Bomag 05542285 Reducing Union

The Bomag 05542285 Reducing Union is a genuine OEM component designed for a broad range of Bomag pavers, rollers, recyclers/stabilizers, refuse/landfill compactors, cold milling machines, and trench compactors — including BF 600 and BF 800 series pavers, BW 213 and BW 226 single drum rollers, BW 174 and BW 154 tandem rollers, BM 1000/35 and BM 2000/75 cold milling machines, MPH 122 and RS 500 recyclers/stabilizers, and BC 972 RB refuse/landfill compactors. Sourced directly from Bomag, this reducing union matches the original OEM specification for a correct, dependable installation. This part is built to work across an extensive lineup of Bomag equipment, making it a go-to hydraulic fitting for fleet operators and service technicians managing multiple machine types.

Key Features

• Genuine OEM Hydraulic Integrity — manufactured to Bomag's original thread and pressure specifications, ensuring proper flow-path sizing and leak-free sealing in hydraulic and fluid circuits
• Direct-Fit Replacement — threads and port dimensions match the original fitting exactly, dropping into place on pavers, rollers, cold milling machines, recyclers/stabilizers, and trench compactors without modification
• Extensive Cross-Fleet Coverage — confirmed fitment across BF 300, BF 600, BF 700, BF 800, and BF 900 pavers; BW 100 through BW 226 tandem and single drum rollers; BM 500/15 through BM 2500/75 cold milling machines; MPH 121, MPH 122, MPH 125, MPH 600, RS 360, RS 460, RS 500, and RS 650 recyclers/stabilizers; BC 672 RB, BC 772 RB, BC 772 RS, BC 972 RB, and BC 1172 RB refuse/landfill compactors; and BW 850 TR and BW 85 T trench compactors
• Fluid System Performance — a correctly sized reducing union maintains the intended pressure differential and flow rate between two differently sized lines; a failed or wrong-size union causes pressure loss, fluid leaks, and system inefficiency that can cascade into pump or actuator damage
• OEM Part Number Confidence — ordering by Bomag part number 05542285 ensures you receive the exact fitting specified for your machine, eliminating guesswork when servicing complex multi-machine fleets

A reducing union is a threaded hydraulic or fluid-line fitting that connects two lines or ports of different diameters, stepping the bore size down in a single inline component. It maintains a sealed, continuous flow path between mismatched port sizes without the need for adapters or additional fittings. When a reducing union wears, corrodes, or is cross-threaded, the result is fluid leakage, pressure drop across the joint, and potential contamination of the hydraulic circuit — all of which degrade machine performance and can accelerate wear on downstream components such as pumps and control valves.

Part Details

Compatibility & Fitment

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.