The Bomag 05556521 AC Hose Assembly WN3111 is a genuine OEM air conditioning hose assembly designed for BC 972 RB-3 and BC 1172 RB-3/RB-4 refuse and landfill compactors. Sourced directly from Bomag, this component matches the original routing, end fittings, and pressure ratings of the factory-installed hose. It fits the BC 972 RB-3, BC 1172 RB-3, and BC 1172 RB-4 — ensuring a correct, leak-free connection within the cab climate system without adaptation.
Key Features
- Genuine OEM Construction — built to the same hose material grade, wall thickness, and end-fitting specification as the original Bomag assembly, ensuring rated pressure capacity and refrigerant compatibility
- Exact Routing and Connector Match — hose length, bend geometry, and port fittings correspond directly to the OEM layout on these compactors, dropping into place without cutting or re-routing
- Confirmed Fitment — verified for BC 972 RB-3, BC 1172 RB-3, and BC 1172 RB-4 refuse and landfill compactors
- Leak-Free Climate System Performance — a sound AC hose maintains correct refrigerant pressure throughout the system; a cracked or degraded hose causes refrigerant loss, compressor strain, and loss of cab cooling
- Refrigerant System Integrity — using a correctly rated OEM hose supports safe containment of refrigerant and helps maintain compliance with climate-system service standards on heavy equipment
The AC Hose Assembly WN3111 is a pressurized refrigerant line that carries conditioned refrigerant between components of the air conditioning system — typically connecting the compressor, condenser, or evaporator within the cab cooling circuit. It maintains the sealed, pressurized environment the AC system depends on to transfer heat and deliver cool air to the operator cab. When this hose degrades, cracks, or its fittings fail, refrigerant escapes, system pressure drops, and the AC compressor can run unloaded or sustain damage — leaving operators without climate control during demanding compaction work.
Part Details
| Part Number | 05556521 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | AC Hose Assembly WN3111 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Refuse / Landfill Compactor | BC 1172 RB-3 | 00818153 |
| Refuse / Landfill Compactor | BC 972 RB-3 | 00824085 |
| 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.
