The Bomag 05542302 Reducing Union is a genuine OEM component designed for a wide range of Bomag pavers, refuse and landfill compactors, soil compactors, tandem rollers, pneumatic tyred rollers, single drum rollers, and cold milling machines. Sourced directly from Bomag, this reducing union matches the original specification for a secure, leak-free connection wherever hydraulic or fluid lines step down in diameter. This part fits equipment including the BF 800 P S500 paver, BC-series refuse and landfill compactors such as the BC 601 RB, BC 671 RB, BC 772 RS-2, and BC 772 EB-2 soil compactor, BW tandem rollers including the BW 161 AD-4, BW 190 AD-4, BW 202 AD-4, and BW 203 AD-4, pneumatic tyred rollers including the BW 24 RH and BW 27 RH, the BW 177 DH-4 single drum roller, and cold milling machines including the BM 2000/75, BM 2200/75, BM 2500/75, and BM1300/30-T3. Using genuine OEM part number 05542302 ensures the union meets the original dimensional and pressure tolerances that Bomag engineered into these machines.
Key Features
- OEM-Matched Thread and Bore Dimensions — manufactured to Bomag's original specifications, ensuring the correct step-down bore diameter and thread form for a pressure-rated, leak-free seal
- Direct Drop-In Replacement — installs in the same port position as the original union with no reworking of fittings or fluid lines required
- Broad Cross-Equipment Compatibility — a single part number covering Bomag pavers, BC-series refuse and landfill compactors, BC-series soil compactors, BW tandem, pneumatic tyred, and single drum rollers, and BM cold milling machines
- Fluid System Integrity — a worn or damaged reducing union can cause fluid weeping, pressure drop, or line failure; replacing it with this genuine OEM union restores full system pressure and prevents contamination
- Fuel and Hydraulic System Safety — a correctly seated union prevents fluid leaks at pressure transitions, reducing fire and hydraulic-failure risk on high-cycle compaction and milling equipment
A reducing union is a threaded fitting that connects two fluid lines of different diameters, allowing hydraulic oil, fuel, or coolant to pass from a larger-bore line to a smaller-bore line without a pressure drop or leak point. On heavy compaction and milling equipment, these fittings operate under sustained pressure and vibration, making material integrity and thread accuracy critical. When a reducing union cracks, strips, or begins to weep fluid, the downstream circuit loses pressure, seals and hoses are exposed to contamination, and machine operation becomes unreliable until the fitting is replaced.
Part Details
| Part Number | 05542302 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Reducing Union |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Paver | BF 800 P S500 | 00800685, 00800687 |
| Refuse / Landfill Compactor | BC 601 RS | 00816000 |
| Refuse / Landfill Compactor | BC 670 RB | 00816001, 00816002, 00816003, 00816004 |
| Refuse / Landfill Compactor | BC 570 RB | 00816007 |
| Refuse / Landfill Compactor | BC 672 RB | 00816008, 00817909 |
| Refuse / Landfill Compactor | BC 601 RB | 00816009, 00816010, 00816011, 00816012, 00816013 |
| Refuse / Landfill Compactor | BC 771 RB | 00816025, 00817403 |
| Refuse / Landfill Compactor | BC 571 RB | 00816033, 00817400 |
| Refuse / Landfill Compactor | BC 671 RS | 00816304, 00817402 |
| Refuse / Landfill Compactor | BC 671 RB | 00817401 |
| Refuse / Landfill Compactor | BC 771 RS | 00817405 |
| Refuse / Landfill Compactor | BC 772 RB | 00817406 |
| Refuse / Landfill Compactor | BC 772 RS | 00817407 |
| Tandem Roller | BW 161 AD-4 | 00817641, 00818481, 00818959, 00824003 |
| Tandem Roller | BW 161 ADH-4 | 00817739 |
| Pneumatic Tyred Roller | BW 24 RH | 00817755, 00818457, 00818949, 00818951 |
| Single Drum Roller | BW 177 DH-4 | 00817765, 00818453, 00824133 |
| Tandem Roller | BW 190 AD-4 | 00817823, 00818379, 00818965, 00824009 |
| Refuse / Landfill Compactor | BC 772 RB-2 | 00818179 |
| Refuse / Landfill Compactor | BC 672 RB-2 | 00818181 |
| Refuse / Landfill Compactor | BC 572 RB-2 | 00818183, 00818893, 00824257 |
| Refuse / Landfill Compactor | BC 772 RS-2 | 00818185, 00818895 |
| Soil Compactor | BC 772 EB-2 | 00818187, 00818897 |
| Soil Compactor | BC 672 EB-2 | 00818189 |
| Pneumatic Tyred Roller | BW24RH | 00818279, 00818691 |
| Pneumatic Tyred Roller | BW 27 RH | 00818315, 00818953, 00818997 |
| Tandem Roller | BW 202 AD-4 | 00818381, 00818961, 00824005 |
| Cold Milling Machine | BM1300/30-T3 | 00818425 |
| Tandem Roller | BW 203 AD-4 | 00818599, 00818963 |
| Tandem Roller | BW 161 ADO-4 | 00824333, 00824335 |
| Tandem Roller | BW 161 AD-4 EU-Flex | 00824393 |
| Tandem Roller | BW 202 AD-4 EU-Flex | 00824395 |
| 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.
