The Wacker Neuson Piston.75 is a genuine OEM component designed for the GP5600A and GPS5600A series portable generators. As a factory-sourced part, the is manufactured to the exact tolerances and material specifications required for proper engine operation in these units. This piston fits across multiple GP5600A and GPS5600A configurations, including standard, CARB GFI, CAN GFI, and electric start variants, making it the correct choice whether you're servicing a base model or a premium wheeled unit. When it's time for an engine rebuild or piston replacement, sourcing the genuine Wacker Neuson part ensures the repair is done right the first time.
Key Features
- OEM Bore Tolerancing — Manufactured to the precise bore diameter and ring groove dimensions required for correct compression and cylinder seal in the GP5600A and GPS5600A engine.
- Direct Engine Replacement — Engineered as a drop-in fit for the existing cylinder bore; installs with OEM piston pin and ring hardware without modification to the engine block.
- Broad Series Coverage — Fits multiple GP5600A and GPS5600A configurations including standard, CARB GFI, CAN GFI, electric start, and wheel kit variants.
- Sustained Power Output — A correctly seated piston maintains cylinder compression, enabling the generator to deliver its rated 5600-watt output consistently. A worn or failed piston causes compression loss, rough running, and power drop-off.
- Genuine Wacker Neuson Part — Sourced directly from Wacker Neuson, so material grade, ring land geometry, and piston weight all match the original engine specification exactly.
The piston is the reciprocating component at the heart of the engine's power stroke. It travels up and down inside the cylinder bore, compressing the air-fuel mixture on the upstroke and transferring combustion force to the crankshaft via the connecting rod on the downstroke. A properly functioning piston maintains a tight seal against the cylinder wall through its piston rings, which is critical for holding compression and controlling oil consumption. When a piston wears, cracks, or scores, compression drops, the engine loses power, oil may enter the combustion chamber, and continued operation risks more extensive internal damage.
Part Details
| Part Number | 5000217439 |
|---|---|
| Old Part Number | 0217439 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston .75 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GPS5600A,CAN GFI | GPS5600A | 5000620096, 5000620383, 5000620328, 5000620981 |
| Premium Portable Generator | GP5600A | 5000620094, 5000620095, 5000620326, 5000620327, 5000620381, 5000620382 |
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.
