Bomag 05814203 SAE Flange Half

The Bomag 05814203 SAE Flange Half is a genuine OEM hydraulic connection component designed for a wide range of Bomag single drum rollers, refuse and landfill compactors, cold milling machines, and recyclers/stabilizers. As an authentic Bomag part, it is manufactured to the same exacting tolerances as the original, ensuring a dependable hydraulic seal and correct SAE flange geometry every time. This component fits machines including the BW 142 D-2 single drum roller, BC 601 RB, BC 671 RB, BC 772 RB-2, and other BC-series refuse/landfill compactors, BM 1000/35, BM 1200/35, and BM 1300/35 cold milling machines, and MPH 122-2, MPH 125, MPH 600, RS 460, RS 500, RS 650, BS 12000, BS 12000 Profi, BS 16000 Profi, and related recycler/stabilizer models. When a hydraulic flange half wears, corrodes, or is damaged, it must be replaced promptly to prevent fluid leaks and maintain full system pressure across the machine's hydraulic circuit.

Key Features

• Genuine OEM Hydraulic Integrity — machined to Bomag's original SAE flange dimensions, ensuring full-face seating and leak-free hydraulic connections under operating pressure
• Direct Bolt-On Replacement — matches the original mounting pattern and SAE port sizing for a straightforward swap with no rework of adjacent fittings or lines
• Broad Machine Coverage — fits the BW 142 D-2 single drum roller, BC-series refuse/landfill compactors including the BC 570 RB, BC 601 RB, BC 601 RS, BC 670 RB, BC 671 RB, BC 672 RB, BC 771 RB, BC 771 RB, BC 772 RB-2, BC 473 RS-4, and BC 571 RB, BM-series cold milling machines, and MPH/RS/BS recyclers and stabilizers
• Hydraulic System Pressure Maintained — a correctly seated SAE flange half prevents pressure drop and fluid loss that can cause erratic hydraulic response or component damage in high-demand equipment
• Corrosion-Resistant Construction — built from materials that withstand the hydraulic fluid exposure and environmental conditions typical of heavy compaction and milling applications

An SAE flange half is one of two mating halves that clamp together around an O-ring to form a secure, leak-resistant hydraulic connection at high-pressure ports on pumps, motors, valves, and hydraulic lines. Unlike threaded fittings, the SAE four-bolt flange design distributes clamping force evenly across the port face, making it the standard choice for high-flow, high-pressure hydraulic circuits found in heavy equipment. When this component is cracked, corroded, or out of flat, the O-ring cannot seal correctly, resulting in hydraulic fluid leaks, reduced system efficiency, and potential damage to downstream components — making timely replacement with a correct OEM part essential to keeping the machine's hydraulic system fully operational.

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.