The Bomag 05542225 Reducing Union is a genuine OEM component designed for Bomag BF 600 and BF 800 pavers, the BM 2000/60-2 cold milling machine, and the BW 120 AD tandem roller. As a direct OEM part sourced from Bomag, this reducing union delivers an exact match to the original specification, ensuring a correct connection in the hydraulic or fluid line where it was engineered to serve. Confirmed fitment covers the BF 600 C HSG, BF 600 C HSE, BF 600 P HSE, BF 600 C-E, BF 600 P-E, BF 600 C-G, BF 800 P S500, BM 2000/60-2, BF 600P HSE, BF 600C HSE, and BW 120 AD — giving fleet operators across paving, milling, and compaction equipment a single stocked part that spans multiple machines.
Key Features
- OEM Thread Integrity — manufactured to Bomag's original thread form and taper, so the union seals correctly at rated line pressure without improvised adapters or thread chasing
- Direct Drop-In Replacement — matches the original port sizing and fitting geometry for a straightforward swap with no reworking of existing line connections
- Broad Cross-Equipment Fitment — covers BF 600 and BF 800 P S500 pavers, the BM 2000/60-2 cold milling machine, and the BW 120 AD tandem roller under a single part number 05542225
- Leak-Free Flow Management — steps down between two different line diameters while maintaining a continuous, pressure-tight flow path; a worn or cross-threaded union risks fluid loss, pressure drop, and component damage downstream
- Genuine Bomag OEM Quality — produced to the same material and dimensional standards as the unit installed at the factory, supporting long service life in demanding paving and milling environments
A reducing union is a threaded fitting that joins two fluid lines of different diameters into a single, sealed flow path. It allows hydraulic or coolant circuits to transition between line sizes without a custom fabricated adapter, maintaining consistent pressure and flow through the system. When a reducing union fails — through thread wear, corrosion, or cracking — the result is fluid leakage, loss of pressure in the affected circuit, and potential damage to pumps, motors, or other downstream components that depend on a steady, contained flow.
Part Details
| Part Number | 05542225 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Reducing Union |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Paver | BF 600 C HSG | 00800637 |
| Paver | BF 600 C HSE | 00800639 |
| Paver | BF 600 P HSE | 00800645 |
| Paver | BF 600 C-E | 00800651 |
| Paver | BF 600 P-E | 00800653 |
| Paver | BF 600 C-G | 00800655 |
| Paver | BF 800 P S500 | 00800685, 00800687 |
| Cold Milling Machine | BM 2000/60-2 | 00800693, 00800695 |
| Paver | BF 600P HSE | 00800719, 00800727, 00824239 |
| Paver | BF 600C HSE | 00800731 |
| Tandem Roller | BW 120 AD | 00810019, 00810051, 00810146 |
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.
