The Wacker Neuson Shaft is a genuine OEM component designed for the GP3800A, GP4000, GP5600A, GP6600A, GPS5600A, and GPS6600A series portable generators. As a direct Wacker Neuson OEM part, the is manufactured to the exact tolerances and material specifications required for proper function within the generator's drivetrain. This shaft spans an extensive range of GP and GPS series configurations — including standard, wheel kit, electric start, CARB, CSA, and EPA-compliant variants — making it one of the most widely applied internal components across the Wacker Neuson portable generator lineup. Confirm your model number before ordering to ensure correct fitment for your specific unit.
Key Features
- Exact OEM Dimensional Tolerancing — Machined to the precise diameter, length, and keyway specifications required for correct engagement within the generator's rotating assembly — no guesswork on clearances.
- Genuine Wacker Neuson OEM Part — Sourced directly from Wacker Neuson, this shaft carries the same material grade and heat treatment as the original, ensuring consistent rotational load handling over the service life of the unit.
- Broad GP and GPS Series Coverage — Fits GP3800A, GP4000, GP5600A, GP6600A, GPS5600A, and GPS6600A portable generators across standard, wheel kit, electric start, CARB, CSA, and EPA configurations.
- Restores Full Power Transfer — A worn or damaged shaft causes misalignment, vibration, or complete loss of mechanical drive; replacing it with the correct OEM part restores smooth, efficient power transmission through the generator.
- Drop-In Fitment on Supported Models — Designed to mate directly with existing bearings, housings, and drive components on supported GP and GPS models without rework or adaptation.
The shaft is a core mechanical component within the generator's rotating drivetrain, transmitting torque from the engine to the alternator or driven assembly. It must maintain precise concentricity and surface integrity to keep all connected rotating parts running in correct alignment. When a shaft becomes worn, bent, or develops surface damage at bearing journals or keyways, the result is excessive vibration, bearing wear, loss of output efficiency, or mechanical failure — making timely replacement critical to keeping the generator producing reliable power output.
Part Details
| Part Number | 5000161265 |
|---|---|
| Old Part Number | 0161265 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Shaft |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Premium Portable Generator | GP5600A | 5000620094, 5000620095, 5000620381, 5000620382, 5000620326, 5000620327, 5000620984, 5000620979, 5000620980, 5000620042, 5000620043, 5000620091, 5000620092, 5000620011, 5000620012 |
| GPS5600A,CAN GFI | GPS5600A | 5000620096, 5000620383, 5000620328, 5000620981, 5000620982, 5000620044, 5000620093, 5000620013 |
| GP6600A GENERATOR,CAN GFI | GP6600A | 5000620100, 5000620101, 5000620384, 5000620329, 5000620330, 5000620045, 5000620046, 5000620097, 5000620098, 5000620014, 5000620015 |
| GPS6600A GENERATOR,CAN GFI | GPS6600A | 5000620102, 5000620386, 5000620331, 5000620047, 5000620099, 5000620016 |
| Portable Generator | GP3800A | 5000620104, 5000620379, 5000620485, 5000620342, 5000620484, 5000620041, 5000620103, 5000620010 |
| Premium Portable Generator | GP6600 | 5000620385, 5000620989, 5000620990, 5000620985, 5000620986 |
| Premium Portable Generator | GP4000 | 5000620090, 5000620380, 5000620977, 5000620978, 5000620089 |
| GPS6600A Generator, CSA | GPS6600 | 5000620988 |
| GP3800A Generator, EPA w/Wheel Kit | GP3800 | 5000620976, 5000620974, 5000620975, 5100031174 |
| GP5600A Generator, EPA w/Wheel Kit | GP5600 | 5000620983 |
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.
