The Bomag 05542306 Reducing Union is a genuine OEM component designed for a wide range of Bomag single drum rollers, tandem rollers, pneumatic tyred rollers, and cold milling machines, including the BW 213 D-3, BW 177 D-3, BW 225 D-3, BW 24 RH, and BM 2000/60-2. Sourced directly from Bomag, this reducing union matches the original specification for a direct, confidence-inspiring installation. Confirmed fitment spans models including BW 212 D-3, BW 216 D-3, BW 219 DH-3, BW 141 AD-2, BW 154 AD-2, BW 151 AC-2, BW 27 RH, BW 25 RH, and many additional variants across the BW and C 850 C families.
Key Features
- Genuine OEM Fluid-Line Integrity — manufactured to Bomag's original specification, ensuring the correct bore reduction and thread form for a leak-free hydraulic or fluid connection
- Drop-In Installation — this reducing union threads directly into the existing ports with the correct sizing, eliminating guesswork during service or repair
- Broad Fitment Coverage — fits BW-series single drum rollers including BW 177, BW 212, BW 213, BW 214, BW 216, BW 219, and BW 225 variants, tandem rollers including BW 141 AD-2 and BW 154 AD-2, pneumatic tyred rollers including BW 24 RH, BW 25 RH, BW 27 RH, and BW 27 RH-4i, plus the BM 2000/60-2 cold milling machine
- Sustained Seal Under Pressure — a correctly fitted reducing union maintains proper line pressure and flow rate; a failed or mismatched union can cause fluid leaks, pressure loss, and system contamination
- Verified Part Number Fit — order by Bomag part number 05542306 for confidence that you are receiving the exact union specified in the OEM service documentation
A reducing union is a threaded fitting that connects two fluid lines or ports of different diameters within a machine's hydraulic or cooling circuit. It steps down from a larger bore to a smaller one, maintaining sealed, pressurized flow between components that would otherwise be incompatible in size. When a reducing union fails — through thread wear, corrosion, or cracking — the result is fluid leakage, pressure drop, and potential damage to downstream components. Replacing it with the correct OEM union restores a tight, rated connection and keeps the fluid system operating as designed.
Part Details
| Part Number | 05542306 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Reducing Union |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Cold Milling Machine | BM 2000/60-2 | 00800693, 00800695 |
| Single Drum Roller | BW 177 D-3 | 00815310, 00817503 |
| Single Drum Roller | BW 213 D-3 | 00815320, 00815329, 00815390, 00817522, 00817523, 00817588 |
| Single Drum Roller | BW 213 DH-3 | 00815322, 00817526, 00817527, 00817528, 00817589 |
| Single Drum Roller | BW 212 D-3 | 00815325, 00815326 |
| Single Drum Roller | BW 178 D-3 | 00815515 |
| Single Drum Roller | BW 216 D-3 | 00817214, 00817535 |
| Tandem Roller | BW 141 AD-2 | 00817474 |
| Tandem Roller | BW 144 AD-2 | 00817477, 00817478 |
| Tandem Roller | BW 151 AC-2 | 00817485 |
| Tandem Roller | BW 151 AD-2 | 00817486 |
| Tandem Roller | BW 154 AD-2 | 00817490, 00817491, 00817599 |
| 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 |
| Single Drum Roller | BW212D 3 | 00817521 |
| Single Drum Roller | BW 213 PDH-3 | 00817529, 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 |
| Tandem Roller | BW141AD 2 | 00817573 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | C 850 C | 00817583 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Single Drum Roller | BW 213 DH 3 VARIOCONTOL | 00817591, 00817605 |
| Single Drum Roller | BW 216 DHC-3 | 00817643, 00817644 |
| Single Drum Roller | BW 213 DH-3 USA | 00817671 |
| Single Drum Roller | BW 213 PDH-3 USA | 00817673 |
| Single Drum Roller | BW 177 D-3 USA | 00817675 |
| Single Drum Roller | BW 177 DH-3 USA | 00817677 |
| Single Drum Roller | BW 177 PDH-3 USA | 00817679 |
| Pneumatic Tyred Roller | BW 24 RH | 00817755, 00818457, 00818949, 00818951, 00824405 |
| Pneumatic Tyred Roller | BW 27 RH | 00817757, 00818315, 00818953, 00818997, 00824407 |
| Single Drum Roller | BW177D 3 | 00817863 |
| Single Drum Roller | BW177DH 3 | 00817865 |
| Pneumatic Tyred Roller | BW24RH | 00818279, 00818691 |
| Single Drum Roller | BW177PDH 5 | 00818281 |
| Pneumatic Tyred Roller | BW 25 RH | 00818321 |
| Pneumatic Tyred Roller | BW 27 RH-4i | 00824131, 00824409 |
| Pneumatic Tyred Roller | BW 27 RH-4i BC | 00824723 |
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.
