Bomag 05540009 Double-Ended Union

The Bomag 05540009 Double-Ended Union is a genuine OEM hydraulic fitting designed for an exceptionally wide range of Bomag equipment, including cold milling machines such as the BM 1000/35 and BM 2500/75, pavers including the BF 600 P-3 S 500 and BF 800 C-3 S 600, single drum rollers such as the BW 213 D-5 and BW 226 DH-5, tandem rollers including the BW 120 AD-5 and BW 202 AD-5, reversible vibratory plates such as the BPR 45/55 D and BPR 60/65 D, pneumatic tyred rollers, trench compactors, and recyclers/stabilizers. Sourced directly from Bomag, this fitting carries the same part number 05540009 as the original component, ensuring an exact match to factory specifications. This double-ended union installs directly into the hydraulic or fluid circuit without modification, restoring a secure, leak-free connection between mating lines or ports.

Key Features

• Genuine OEM Fluid-Line Integrity — Manufactured to Bomag's original sealing and thread specifications, this union maintains the rated pressure capacity of the hydraulic or fluid circuit it connects.
• Direct-Fit Replacement — Thread form, body dimensions, and port sizing match the original 05540009 exactly, so this union threads in and torques down without reworking adjacent fittings or lines.
• Broad Cross-Equipment Compatibility — Fits Bomag cold milling machines including the BM 1000/35 and BM 2500/75, pavers including the BF 700 C-3 S 500 and BF 800 C-3 S 600, single drum rollers including the BW 177 D-5 and BW 213 D-5, tandem rollers including the BW 100 AD-5 and BW 161 AD-5, reversible vibratory plates, pneumatic tyred rollers, trench compactors, and recyclers/stabilizers such as the MPH 600 and RS 650.
• Leak-Free Line Connection — A properly seated double-ended union keeps fluid routed correctly through the circuit; a worn or damaged union can cause pressure loss, fluid contamination, or system failure across any of the machines this part serves.
• Verified Part Number Traceability — Ordering by genuine OEM part number 05540009 eliminates the risk of receiving a mismatched fitting with incompatible thread pitch or body length.

A double-ended union is a straight-through hydraulic or fluid-line fitting that joins two threaded line ends in a single inline body, allowing a continuous sealed flow path between two hoses, pipes, or ports. It is commonly used where a line must be disconnected for service and then rejoined without disturbing surrounding hardware. When the union body cracks, its threads strip, or its sealing surfaces corrode, the connection leaks under pressure — leading to fluid loss, circuit pressure drop, and potential damage to pumps, motors, or downstream components. Replacing a failed union promptly with the correct OEM part restores a fully sealed circuit and protects the broader hydraulic system.

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.

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