The Wacker Neuson is a genuine OEM Piston Ring Set 0.50 designed for PT3A 75mm/3-inch centrifugal trash pumps and GP3800A portable generators. As a direct OEM replacement sourced through Wacker Neuson's authorized parts program, delivers the exact dimensional tolerances and material specification required for a proper engine rebuild. This oversize 0.50 ring set is intended for use during cylinder honing or bore reconditioning, making it the correct choice when standard-dimension rings are no longer sufficient. Confirm your model number before ordering to ensure this set matches your engine's rebored cylinder diameter.
Key Features
- OEM-Spec Ring Geometry — Manufactured to Wacker Neuson's exact radial wall thickness and end-gap tolerances, ensuring correct sealing pressure against a reconditioned bore.
- 0.50 Oversize Dimension — Matched to a 0.50mm overbore specification; intended for use after cylinder honing where the standard bore has been enlarged to restore a round, true surface.
- Broad Model Coverage — Fits PT3A centrifugal trash pump variants and GP3800A portable generator variants, covering a wide range of Wacker Neuson serial configurations within those families.
- Compression Integrity Restored — Worn or broken piston rings allow combustion gases to bypass the piston, robbing the engine of power and contaminating crankcase oil; a correctly fitted ring set restores compression and engine efficiency.
- Fuel System Safety Relevance — Proper ring seating prevents oil blow-by and reduces the risk of crankcase pressure buildup, which can affect fuel mixture and exhaust emissions on carbureted engines.
Piston rings seal the gap between the piston and the cylinder wall, controlling combustion pressure above the piston while regulating oil consumption below it. A healthy ring set allows the engine to build full compression on every stroke, translating directly into starting reliability and output power. When rings wear, crack, or lose tension, compression drops, oil consumption rises, and the engine may produce blue smoke, run rough, or fail to develop rated power — all of which directly affect pump flow rate or generator output.
Part Details
| Part Number | 5000162623 |
|---|---|
| Old Part Number | 0162623 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set 0.50 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| PT3A | PT3A | 5000009101, 5000009240, 5000009098, 5000620800 |
| Portable Generator | GP3800A | 5000620104, 5000620041, 5000620103, 5000620010, 5000620379, 5000620485 |
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.
