The Wacker Neuson Set of Piston Rings is a genuine OEM set of piston rings designed for the BS62-4A and BS68-4A series rammer compactors, including standard, Ab, and CN variants. As a factory-sourced component, this set delivers the exact ring dimensions, material grade, and gap tolerances specified for the original engine build — ensuring a proper seal against the cylinder wall from the first start. Wacker Neuson genuine OEM parts are manufactured to the same standards as the components installed at the factory, giving you a direct, confidence-backed repair. This set covers a broad range of BS62-4A and BS68-4A configurations, including Sunbelt variants, making it the correct solution across the full model family.
Key Features
- Engineered Ring Geometry — Manufactured to OEM-specified ring width, thickness, and end-gap tolerances for a consistent, leak-free seal against the cylinder bore.
- Direct Engine Rebuild Fit — Drops into place on the piston with no re-machining or cylinder modification required, aligning with the factory groove dimensions of BS62-4A and BS68-4A engines.
- Broad BS-Series Compatibility — Fits multiple BS62-4A and BS68-4A variants, including Ab, CN, and Sunbelt configurations, so one part number covers the full rammer family.
- Restored Compression and Power — Worn rings allow combustion gases to bypass the piston, causing loss of compression, hard starting, and weak impact force. Fresh rings restore the pressure needed for full tamping performance.
- Reduced Oil Consumption — Correctly seated rings prevent oil from entering the combustion chamber, stopping excessive smoke and protecting the engine from accelerated wear.
Piston rings form a dynamic seal between the piston and the cylinder wall, performing two critical jobs: keeping combustion pressure above the piston where it generates power, and controlling the thin film of oil that lubricates the cylinder bore. As rings wear, that seal weakens — compression drops, the engine loses power, oil consumption rises, and the exhaust begins to smoke. On a rammer compactor, where engine output is directly tied to impact force, even moderate ring wear translates into noticeably reduced compaction performance. Replacing the rings with a correctly sized, OEM-specification set restores the combustion seal and allows the engine to return to full rated output.
Part Details
| Part Number | 5100073591 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Set of Piston Rings |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BS62-4Ab/28 | BS62-4Ab/28 | 5100061966, 5100070526 |
| BS68-4Ab/28 | BS68-4Ab/28 | 5100061970, 5100070525, 5100070527 |
| BS62-4A/28 | BS62-4A/28 | 5100068373 |
| BS68-4A/28 | BS68-4A/28 | 5100068375 |
| BS68-4A/28 CN | BS68-4A/28 CN | 5100070152 |
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.
