The Wacker Neuson Piston Ring Set (0.25) is a genuine OEM component designed for the GP3800A and GP3800 series portable generators. As a direct OEM part, is manufactured to the exact dimensions and material tolerances required for these engines, ensuring proper ring-to-bore sealing right out of the box. This 0.25mm oversize set is intended for engines that have been rebored to the corresponding oversize specification, making it an essential component in a proper engine rebuild. Verified fitment covers multiple GP3800A and GP3800 configurations including standard, premium, EPA-compliant, CSA-compliant, and wheel kit variants.
Key Features
- OEM Ring Material and Sizing: — Genuine Wacker Neuson part manufactured to exact oversize (0.25mm) dimensions, delivering the correct compression and oil-control geometry for a properly rebored engine.
- Compression Integrity Restored: — Worn or broken piston rings allow combustion gases to bypass the piston, robbing the engine of power and increasing oil consumption; this set restores full compression and efficient combustion.
- Oversize Rebuild Application: — Specifically sized for engines that have been bored 0.25mm over standard, ensuring the rings seat and seal correctly against the finished cylinder wall.
- Broad GP3800 Series Coverage: — Fits GP3800A and GP3800 generator variants including standard portable, premium, wheel kit, EPA, and CSA models across multiple build configurations.
- Complete Set Convenience: — Supplied as a full piston ring set so all rings are replaced together, preventing mismatched wear patterns that can compromise a fresh engine rebuild.
Piston rings form a dynamic seal between the piston and the cylinder wall, performing three critical jobs: containing combustion pressure above the piston to drive the power stroke, scraping excess oil from the cylinder wall to prevent oil burning, and transferring heat away from the piston into the cylinder. When rings wear, crack, or lose tension, compression drops, oil consumption rises, and the engine may produce excessive smoke or struggle to reach rated output. Replacing them with a correctly sized oversize set during an engine rebuild is essential to restoring the generator to full, dependable power output.
Part Details
| Part Number | 5000217426 |
|---|---|
| Old Part Number | 0217426 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set (0.25) |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Portable Generator | GP3800A | 5000620104, 5000620379, 5000620485, 5000620342, 5000620484 |
| 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.
