The Bomag 05579035 Expansion Valve is a genuine OEM component designed for a broad range of Bomag single drum rollers, tandem rollers, refuse/landfill compactors, and recycler/stabilizers — including the BW 213 D-3, BW 225 D-3, BW 177 DH-3, BW 145 PDH-3, BW 184 AD, BW 180 AD, BC 672 RB, BC 771 RB, BC 671 RS, and MPH 122, among others. Sourced directly from Bomag, this expansion valve matches the original part in every dimension and specification, ensuring a seamless installation in the cab air conditioning system. Confirming part number 05579035 against your machine's serial number and model before ordering is always recommended for a confident match.
Key Features
- Genuine OEM Refrigerant Metering — manufactured by Bomag to the exact flow-rate and orifice specification of the original, maintaining correct refrigerant delivery across the A/C evaporator
- Drop-In Replacement — matches the original valve's thread pitch, port sizing, and thermal bulb configuration so it installs directly into the existing A/C lines without modification
- Wide Bomag Fleet Coverage — compatible with BW-series single drum rollers (including BW 145, BW 177, BW 212, BW 213, BW 214, BW 216, BW 219, and BW 225 variants), BW 184 AD and BW 180 AD tandem rollers, BC 672 RB, BC 771 RB, and BC 671 RS refuse/landfill compactors, the C 825 C single drum roller, and the MPH 122 recycler/stabilizer
- Restored Cab Cooling Capacity — a failed or stuck expansion valve causes the A/C system to blow warm or freeze up the evaporator coil; this replacement restores proper superheat control and full cooling output for operator comfort in demanding site conditions
- System Protection — correct refrigerant metering prevents compressor overload and evaporator icing, protecting the broader A/C system from secondary damage caused by a malfunctioning valve
The expansion valve is a precision metering device located between the A/C system's high-pressure and low-pressure sides. Its job is to regulate the flow of refrigerant into the evaporator coil — throttling it down so the refrigerant can expand, absorb heat, and cool the cab interior. When the valve sticks open, refrigerant floods the evaporator and the system loses cooling efficiency or causes compressor slugging; when it sticks closed, refrigerant is starved and the A/C blows warm air entirely. Replacing a faulty expansion valve with a correctly specified OEM unit is essential to restoring reliable cab climate control on machines that operate in high-heat environments.
Part Details
| Part Number | 05579035 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Expansion Valve |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 184 AD | 00810713, 00810715, 00817514 |
| Single Drum Roller | BW 177 D-3 | 00815310, 00817503 |
| Single Drum Roller | BW 213 D-3 | 00815320, 00815390, 00817523, 00817588 |
| Single Drum Roller | BW 213 DH-3 | 00815322, 00817526, 00817527, 00817528, 00817589 |
| Single Drum Roller | BW 212 D-3 | 00815326 |
| Single Drum Roller | BW 216 D-3 | 00815340, 00817214, 00817535 |
| Single Drum Roller | BW 178 D-3 | 00815515 |
| Refuse / Landfill Compactor | BC 672 RB | 00816008 |
| Refuse / Landfill Compactor | BC 771 RB | 00816025 |
| Refuse / Landfill Compactor | BC 671 RS | 00816304 |
| Single Drum Roller | BW 145 D-3 | 00817479 |
| Single Drum Roller | BW 145 DH-3 | 00817481 |
| Single Drum Roller | BW 145 PDH-3 | 00817483 |
| Single Drum Roller | BW 177 DH-3 | 00817505, 00817751 |
| Single Drum Roller | BW 177 DH 3 | 00817506 |
| Single Drum Roller | BW 177 PDH-3 | 00817508 |
| Tandem Roller | BW 180 AD | 00817513 |
| Single Drum Roller | BW211D 3 | 00817520, 00817581, 00817649 |
| Single Drum Roller | BW212D 3 | 00817521 |
| Single Drum Roller | BW 213 PDH-3 | 00817530, 00817590 |
| Single Drum Roller | BW 214 DH-3 | 00817532, 00817592 |
| Single Drum Roller | BW 216 DH-3 | 00817537 |
| Single Drum Roller | BW 219 DH-3 | 00817540 |
| Single Drum Roller | BW 219 PDH-3 | 00817544 |
| Single Drum Roller | BW 225 D-3 | 00817546, 00817548 |
| Single Drum Roller | BW 225 | 00817549 |
| Single Drum Roller | BW145D 3 | 00817576 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Single Drum Roller | BW 213 DH 3 VARIOCONTOL | 00817591, 00817605 |
| Recycler / Stabilizer | MPH 122 | 00817595 |
| Single Drum Roller | BW 216 DHC-3 | 00817643, 00817644 |
| Single Drum Roller | BW 212 D-30 | 00817907 |
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.
