The Wacker Neuson Piston 0.25 is a genuine OEM oversize piston designed for a broad range of Wacker Neuson equipment sharing a common engine platform, including the CRT48-34V ride-on trowel, the CT48-13A-V walk-behind trowel, the GP6600A and GP6600 portable generators, the GPS6600A generator, the GV6600A value generator, and the BFS 1318AS self-propelled walk-behind saw. As a genuine OEM component, it is manufactured to the exact tolerances required for proper fit and engine sealing within the cylinder bore. The 0.25 oversize designation makes this the correct piston for engines that have been bored out by 0.25mm to restore cylinder integrity after wear. Sourcing the correct oversize specification is critical — installing a standard-size piston in a bored cylinder will result in improper compression and accelerated engine failure.
Key Features
- Exact Oversize Specification: — The 0.25 oversize dimension matches engines bored to the first oversize, ensuring correct piston-to-wall clearance and full compression restoration.
- Genuine OEM Construction: — Manufactured to Wacker Neuson's original material and dimensional standards, including ring groove geometry and pin bore tolerancing critical to engine longevity.
- Broad Cross-Platform Fitment: — Compatible with CRT48-34V ride-on trowels, CT48-13A-V walk-behind trowels, GP6600A, GP6600, GPS6600A, and GV6600A generators, and the BFS 1318AS saw.
- Compression Integrity Restored: — A correctly sized piston maintains the combustion seal needed for full power output; a mismatched or worn piston causes blow-by, oil consumption, and hard starting.
- Engine Rebuild Confidence: — Using the correct OEM oversize piston during a cylinder bore service ensures the engine returns to proper operating condition without repeated teardowns.
The piston is the moving component inside the engine cylinder that transfers combustion energy into crankshaft rotation. It must seal tightly against the cylinder wall via piston rings to maintain compression — without that seal, the engine loses power, burns oil, and eventually fails to start or run under load. When a cylinder bore becomes worn or scored, the bore is machined oversize and a matching oversize piston is installed to restore the correct clearance. The 0.25 oversize designation on part 5000162636 identifies it as the first-step oversize replacement, making it the appropriate choice for engines that have undergone a standard first bore during rebuild service.
Part Details
| Part Number | 5000162636 |
|---|---|
| Old Part Number | 0162636 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston 0.25 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 1220mm/48in Ride-on Trowel | CRT48-34V | 5000620805, 5000620075, 5200004935 |
| GPS6600A GENERATOR,CAN GFI | GPS6600A | 5000620102, 5000620386, 5000620331 |
| CT48-13A-V Trowel | CT48-13A-V | 5000009452, 5000620836 |
| GP6600A GENERATOR,CAN GFI | GP6600A | 5000620100, 5000620101, 5000620329, 5000620330, 5000620384, 5000620045, 5000620046, 5000620097, 5000620098, 5000620014, 5000620015 |
| Premium Portable Generator | GP6600 | 5000620385 |
| G 7AI | G7AI | 5000009104 |
| Self-propelled Walk-behind Saw | BFS 1318AS | 5000620085 |
| GPS6600A Generator, CSA | GPS6600 | 5000620988 |
| Value Generator, 60Hz | GV6600A | 5000620289, 5000620336 |
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.
