The Wacker Neuson is a genuine OEM Fuel Hose 5/16 x 300mm designed for the G25 and G20 series portable generators. As a direct factory replacement, this hose is manufactured to the exact inner diameter and length required by the G25 fuel system across all major configurations — including Standard, Cold Weather, Custom, Extended Run Tank, and Tier 4i and Tier 4 Final variants. Sourced directly from Wacker Neuson, part carries the same specification as the hose installed at the factory, ensuring a correct connection between fuel system components without modification. Whether you're servicing a skid-mounted G25, a cold-weather unit, or a G20 mobile generator, this is the correct hose for the job.
Key Features
- OEM-Spec Inner Diameter: — Cut to the exact 5/16-inch bore required by the G25 and G20 fuel delivery circuits, maintaining proper fuel flow rate and a leak-free connection.
- Correct 300mm Routed Length: — Factory-specified 300mm length ensures the hose seats and routes properly between fuel system fittings without tension, kinking, or slack.
- Broad G25 and G20 Coverage: — Fits Standard, Cold Weather, Custom, Extended Run Tank, T4i, T4 Final, and 600-Volt switchable G25 configurations, as well as G20 mobile generator variants.
- Fuel System Integrity: — A cracked or hardened fuel hose causes fuel seepage, air ingestion, and rough or failed starting. Replacing with the correct OEM hose restores a sealed, consistent fuel supply to the engine.
- Fuel System Safety: — A properly rated and correctly fitted fuel hose is essential on generator applications where fuel vapors near ignition sources pose a fire risk. Using the genuine OEM hose maintains the integrity of the original fuel circuit design.
The fuel hose routes liquid fuel from the tank or fuel shutoff valve to the carburetor or fuel injection system, maintaining a steady, sealed supply for engine operation. At 5/16-inch inside diameter and 300mm in length, this hose must match the original specification exactly — an undersized bore restricts flow and starves the engine under load, while an oversized or poorly fitted hose creates seeping connections and potential vapor hazards. Over time, fuel hoses harden, crack, or soften from heat and fuel exposure, leading to leaks or air ingestion that causes hard starting, rough running, or complete engine shutdown on the generator.
Part Details
| Part Number | 5000159373 |
|---|---|
| Old Part Number | 0159373 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Fuel Hose 5/16 x 300mm |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator, Custom | G25 | 5000620346, 5000620344, 5000620345, 5000620642, 5000009466, 5000620004, 5000620640, 5000620709, 5000620641, 5000009368, 5200005557, 5200003991, 5000620931, 5200001316, 5200014461, 5200014460, 5200014462, 5000621005, 5000620706, 5100022834, 5100042507, 5100042510, 5100042512, 5100042509, 5100025836, 5100042508 |
| Mobile Generator | G20 | 5200016628, 5200022625 |
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.
