Bomag 05544012 Test Connection

The Bomag 05544012 Test Connection is a genuine OEM diagnostic component designed for an exceptionally broad range of Bomag equipment, including cold milling machines such as the BM 1000/35 and BM 2000/75, pavers including the BF 300 P, BF 600 P-3 S 500, and BF 800 C S600, tandem rollers such as the BW 120 AD-5 and BW 174 AP-5, single drum rollers including the BW 213 DH-5 and BW 226 DH-4, refuse and landfill compactors across the BC series, recyclers and stabilizers including the MPH 122 and RS 500, pneumatic tyred rollers, trench compactors, and soil compactors. As a genuine Bomag OEM part, the part is produced to the exact specification used during original machine assembly, ensuring accurate pressure readings and hydraulic circuit diagnostics every time. This test connection installs directly into the designated test port on compatible machines, providing technicians with a secure, leak-free connection point for pressure gauges and diagnostic equipment.

Key Features

• Genuine OEM Diagnostic Accuracy — manufactured to Bomag's exact specification, this test connection delivers the correct port interface for accurate hydraulic pressure readings without signal error or fluid contamination risk
• Direct-Fit Installation — engineered to match the original port thread and geometry on compatible Bomag machines, so this component seats and seals correctly without modification
• Exceptionally Broad Fitment — compatible with an extensive range of Bomag equipment including cold milling machines, pavers, tandem and single drum rollers, refuse and landfill compactors, recyclers and stabilizers, pneumatic tyred rollers, trench compactors, and soil compactors across multiple generations
• Leak-Free Hydraulic Interface — the correct connection integrity ensures no pressure bleed during testing, which is critical for obtaining valid diagnostic readings and protecting surrounding hydraulic components
• Critical for Accurate Servicing — using a correctly rated, OEM-spec test connection prevents false pressure readings that could lead to misdiagnosis of hydraulic faults, unnecessary component replacement, or unsafe machine operation

A test connection is a precision-threaded diagnostic port fitting that allows service technicians to attach pressure gauges or diagnostic instruments directly to a machine's hydraulic circuit. By providing a secure, calibrated access point, this component enables accurate measurement of hydraulic system pressure — a fundamental step in diagnosing pump performance, valve function, and circuit integrity. When a test connection is damaged, cross-threaded, or incompatible with the machine's port, readings become unreliable, making it difficult to isolate faults and potentially leading to incorrect repairs or overlooked safety-critical hydraulic failures.

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.