The Wacker Neuson is a genuine OEM 3/8 Bspt X 1/8 Npt Fitting designed for G25, G20, and G12 series mobile generators. As a factory-sourced component, it is manufactured to the exact thread form, taper, and dimensional specifications used in original production, ensuring a leak-free connection in the generator's fluid or fuel circuit. This fitting is confirmed for a wide range of G25 configurations including Standard, Custom, Cold Weather, Extended Run, and T4i/T4F emissions-compliant variants, as well as select G20 and G12 skid-mounted units.
Key Features
- Correct Thread Specification: — Combines a 3/8 BSPT (British Standard Pipe Taper) male end with a 1/8 NPT (National Pipe Taper) female end, matching the exact adapter configuration used at the factory.
- Genuine OEM Component: — Sourced directly from Wacker Neuson, this fitting meets the same material grade and thread-form tolerances as the part it replaces, ensuring a properly sealed joint without the need for improvised adapters.
- Broad G25 Series Coverage: — Fits skid-mounted, custom, cold weather, extended run tank, T4i, T4F, and 600V switchable G25 generator variants, plus compatible G20 and G12 mobile generator configurations.
- Leak-Free Fluid Circuit Integrity: — A correctly installed fitting maintains pressure integrity in the connected line; a worn, cross-threaded, or incorrect fitting risks fluid loss, pressure drop, or generator shutdown.
- Fuel and Fluid System Safety: — Fittings in generator fuel or oil circuits that fail or weep present a fire and contamination risk; using the correct OEM-spec part supports safe, code-compliant operation in rental and jobsite environments.
A pipe fitting adapter bridges two different thread standards within a machine's plumbing circuit — in this case converting between BSPT and NPT thread forms. In a portable generator, fittings like the 5000154303 are used at connection points in the fuel delivery or oil system where components with different thread standards must mate securely. Because BSPT and NPT threads share a similar taper angle but differ in thread form and pitch, using a mismatched or non-spec fitting can result in an incomplete seal, leading to fluid seepage, pressure loss, or system contamination. Replacing a damaged or leaking fitting with the correct OEM part restores full circuit integrity and keeps the generator operating safely.
Part Details
| Part Number | 5000154303 |
|---|---|
| Old Part Number | 0154303 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | 3/8 Bspt X 1/8 Npt Fitting |
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, 5000009258, 5200014460, 5200014462, 5000621005, 5000008228, 5000620706, 5100022834, 5000009462, 5000009476, 5100042507, 5100042510, 5100042512, 5100042509, 5100025836, 5100042508 |
| Mobile Generator, Skid Mounted | G12 | 5000008227 |
| 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.
Wacker Neuson