The Wacker Neuson Washer Bolt (4X16) is a genuine OEM fastener designed for the P31A Power Unit for Wet Screed. Sourced directly from Wacker Neuson, this bolt integrates a captive washer face to deliver consistent clamping force and correct seating — exactly as originally installed. If you are maintaining or servicing a P31A-based wet screed setup, this is the correct OEM part to specify.
Key Features
- OEM-Grade Fastener Integrity — Manufactured to Wacker Neuson's exact thread pitch, shank diameter, and hardness spec, ensuring the bolt seats and torques correctly without stripping or backing out under vibration.
- Integrated Washer Design — The captive washer face distributes clamping load evenly across the mating surface, reducing the risk of surface damage or fastener loosening during operation.
- Drop-In Replacement — Matches the original 4x16 dimensions exactly, threading directly into existing mounting points on the P31A Power Unit without modification.
- Verified Fitment for the P31A Power Unit for Wet Screed — Confirmed OEM application for the P31A wet screed power unit, taking the guesswork out of parts sourcing.
- Vibration Resistance — Wet screed power units operate under sustained mechanical vibration; using the correct hardened OEM fastener helps prevent loosening and maintains structural integrity of the assembly over time.
A washer bolt combines a standard hex bolt with a pre-attached washer flange, serving as both the fastening element and the load-distribution surface in a single component. In a wet screed power unit like the P31A, fasteners are subjected to constant vibration and mechanical stress, making the correct specification critical — an undersized, over-torqued, or incorrect-grade fastener can work loose or fail, leading to misalignment or component damage. Using the correct OEM washer bolt ensures the joint remains secure and the assembly performs as designed throughout its service life.
Part Details
| Part Number | 5000157554 |
|---|---|
| Old Part Number | 0157554 |
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Washer Bolt (4X16) |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Power Unit for Wet Screed | P31A | 5000009365 |
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.
