The Wacker Neuson Oversized Ring Set is a genuine OEM component designed for the CRT48-31V series 48-inch ride-on concrete trowels. This set delivers the dimensional accuracy required for engine rebuilds where cylinder bores have been machined oversize, restoring proper compression and sealing performance across the engine assembly. Confirmed fitment includes the CRT48-31V, CRT48-31V-H High Speed, CRT48-31V-E, CRT48-31V-ES-E, and CRT48-31V-ES Electronic Steering models. As a genuine Wacker Neuson part, the is sourced directly from the original manufacturer to match the exact tolerances of the engine it was engineered for.
Key Features
- OEM-Matched Ring Dimensions — Manufactured to the exact oversize specification required after cylinder bore machining, ensuring proper ring-to-wall seal and consistent compression across all cylinders.
- Drop-In Engine Rebuild Fit — Engineered to install directly onto oversize pistons without additional machining or fitting, streamlining the engine rebuild process.
- Broad CRT48-31V Series Coverage — Compatible with five CRT48-31V model variants, including the High Speed and Electronic Steering configurations, making this a versatile rebuild component across the 48-inch ride-on trowel lineup.
- Restores Full Compression and Power — Worn or broken piston rings cause blow-by, oil consumption, and loss of engine power; a correctly sized replacement set brings combustion efficiency back to spec so the trowel delivers consistent rotor torque and finishing performance.
- Genuine Wacker Neuson Part — Sourced from the original manufacturer, this set carries the same material grade and dimensional standards as the rings installed at the factory, supporting a long-lasting engine rebuild.
Piston rings seal the combustion chamber between the piston and the cylinder wall, controlling compression, regulating oil consumption, and transferring heat away from the piston. In a ride-on trowel engine, worn or damaged rings allow combustion gases to bypass the piston — a condition known as blow-by — which leads to lost power output, excessive oil burning, and accelerated internal wear. An oversized ring set is used specifically when the cylinder bore has been bored out to a larger diameter during a rebuild; using rings matched to that oversize bore re-establishes the tight seal needed for efficient combustion and reliable engine operation.
Part Details
| Part Number | 5000157800 |
|---|---|
| Old Part Number | 0157800 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Oversized Ring Set |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 1220mm/48in Ride-on Trowel | CRT48-31V | 5000620476 |
| 1220mm/48in High Speed Ride-On Trowel | CRT48-31V-H | 5000009086 |
| Ride-on Trowel | CRT48-31V-E | 5000009481 |
| Ride-on Trowel | CRT48-31V-ES-E | 5000009482 |
| 1220mm/48in Ride-on Trowel, El ectronic Steering | CRT48-31V-ES | 5000009216 |
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.
