The Wacker Neuson O-ring 45x5 is a genuine OEM sealing ring designed for the BH40, BH40rs, AS62e/25, AS68e/25, AS62ve/25, AS68ve/25, and Petrol Breaker series machines. Sourced directly from Wacker Neuson, this part matches the exact material compound and dimensional tolerances of the original component. It fits across multiple breaker and compactor series including Sunbelt-configured variants, making a versatile service item to keep on hand. Drop-in installation means no reworking of mating surfaces or housings.
Key Features
- OEM Seal Material and Sizing — Manufactured to the exact elastomer compound and 45x5 mm cross-section specified by Wacker Neuson, ensuring correct compression set and sealing pressure against mating bores.
- Direct-Fit Installation — Seats into the original groove geometry without modification, restoring the sealing interface exactly as engineered.
- Broad Model Coverage — Compatible with the BH40, BH40rs, AS62e/25, AS68e/25, AS62ve/25, AS68ve/25 (including Sunbelt variants), and the ND-40-II Petrol Breaker series.
- Leak Prevention — A correctly installed O-ring 45x5 maintains hydraulic or pneumatic pressure boundaries; a worn or hardened ring leads to fluid or air loss that degrades tool performance and accelerates internal wear.
- Genuine OEM Traceability — Part number 5100059938 is the authorized Wacker Neuson reference, so you can confirm the correct part before ordering and maintain accurate service records.
An O-ring is a circular elastomeric seal that sits in a machined groove between two mating surfaces or around a shaft, preventing the passage of fluids or gases under pressure. In breakers and compaction equipment, O-rings maintain the integrity of hydraulic circuits, air chambers, and lubricated housings — keeping working pressures stable and contaminants out. When an O-ring hardens, cracks, or is compressed beyond its recovery limit, the resulting leak can cause pressure loss, increased wear on surrounding components, and eventual machine shutdown if left unaddressed.
Part Details
| Part Number | 5100059938 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | O-ring 45x5 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| BH40 | BH40 27x80 | 5100047309 |
| BH40rs | BH40rs 27x80 o. bsz | 5100048665 |
| AS62e/25 | AS62e/25 | 5100061968 |
| AS68e/25 | AS68e/25 | 5100061972 |
| Petrol Breaker | ND-40-II(BH19) | 5100048663 |
| AS62e/25 Sunbelt | AS62ve/25 Sunbelt | 5100075650 |
| AS62e/25 Sunbelt | AS68ve/25 Sunbelt | 5100075651 |
| AS62ve/25 | AS62ve/25 | 5100081385 |
| AS68ve/25 | AS68ve/25 | 5100081386 |
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.
