The Wacker Neuson Piston Ring Set (Standard) is a genuine OEM component designed for the PTS4V 100mm/4in Centrifugal Trash Pump. As a direct factory part, it meets the exact material and dimensional specifications required for correct engine sealing and compression in this pump series. Installing the correct standard-bore ring set helps restore lost power and keeps the engine running at its rated output. Cross-reference part number against your pump's serial plate before ordering to confirm fitment.
Key Features
- OEM-Grade Ring Material — Cast to the same alloy and surface finish spec as the original rings, ensuring proper seating against the cylinder bore and consistent oil control from the first startup.
- Standard Bore Sizing — Sized for a standard, un-bored cylinder; drop-in replacement for worn rings without the need for cylinder regrinding, provided bore wear is within tolerance.
- Confirmed PTS4V Fitment — Engineered specifically for the PTS4V 100mm/4in Centrifugal Trash Pump; verify your model number before purchase to ensure a correct match.
- Compression Restoration — Worn or broken piston rings allow combustion gases to bypass the piston, robbing the engine of power and increasing oil consumption; a fresh ring set restores proper cylinder pressure and engine output.
- Fuel System Efficiency — Proper ring seal supports correct air-fuel combustion, helping the pump maintain its rated flow performance and preventing excessive fuel burn during operation.
Piston rings form the dynamic seal between the piston and the cylinder wall, keeping combustion pressure above the piston where it belongs while controlling the thin film of oil that lubricates the bore. When rings wear, crack, or lose tension, combustion gases escape past the piston — a condition known as blow-by — which reduces power output, increases oil consumption, and can cause rapid internal engine damage. Replacing a worn ring set with the correct standard-size Wacker Neuson 5100031491 Piston Ring Set (Standard) restores that seal, bringing the engine back to its designed compression level and protecting the cylinder bore from further wear.
Part Details
| Part Number | 5100031491 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Ring Set (Standard) |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 100mm/4in Centrifugal Trash Pu mp | PTS4V | 5100031221 |
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.
