The Wacker Neuson is a genuine OEM Hexagonal Head Cap Screw designed for a broad range of Wacker Neuson gasoline and diesel power units for internal vibrators, as well as PDT and PDI diaphragm pump models. Sourced directly through the Wacker Neuson OEM parts program, this fastener is manufactured to the exact material grade, thread specification, and head geometry called out in the original equipment build. Correct fastener spec matters — an improperly rated cap screw can back out under vibration or fail to hold the required clamping load, leading to assembly loosening on machines that operate under continuous high-frequency stress. With part number, you get the exact replacement the machine was designed around.
Key Features
- Correct Thread and Grade Specification — Manufactured to the precise thread pitch, shank diameter, and tensile grade specified for these assemblies, ensuring proper clamping torque is achieved and maintained.
- Vibration-Resistant Fastener Integrity — Engineered to maintain clamping load in high-frequency vibration environments typical of internal concrete vibrators and diaphragm pumps — where undertorqued or mismatched fasteners are a common failure point.
- Genuine OEM Part — Supplied as an authentic Wacker Neuson OEM component, meaning it matches the original fastener in every measurable dimension and material property — no guesswork on fitment or substitution risk.
- Wide Fitment Coverage — Compatible with A3000, B3000, B5000, X3000, and D4000 gasoline and diesel power units for internal vibrators, plus PDT2A, PDT2, PDI2A(I), PDT3A, PDT3, PDI3A, and PDI3A(I) diaphragm pump models.
- Drop-In Service Replacement — Installs directly in place of the original fastener with no modification — critical when replacing hardware during field service or scheduled maintenance where time on the machine is limited.
A hexagonal head cap screw is a standard threaded fastener used to clamp and secure components within a machine assembly. In vibrating equipment such as internal concrete vibrators and diaphragm pumps, fasteners are subjected to constant oscillation forces that can progressively loosen hardware not rated or torqued to specification. When a cap screw wears, stretches, or is replaced with an incorrect substitute, the joint it secures can shift or separate — potentially damaging housings, misaligning components, or creating a safety hazard. Using the correct OEM-specified fastener like the Wacker Neuson 5000025566 ensures the assembly remains properly clamped through the full service life of the machine.
Part Details
| Part Number | 5000025566 |
|---|---|
| Old Part Number | 0025566 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagonal Head Cap Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Gasoline Power Unit for Intern al Vibrator | A3000 | 5000006237 |
| Gasoline Power Unit for Intern al Vibrator | B 3000 | 5000005829 |
| Gasoline Power Unit for Intern al Vibrator | B 5000 | 5000007522, 5000006307 |
| Power Unit for Internal Vibrat ors | X 3000 | 5000006251 |
| Diesel Power Unit for Internal Vibrator | D4000 | 5000009091 |
| PDT2A | PDT2A | 5000620769 |
| PDT2 Pump, Diaphragm | PDT2 | 5000620770 |
| PDI2A(I) | PDI2A(I) | 5000620772 |
| PDT3A | PDT3A | 5000620773 |
| PDT3 | PDT3 | 5000620774 |
| PDI3A | PDI3A | 5000620775 |
| PDI3A(I) | PDI3A(I) | 5000620776 |
| Gasoline Power Unit for Intern al Vibrator | A5000 | 5000009213 |
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.
