The Wacker Neuson O-Ring 114.00x2.50 is a genuine OEM sealing component designed for the AR 43/3 and AR 43/6 series machines, including the AR 43/3/230 V, AR 43/3/400, AR 43/6/042, and AR 43/6/250 models. As a direct Wacker Neuson OEM part, the is manufactured to the exact material grade and dimensional tolerances specified for these units, ensuring a proper compression seal every time. Keeping the correct O-ring in place is essential to maintaining system pressure and preventing fluid or air leakage that can compromise machine performance. Verify your model number before ordering to confirm fitment.
Key Features
- OEM-Grade Sealing Material — Produced to Wacker Neuson's specified elastomer compound, delivering the correct compression ratio and chemical resistance for this application.
- Exact Dimensional Fit — Sized at 114.00x2.50 mm to seat correctly in the designed groove without under- or over-compression that could cause leaks.
- Broad AR 43 Series Coverage — Compatible across the AR 43/3/230 V, AR 43/3/400, AR 43/6/042, and AR 43/6/250 models for straightforward sourcing across your fleet.
- Leak-Free System Integrity — A correctly seated O-ring maintains internal pressure and prevents contamination ingress, protecting downstream components from premature wear.
- Drop-In Installation — Matches the original profile and durometer so it seats into the existing groove without modification to surrounding hardware.
An O-ring is a precision loop of elastomer that forms a static or dynamic seal between two mating surfaces, preventing fluid or gas from escaping a pressurized system. In equipment like the AR 43 series, O-rings are used at critical junctions where consistent sealing pressure is required to keep the system operating at rated output. When an O-ring degrades, flattens, or cracks, it allows leaks that reduce pressure, invite contamination, and can lead to accelerated damage throughout the assembly — making timely replacement with the correct-spec part essential.
Part Details
| Part Number | 5100004139 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-Ring 114.00x2.50 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| AR 43/3/230 v | AR 43/3/230 v | 5100004246 |
| AR 43/3/400 | AR 43/3/400 | 5100004247 |
| AR 43/6/042 | AR 43/6/042 | 5100004248 |
| AR 43/6/250 | AR 43/6/250 | 5100004249 |
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.
