The Wacker Neuson 5100043821 is a genuine OEM Hexagonal Head Cap Screw designed for the GP2500A, GP5600A, and GP3800A portable generators. As a direct OEM replacement, this fastener is sourced from Wacker Neuson's authorized parts supply, ensuring it meets the exact specifications called out in the original assembly. Proper fastener spec matters on generator frames and housings — an incorrect thread pitch, head size, or grade can compromise the integrity of the assembly. The 5100043821 eliminates that guesswork, giving technicians a confirmed, correct-fit solution across all three GP-series models.
Key Features
- OEM-Grade Fastener Specification — Manufactured to the exact thread form, head dimensions, and material grade specified by Wacker Neuson for generator assembly applications.
- Drop-In Installation — Matches the original fastener's hex head drive interface and thread engagement, so it seats and torques correctly without modification.
- Confirmed GP-Series Fitment — Verified for the GP2500A, GP5600A, and GP3800A portable generators, covering a range of output classes within the Wacker Neuson GP lineup.
- Structural Integrity at the Assembly Level — A correct-spec cap screw maintains proper clamping load on generator housings and mounting points; an underspec or worn fastener risks loosening under vibration during operation.
- Exact Part Number Reference — Part number 5100043821 is the Wacker Neuson OEM catalog reference, making it straightforward to verify against your machine's parts diagram before ordering.
A hexagonal head cap screw is a threaded fastener used to clamp or secure two or more components together within a machine assembly. On portable generators like the GP-series, these fasteners are used throughout the frame, housing panels, engine mounts, and ancillary component brackets to maintain structural rigidity during transport and operation. When a cap screw is damaged, corroded, or stripped, the clamped joint can work loose under the vibration loads a generator produces — potentially causing misalignment, component contact, or panel rattling that leads to further damage if left unaddressed.
Part Details
| Part Number | 5100043821 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Hexagonal Head Cap Screw |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| GP2500A | GP2500A | 5100041977 |
| GP5600A | GP5600A | 5100041979 |
| GP3800A | GP3800A | 5100041978 |
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.
