The Bomag 05901493 Back-Up Ring is a genuine OEM component designed for BC 972 RB and BC 1172 RB series refuse and landfill compactors. Sourced directly from Bomag, this back-up ring delivers the exact material grade, dimensional tolerancing, and compression characteristics required by the hydraulic systems on these heavy-duty machines. It is engineered to fit BC 972 RB, BC 972 RB-2, BC 972 RB-3, BC 972 RB-4, BC 1172 RB, BC 1172 RB-2, BC 1172 RB-3, and BC 1172 RB-4 refuse and landfill compactors without alteration. Choosing a genuine OEM part number 05901493 ensures the seal assembly performs as Bomag intended, protecting hydraulic integrity across demanding landfill operating cycles.
Key Features
- Genuine OEM Seal Material — manufactured to Bomag's material and compression specifications for hydraulic back-up ring applications, ensuring correct extrusion resistance under operating pressure
- Direct-Fit Hydraulic Replacement — dimensionally identical to the original, seating correctly in the hydraulic assembly without rework or trimming
- Broad BC-Series Coverage — fits all generation variants of the BC 972 RB and BC 1172 RB refuse and landfill compactors, including RB-2, RB-3, and RB-4 builds
- Hydraulic System Protection — a correctly fitted back-up ring prevents seal extrusion and fluid bypass, maintaining cylinder pressure and directional control on the compactor's working attachments
- Verified Part Number Traceability — part number 05901493 cross-references directly within Bomag's OEM catalog, eliminating substitution risk when ordering for scheduled seal service
A back-up ring works alongside a primary hydraulic seal to prevent that seal from extruding into the clearance gap between moving components under high pressure. On heavy refuse and landfill compactors like the BC 972 RB and BC 1172 RB, hydraulic cylinders operate under significant and repeated load cycles, making the back-up ring a critical element in maintaining a leak-free, pressure-stable hydraulic circuit. When a back-up ring degrades or is omitted, the primary seal is exposed to extrusion damage, leading to hydraulic fluid loss, reduced actuator force, and accelerated seal failure that can take a machine out of service.
Part Details
| Part Number | 05901493 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Back-Up Ring |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Refuse / Landfill Compactor | BC 972 RB | 00817408 |
| Refuse / Landfill Compactor | BC 1172 RB | 00817827 |
| Refuse / Landfill Compactor | BC 1172 RB-3 | 00818153 |
| Refuse / Landfill Compactor | BC 972 RB-2 | 00818191, 00818701, 00818889 |
| Refuse / Landfill Compactor | BC 1172 RB-2 | 00818193, 00818703, 00818891 |
| Refuse / Landfill Compactor | BC 972 RB-3 | 00824085 |
| Refuse / Landfill Compactor | BC 972 RB-4 | 00824899 |
| Refuse / Landfill Compactor | BC 1172 RB-4 | 00824901 |
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.
