The Bomag 05556209 AC Hose Assembly WN3111 is a genuine OEM component designed for Bomag BM 500/15 and BM 600/15 cold milling machines and a broad range of Bomag tandem rollers including the BW 141 AD-5, BW 151 AD-5, BW 154 AP-4, BW 154 AD-5, BW 161 AD-5, BW 174 AP-4, and BW 174 AP-5 series. Sourced directly from Bomag, this hose assembly matches the original routing, connection points, and pressure ratings of the factory-installed part. It is the correct replacement for operators maintaining the air conditioning system on any of the covered machines, ensuring the refrigerant circuit seals and flows exactly as intended.
Key Features
- Genuine OEM Construction — manufactured by Bomag to the same hose material, reinforcement, and end-fitting specifications as the original, sustaining rated refrigerant pressure without seepage or premature cracking
- Exact-Fit Replacement — hose length, routing profile, and WN3111-spec fittings align directly with the factory connection points on covered machines, so installation requires no cutting, splicing, or adapter work
- Broad Machine Coverage — fits BM 500/15 and BM 600/15 cold milling machines, plus tandem rollers spanning the BW 141, BW 151, BW 154, BW 161, and BW 174 series across multiple generation variants including AP-4, AP-4i, AP-4f, AP-4v, AP-5, AC-5, AD-5, and ADO-5 configurations
- Cabin Comfort Maintained — a correctly seated AC hose keeps the refrigerant circuit closed and pressurized, allowing the air conditioning system to hold cab temperature during long milling or rolling shifts in high-heat conditions
- Leak Prevention — a cracked or loose AC hose bleeds refrigerant, causing compressor cycling, warm cabin air, and eventual compressor damage; replacing with part number 05556209 restores a fully sealed circuit before secondary damage occurs
The AC hose assembly routes refrigerant between the major components of the machine's air conditioning circuit — typically connecting the compressor, condenser, and evaporator in the correct sequence to sustain the pressure differential that drives cooling. This hose carries refrigerant under both high- and low-side pressures, so its inner liner, reinforcement braid, and crimped end fittings must all remain intact to prevent leaks. When the hose degrades — through abrasion, heat cycling, or fitting corrosion — refrigerant escapes, cab cooling is lost, and the compressor runs unloaded or overheats. Replacing a failed hose with the correct OEM assembly restores the sealed circuit and protects the rest of the AC system from consequential wear.
Part Details
| Part Number | 05556209 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | AC Hose Assembly WN3111 |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Cold Milling Machine | BM 600/15 | 00818099, 00818175 |
| Cold Milling Machine | BM 500/15 | 00818173, 00818873, 00824553 |
| Tandem Roller | BW 154 AP-4 AM | 00818299, 00824177, 00824715 |
| Tandem Roller | BW 154 AP-4 | 00818301, 00824179, 00824717 |
| Tandem Roller | BW 154 ACP-4 AM | 00818303, 00824719 |
| Tandem Roller | BW 154 ACP-4 | 00818305, 00824721 |
| Tandem Roller | BW 174 AP-4 AM | 00818845, 00824543 |
| Tandem Roller | BW 174 AP-4 | 00818847, 00824545 |
| Tandem Roller | BW 174 AP-4 AM PB | 00818971 |
| Tandem Roller | BW 174 AP-4 PB | 00818973 |
| Tandem Roller | BW 141 AD-5 | 00824049, 00825593 |
| Tandem Roller | BW 151 AD-5 | 00824051, 00825595 |
| Tandem Roller | BW 154 AD-5 | 00824053, 00825597 |
| Tandem Roller | BW 151 AD-5 AM | 00824055 |
| Tandem Roller | BW 151 AC-5 | 00824057 |
| Tandem Roller | BW 174 AP-4i AM | 00824093, 00824627, 00825051 |
| Tandem Roller | BW 174 AP-4i | 00824095, 00824629, 00825053 |
| Tandem Roller | BW 161 AD-5 | 00824103, 00824647, 00824945 |
| Tandem Roller | BW 161 AC-5 | 00824109, 00824655 |
| Tandem Roller | BW 161 ADO-5 | 00824359, 00824657, 00824947 |
| Tandem Roller | BW 154 AP-4i AM | 00824385 |
| Cold Milling Machine | BM 500/15 EU-Flex | 00824539 |
| Tandem Roller | BW 154 AP-4i | 00824587 |
| Tandem Roller | BW 154 ACP-4i AM | 00824589, 00825383 |
| Cold Milling Machine | BM 500 15 P8 | 00824743 |
| Cold Milling Machine | BM600 /15 | 00824745 |
| Tandem Roller | BW 174 AP-4f AM | 00824909 |
| Tandem Roller | BW 174 AP-4f | 00824911 |
| Cold Milling Machine | BM 600/15 EU-Flex | 00824943 |
| Cold Milling Machine | BM 600/15 EU-Flex T4i | 00825065 |
| Tandem Roller | BW 174 APO-4i | 00825099 |
| Tandem Roller | BW 174 ACP 4I AM | 00825103 |
| Tandem Roller | BW161AD 5 | 00825627 |
| Tandem Roller | BW 174 AP-4v AM | 00825819 |
| Tandem Roller | BW 174 APO-4f | 00826149 |
| Tandem Roller | BW 174 AP-5 | 00826323 |
| Tandem Roller | BW 174 ACP-5 AM | 00826325 |
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.
