Bomag 05544039 Test Connection

The Bomag 05544039 Test Connection is a genuine OEM diagnostic component designed for a wide range of Bomag refuse/landfill compactors, soil compactors, single drum rollers, tandem rollers, pneumatic tyred rollers, recycler/stabilizers, and cold milling machines. As a factory-sourced part, this test connection delivers the exact specification required for accurate hydraulic pressure testing and system diagnostics across the full range of compatible Bomag equipment. Compatible machines include BC-series refuse/landfill compactors such as the BC 601 RB, BC 672 RB, BC 772 RB, and BC 1172 RB-4, BC-series soil compactors including the BC 462 EB, BC 772 EB-4, and BC 473 EB-4, BW-series single drum rollers including the BW 213 D-5, BW 226 DH-5, and BW 145 D-5, BW-series tandem rollers including the BW 191 AD-5 and BW 206 AD-5, BW 28 RH pneumatic tyred rollers, MPH 125, MPH 600, and RS-series recycler/stabilizers, and the BM 500/15 cold milling machine. Ordering by part number 05544039 ensures you receive the correct OEM fitting for your specific Bomag machine.

Key Features

• OEM Hydraulic Test Port Specification — Sourced directly from Bomag, this test connection meets the exact thread form, port size, and pressure rating required for accurate diagnostic readings on Bomag hydraulic systems.
• Drop-In Compatibility — Engineered to connect directly to existing test ports without additional adapters, ensuring a secure, leak-free interface during pressure checks and system evaluations.
• Broad Bomag Fleet Coverage — Fits an extensive range of Bomag equipment including BC-series refuse/landfill compactors, BC-series soil compactors, BW single drum and tandem rollers, BW 28 RH pneumatic tyred rollers, MPH and RS recycler/stabilizers, and the BM 500/15 cold milling machine.
• Accurate Diagnostic Results — A correctly fitted test connection isolates hydraulic circuit pressure with no bypass or bleed-off, giving technicians confidence in readings and preventing misdiagnosis of hydraulic faults.
• Safe Pressure Testing — Using the correct OEM test connection prevents improvised fittings that can fail under hydraulic pressure, protecting both the technician and the machine's hydraulic components during live system testing.

A test connection is a diagnostic fitting that provides a controlled access point to a machine's hydraulic circuit, allowing technicians to measure system pressure, verify pump output, and check valve or actuator performance without disassembling major components. On heavy compaction and milling equipment, maintaining correct hydraulic pressure is critical to proper drum drive, steering, and compaction force — and an inaccurate reading caused by a damaged or incorrect fitting can lead to unnecessary component replacement or missed faults. When a test connection is worn, cross-threaded, or missing, it exposes the hydraulic system to contamination and makes reliable pressure measurement impossible, extending diagnosis time and increasing the risk of further system damage.

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.