The Wacker Neuson Piston Pin is a genuine OEM component designed for the PG1 Dewatering Pump. As a factory-sourced part, it meets the exact dimensional and material specifications Wacker Neuson engineers to for this engine assembly. If you're restoring pump performance after internal wear, this is the correct replacement pin for the job. Confirm your model number against the PG1 series before ordering to ensure a straight swap.
Key Features
- OEM Dimensional Accuracy — Manufactured to the same bore diameter and surface finish tolerances as the original, ensuring correct wrist pin-to-piston clearance and smooth articulation under load.
- Direct Drop-In Replacement — Matches the original pin length, diameter, and retention groove geometry, so it seats into the connecting rod and piston bore without rework or fitting.
- Confirmed Fitment for PG1 Dewatering Pumps — Sourced and verified against the PG1 series parts catalog, so you're ordering with confidence rather than guessing on cross-references.
- Restores Full Power Transfer — A correctly sized piston pin transmits combustion force cleanly from the piston to the connecting rod; a worn or undersized pin causes slap, blow-by, and accelerating engine damage.
- Genuine Wacker Neuson Part — Supplied through the authorized Wacker Neuson parts network, carrying the same part number 5100031646 you'll find in the official service documentation.
The piston pin — also called a wrist pin — is the hardened cylindrical link that connects the piston to the small end of the connecting rod inside the engine. It allows the connecting rod to pivot as the piston moves up and down through the bore, transferring combustion energy into crankshaft rotation. When a piston pin wears, becomes loose in its bore, or develops surface damage, it causes a distinct knocking noise, loss of compression, and rapid deterioration of the surrounding piston and rod components — making timely replacement critical to avoiding a full engine rebuild.
Part Details
| Part Number | 5100031646 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Piston Pin |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Dewatering Pump | PG1 | 5100031509 |
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.
