Wacker Neuson 5000404174 Carburetor Insulator Plate

The Wacker Neuson Carburetor Insulator Plate is a genuine OEM component designed for ML440 Light Towers and MG5 series Portable Generators. As a direct OEM replacement, part is manufactured to the exact material and dimensional specifications of the original, ensuring a correct, trouble-free installation between the carburetor and the engine intake. This genuine Wacker Neuson part covers an extensive range of ML440 and MG5 configurations, including MG5sd and MG5d variants, making it a reliable choice for fleet maintainers and service technicians working across multiple units.

Key Features

• OEM Heat and Fuel Resistance: — Manufactured from the same heat-resistant, fuel-impervious material as the original, maintaining the thermal barrier between the carburetor and engine block across extended run cycles.
• Drop-In Carburetor Mounting Fit: — Matches the original bolt pattern and gasket face dimensions exactly, seating correctly between the carburetor and intake manifold with no trimming or modification.
• Broad ML440 and MG5 Coverage: — Fits multiple ML440 Light Tower configurations and a wide range of MG5, MG5sd, and MG5d Portable Generator models, consolidating your parts inventory across Wacker Neuson equipment.
• Protects Carburetor Calibration: — A correctly seated insulator plate isolates the carburetor from engine heat, preventing fuel vaporization in the carb body and protecting air-fuel mixture accuracy for consistent starts and stable power output.
• Fuel System Integrity: — A cracked or deteriorated insulator plate can introduce unmetered air into the fuel circuit, leading to lean running conditions and potential engine damage — replacing it promptly restores proper fuel system sealing.

The carburetor insulator plate sits between the carburetor mounting flange and the engine intake, acting as a thermal and sealing barrier. Its primary job is to block engine heat from transferring into the carburetor body, which prevents fuel from vaporizing before it enters the combustion chamber — a condition that causes hard starts, rough idle, and erratic power delivery. When the plate cracks, warps, or loses its sealing surface, heat soak and air leaks compromise the fuel mixture, and performance deteriorates quickly; replacing a worn plate restores the engine's ability to meter fuel correctly and run at steady output.

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.