The Wacker Neuson Piston Complete is a genuine OEM component designed for the LTN4Y and LTN5Y series light towers, including LTN4Y, LTN4Y RH, LTN4Y 60 Hz, LTN4Y 120V/60Hz, LTN4Y SA, LTN5Y, LTN5Yp, LTN5Yp HD, LTN5Ypk, LTN5Ypa, LTN5Y SA, LTN5Y CH, and LTN5Y UK models. Sourced directly from Wacker Neuson, this is a factory-authorized replacement that meets all original production standards for the engine assembly in these units. Installing the correct piston assembly keeps compression where it needs to be, restoring engine output and fuel efficiency across the full range of compatible LTN series light towers.
Key Features
- OEM Compression Integrity — Manufactured to original bore and ring-groove tolerances, ensuring proper cylinder seal and consistent compression on every stroke.
- Drop-In Engine Replacement — Engineered to the same dimensions as the original, this assembly installs directly into the cylinder bore without machining or fitting adjustments.
- Broad LTN Series Compatibility — Fits the full LTN4Y and LTN5Y light tower families, covering standard, SA, RH, CH, UK, HD, 60 Hz, and 120V/60Hz variants under a single part number.
- Restored Engine Performance — A worn or scored piston causes loss of compression, excessive oil consumption, and hard starting; replacing with 5100075810 brings power output and fuel efficiency back to spec.
- Genuine Wacker Neuson Quality — Supplied as an authorized OEM assembly, this piston complete is built from the same materials and processes used in original production, not an approximation of it.
The piston is the reciprocating heart of a four-stroke engine — it travels up and down inside the cylinder bore, compressing the air-fuel mixture and transferring the force of combustion to the crankshaft via the connecting rod. On light tower engines, maintaining proper piston-to-wall clearance is critical: excessive wear causes blow-by, where combustion gases escape past the rings, robbing the engine of power and pushing oil consumption up sharply. A complete piston assembly like the 5100075810 replaces the piston, rings, and pin as a matched unit, making it the most reliable way to restore cylinder integrity during an engine rebuild or top-end service.
Part Details
| Part Number | 5100075810 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Complete |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| LTN5Yp | LTN5Yp | 5100069549 |
| LTN5Y SA | LTN5Y SA | 5100069548 |
| LTN4Y | LTN4Y ME | 5100069545 |
| LTN4Y 60 Hz | LTN4Y 60Hz | 5100069546 |
| LTN4Y SA | LTN4Y SA | 5100069547 |
| LTN4Y | LTN4Y | 5100073603 |
| LTN5Ypk | LTN5Ypk | 5100077880 |
| LTN4Y RH | LTN4Y RH | 5100077620 |
| LTN5Yp HD | LTN5Yp HD | 5100079429 |
| LTN5Y | LTN5Y | 5100069550 |
| LTN5Ypa | LTN5Ypa | 5100069551 |
| LTN5Y CH | LTN5Y CH | 5100069552 |
| LTN5Y UK | LTN5Y UK | 5100069553 |
| LTN4Y 120V/60Hz | LTN4Y 120V/60Hz | 5100075978 |
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.
