Wacker Neuson 5200012812 Fuel Filter with Water Separator

The Wacker Neuson 5200012812 is a genuine OEM Fuel Filter with Water Separator designed for the G70, G100, and G120 series portable generators. As a direct OEM replacement, this part is manufactured to the same specification as the original component installed at the factory, ensuring a correct, hassle-free installation on T4i and URI HVAC-equipped units across the G70, G100, and G120 generator families. Wacker Neuson part number 5200012812 covers a broad range of configurations including Standard, Cold Weather, Custom, Extended Run, and Hertz variants, making it the right choice for fleet operators and service technicians working across multiple G-series units.

Key Features

• Genuine OEM Filtration Media — Built to the original fuel system specification, this filter delivers the same micron-level fuel cleanliness and water separation efficiency as the factory-installed unit, protecting injectors and the fuel delivery system from contamination.
• Integrated Water Separator — The combined filter and water separator design removes free water from the fuel supply before it reaches the engine, preventing corrosion, rough running, and hard starts — especially critical in Cold Weather and Extended Run configurations.
• Direct Drop-In Replacement — Engineered to match OEM thread pitch, port sizing, and filter housing dimensions, allowing straightforward installation with standard service tools and no system modification.
• Broad G-Series Compatibility — Confirmed fit across G70, G100, and G120 T4i generator variants including Standard, Custom, Cold Weather, Extended Run, Hertz, and URI HVAC configurations.
• Fuel System Integrity — A clogged or degraded fuel filter restricts flow to the engine, causing power loss, stalling, and potential generator shutdown under load. Replacing on schedule with the correct OEM part keeps output stable and protects downstream components.
• Verified Wacker Neuson Part Number — Ordering by OEM part number 5200012812 eliminates the risk of fitment errors across similar-looking but incompatible filter assemblies in the G-series lineup.

The fuel filter with water separator performs two essential functions in the generator's fuel system: it removes particulate contaminants that could damage precision fuel injection components, and it separates water that naturally accumulates in diesel fuel through condensation or handling. Water in diesel fuel can cause corrosion, microbial growth, and injector damage if left unchecked. When this filter becomes blocked or its water separation capability is exhausted, fuel flow is restricted and the engine may run roughly, lose power, or fail to start — making timely replacement with the correct OEM part a critical part of routine generator maintenance.

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.