The Wacker Neuson is a genuine OEM Piston Pin designed for a broad range of Wacker Neuson equipment, including the CT36BDT and CT36BDT-E 915mm/36in walk-behind concrete trowels, the PT2B 50mm/2in centrifugal trash pump, the PD3B 75mm/3in diaphragm pump, the PDT2B 50mm/2in diaphragm trash pump, and the B 3000 and B 5000 gasoline power units used with internal concrete vibrators. As a genuine OEM component, part number is manufactured to the exact tolerances required for proper engine assembly and reliable operation across all compatible machines. Sourcing the correct piston pin matters — this is a precision-fit internal engine component where dimensional accuracy directly affects engine performance and service life.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to exact bore and pin diameter tolerances, ensuring correct wrist-pin-to-piston and pin-to-connecting-rod clearances without hand-fitting or modification.
- Direct-Fit Internal Engine Component — Engineered to drop into the existing piston and connecting rod assembly, maintaining correct alignment within the cylinder bore on all covered machines.
- Wide Cross-Family Fitment — A single part number covers the CT36BDT and CT36BDT-E walk-behind trowels, PT2B and PDT2B pumps, PD3B diaphragm pump, and B 3000/B 5000 gasoline power units, simplifying parts inventory across your fleet.
- Protects Engine Integrity — A correctly sized piston pin transfers combustion loads cleanly from the piston to the connecting rod; a worn or undersized pin introduces lateral play that accelerates piston, bore, and bearing wear.
- Sourced Direct from Wacker Neuson — Supplied as a genuine OEM part, so material grade, surface finish, and hardness match the original specification used at the time of manufacture.
The piston pin — also called a wrist pin — is the cylindrical link that connects the piston to the small end of the connecting rod inside a gasoline engine. As the engine fires, it transmits the downward force of combustion from the piston into the rotational motion of the crankshaft via the connecting rod. Because it operates under high cyclic load and heat, the pin must maintain very tight dimensional tolerances; even minor wear causes a loose fit that creates a characteristic knocking noise and allows the piston to rock slightly in the bore, leading to scoring of the cylinder wall, increased oil consumption, and eventual engine failure if left unaddressed.
Part Details
| Part Number | 5000020477 |
|---|---|
| Old Part Number | 0020477 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Pin |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| 915mm/36in Walk-behind Trowel | CT36BDT | 5000008009 |
| 50mm/2in Centrifugal Trash Pum p | PT2B | 5000006722 |
| Gasoline Power Unit for Intern al Vibrator | B 3000 | 5000005829 |
| Gasoline Power Unit for Intern al Vibrator | B 5000 | 5000007522, 5000006307 |
| 915mm/36in Walk-behind Trowel | CT36BDT-E | 5000008010 |
| 75mm/3in Diaphragm Pump | PD3B | 5000006802 |
| 50mm/2in Diaphragm Trash Pump | PDT2B | 5000007612, 5000007613 |
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.
