The Wacker Neuson Piston is a genuine OEM component designed for the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX Backhoe Loader series. As a direct OEM replacement, this piston is manufactured to the same specification as the original part, ensuring a correct, verified fit within the engine assembly. Sourced directly through Wacker Neuson's authorized parts program, the is the right choice when precision and durability cannot be compromised. Confirm your model number before ordering to ensure compatibility with your specific machine configuration.
Key Features
- OEM-Spec Dimensional Accuracy — Manufactured to exact bore diameter, ring groove depth, and pin bore tolerances required for correct engine compression and sealing in Wacker Neuson backhoe loader engines.
- Direct-Fit Installation — Drops into the existing cylinder bore with no machining or modification to the block, matching the original piston's crown profile and compression height.
- Broad Backhoe Loader Coverage — Compatible with the BL744ch, BL744h, BL742h, BL744c, BL744 EX, and BL742 EX series, covering both standard and EX configuration machines.
- Sustained Engine Output — A correctly fitted piston maintains proper compression ratios, supporting full hydraulic and drivetrain performance across the loader's operating range. A worn or damaged piston leads to compression loss, increased oil consumption, and power drop-off.
- Genuine Wacker Neuson OEM Part — Backed by Wacker Neuson's parts program, this is the same component built into the machine at the factory — not an approximation of it.
The piston is a core reciprocating component inside the engine's cylinder, converting the force of combustion into the rotational motion that drives the machine. It forms a critical seal against the cylinder wall through its piston rings, maintaining the compression needed for efficient fuel ignition. When a piston wears, cracks, or fails, compression drops sharply — resulting in rough running, excessive exhaust smoke, oil burning, and ultimately engine failure if left unaddressed.
Part Details
| Part Number | 5100033793 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BL744ch Backhoe Loader | BL744ch | 5100031800 |
| BL744h Backhoe Loader | BL744h | 5100031801 |
| BL742h Backhoe Loader | BL742h | 5100031802 |
| BL744c Backhoe Loader | BL744c EX | 5100031803 |
| BL744 EX Backhoe Loader | BL744 EX | 5100031804 |
| Backhoe Loader | BL742 EX | 5100031805 |
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.
