The Wacker Neuson is a genuine OEM Idler Axle designed for the G25 Mobile Generator series and MGT1 Mobile Generator Trailer configurations. As a factory-sourced component, this Idler Axle is manufactured to the same specifications as the original part installed at the factory, ensuring a correct, confidence-inspiring fit across the full range of G25 variants — including Custom, Skid-Mounted, Cold Weather, Standard T4i, T4F, and 600V switchable T4i models. Whether your unit is a standard skid-mounted generator or a trailered configuration using the MGT1 platform, part number is the verified OEM replacement.
Key Features
- Factory-Matched Axle Geometry — Manufactured to original dimensional tolerances so the axle seats correctly in the trailer hub assembly without adjustment or shimming.
- Genuine OEM Sourcing — Supplied directly through Wacker Neuson's authorized parts network, ensuring the 5000155909 meets the same material and hardness specifications as the original component.
- Broad G25 Series Coverage — Confirmed fitment across Custom, Skid-Mounted, Cold Weather, Standard T4i, T4F, and 600V switchable T4i variants of the G25 Mobile Generator, plus MGT1 Mobile Generator Trailer models.
- Structural Load Integrity — A correctly spec'd idler axle maintains proper wheel bearing alignment and load distribution; a worn or undersized replacement can accelerate bearing and hub failure during transport.
- Transportation Safety — On trailered generator units like the MGT1, the idler axle is a load-bearing safety component. Using a verified OEM replacement is critical to maintaining trailer roadworthiness and safe towing compliance.
The idler axle is the fixed spindle on which the trailer's non-driven wheel hub and bearing assembly rotate. On mobile generator trailers such as the MGT1, it carries the static and dynamic load of the unit during transport, keeping the wheel assembly correctly aligned and the hub bearing properly supported. When an idler axle wears, bends, or develops surface damage, it compromises bearing seating and can lead to uneven tire wear, hub looseness, or wheel separation — all of which pose serious risks during road towing. Replacing a damaged axle with the correct OEM part restores the full structural integrity of the trailer running gear.
Part Details
| Part Number | 5000155909 |
|---|---|
| Old Part Number | 0155909 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Idler Axle |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Mobile Generator, Custom | G25 | 5000620346, 5000620344, 5000620345, 5000620642, 5000009466, 5000620004, 5000620640, 5000620641, 5000009368, 5200005557, 5200003991, 5000620931, 5200001316, 5200014461, 5000009258, 5200014460, 5200014462, 5000621005, 5100022834, 5000009462, 5000009476, 5100042507, 5100042512, 5100042509, 5100025836, 5100042508 |
| MGT1 Mobile Generator Trailer, No Brake, 3500LB Axle, 2" Ball Hitch | MGT1 | 5000009298, 5000620332 |
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
Wacker Neuson 5000155615 2000 Lb Idler Hub Axle Assembly
