, Custom, and Mobile G320 generator variants across Tier 4, Tier 4 Final, and Transport Canada configurations.
• Protects Adjacent Components — A properly functioning rear duct insulator limits heat transfer to surrounding wiring, hoses, and enclosure panels, extending the service life of nearby parts.
• Supports Correct Airflow Management — Maintains the designed exhaust routing path within the generator enclosure, which is essential for stable operating temperatures under sustained load.

The rear duct insulator sits within the generator's exhaust air routing system, lining the rear duct to limit heat transfer to the surrounding enclosure and components. On a machine like the G320 — a high-output portable generator used in demanding site conditions — controlling heat within the enclosure is critical to sustained, stable operation. When the insulator deteriorates, excess heat can migrate to adjacent wiring, fuel lines, and structural panels, accelerating wear and creating the risk of heat-related damage. Replacing a worn or damaged insulator promptly keeps the thermal management system working as designed.

Part Details

Compatibility & Fitment

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.