The Bomag 5551140 AC Hose Assembly WN3111 is a genuine OEM air conditioning hose assembly designed for the BW 75 ADL walk-behind light roller and the BM 2000/75, BM 2000/75 TE, BM 2200/75, and BM 2500/75 cold milling machines. As a direct OEM replacement, this assembly meets Bomag's original design specifications, ensuring a correct connection within the cab's air conditioning circuit. Sourced directly through Bomag's authorized parts network, this component delivers the same construction and routing geometry as the factory-installed unit, making it the trusted choice for operators who need a dependable, verified fix.
Key Features
- Genuine OEM Construction — Manufactured to Bomag's original hose routing, diameter, and pressure specifications, ensuring the AC circuit maintains proper refrigerant flow and system integrity.
- Exact Routing and Connection Match — Matches the factory hose geometry and end fittings, so this assembly installs directly without rerouting or adapting adjacent lines.
- Broad Confirmed Fitment — Verified for the BW 75 ADL walk-behind light roller and BM 2000/75, BM 2000/75 TE, BM 2200/75, and BM 2500/75 cold milling machines.
- Cab Comfort Restored — A failed or leaking AC hose causes refrigerant loss and complete cooling system failure; replacing it with part number 5551140 restores full operator cab climate control.
- Refrigerant System Safety — A correctly sealed, OEM-spec hose prevents refrigerant leaks that could pose environmental and operator safety concerns on enclosed cab machines.
The AC Hose Assembly WN3111 is a pressurized line within the machine's cab air conditioning system, responsible for carrying refrigerant between major AC components such as the compressor, condenser, and evaporator. When this hose degrades, cracks, or its fittings fail, refrigerant escapes, causing the AC system to lose cooling capacity entirely — a serious concern for operators working long shifts inside the enclosed cabs of cold milling machines. Replacing this assembly promptly with the correct OEM component restores system pressure, protects other AC components from running dry, and returns the cab environment to a safe and comfortable operating condition.
Part Details
| Part Number | 5551140 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | AC Hose Assembly WN3111 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Walk-Behind / Light Roller | BW 75 ADL | 00810017 |
| Cold Milling Machine | BM 2000/75 | 00824741 |
| Cold Milling Machine | BM 2200/75 | 00824801 |
| Cold Milling Machine | BM 2000/75 TE | 00825881 |
| Cold Milling Machine | BM 2500/75 | 00826375 |
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.
