The Wacker Neuson Crankshaft is a genuine OEM crankshaft designed for the GP3800A, G3.3A, G3.3AE, G3.3AI, G3.3AIT, and G3.7A series portable generators. This is a direct OEM replacement sourced from Wacker Neuson, ensuring the part meets the same tolerances and specifications as the original component installed at the factory. Fitment covers a wide range of GP3800A and G3.x series configurations, including standard, premium, wheel kit, 50Hz, and EPA/CSA-compliant variants. If you are servicing one of these generator models, part number is the correct crankshaft for the job.
Key Features
- OEM-Grade Dimensional Accuracy — Machined to the exact stroke and journal dimensions of the original, maintaining correct bearing clearances and compression geometry throughout the engine.
- Drop-In Engine Compatibility — Engineered to align directly with the connecting rod, main bearings, and flywheel assembly as originally configured, with no re-machining or fitment adjustments needed.
- Broad Model Coverage — A single part number covers GP3800A, G3.3A, G3.3AE, G3.3AI, G3.3AIT, and G3.7A generator variants, including 50Hz, EPA, and CSA configurations.
- Restored Power Output Consistency — A correctly fitted crankshaft maintains proper piston timing and stroke, which is essential for stable voltage and frequency output in a portable generator.
- Genuine Wacker Neuson OEM Part — Supplied as a genuine OEM component under part number 5000089274, confirming authenticity and correct specification for these generator families.
The crankshaft is the central rotating component of the engine, converting the up-and-down motion of the piston into the rotational force that drives the generator's alternator. In a portable generator, consistent crankshaft rotation is directly tied to stable electrical output — any imbalance, wear on the journals, or dimensional deviation can cause irregular engine speed, increased vibration, and fluctuating voltage that can damage connected equipment. A worn or damaged crankshaft typically presents as excessive engine vibration, knocking, oil leaks at the main seals, or an engine that will not maintain governed speed under load.
Part Details
| Part Number | 5000089274 |
|---|---|
| Old Part Number | 0089274 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Crankshaft |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Generator | GP3800A | 5000620104, 5000620379, 5000620485, 5000620342, 5000620484, 5000620041, 5000620103, 5000620010 |
| 50Hz Portable Generator | G3.3A | 5000008257, 5000008253, 5000008255, 5000008251 |
| 50Hz Portable Generator | G3.3AE | 5000008258, 5000008252, 5000008254, 5000008256, 5000008259 |
| Portable Generator | G3.7A | 5000007189, 5000008044 |
| Portable Generator, 50Hz | G3.3AI | 5000009036 |
| Portable Generator | G3.3AIT | 5000009460 |
| GP3800A Generator, EPA | GP3800 | 5000620974, 5000620975, 5000620976 |
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.
