Bomag 05729539 Relay

The Bomag 05729539 Relay is a genuine OEM electrical relay designed for a broad range of Bomag cold milling machines, refuse and landfill compactors, soil compactors, and recycler/stabilizers. As a direct factory replacement, this relay matches the original electrical specifications required by each covered machine, ensuring a correct drop-in installation without adaptation. Compatible models include the BM 2000/60 and BM 2000/60-2 cold milling machines, the BC 772 RB-2, BC 672 RB-2, and BC 772 RS-2 refuse/landfill compactors, the BC 772 EB-2 and BC 672 EB-2 soil compactors, and the MPH 122-2, MPH 125, MPH 600, MPH 600 3B/4i-PB, MPH 600 EU-FLEX, and RS 650 recycler/stabilizers. When you need part number 05729539, ordering the genuine Bomag component confirms you are getting the exact relay specification your machine demands.

Key Features

• OEM Electrical Specification — manufactured to the exact coil voltage, contact rating, and switching capacity specified by Bomag for each covered machine, eliminating guesswork on electrical compatibility
• Direct-Fit Replacement — this relay seats into the original mounting position and connector with no wiring modifications, restoring the circuit exactly as designed
• Broad Cross-Platform Coverage — fits BM 2000/60 and BM 2000/60-2 cold milling machines, BC-series refuse/landfill compactors (BC 772 RB-2, BC 672 RB-2, BC 772 RS-2) and soil compactors (BC 772 EB-2, BC 672 EB-2), plus MPH 122-2, MPH 125, MPH 600, MPH 600 3B/4i-PB, MPH 600 EU-FLEX, and RS 650 recycler/stabilizers
• Circuit Protection and Control — a correctly functioning relay isolates high-current loads from sensitive control circuits, preventing damage to the machine's electrical system during switching events
• Electrical Safety Integrity — using the correct OEM relay maintains proper switching thresholds and contact ratings, reducing the risk of arcing, circuit faults, or unintended system behavior on these heavy-duty machines

A relay is an electrically operated switch that uses a low-current signal from the machine's control system to open or close a higher-current circuit powering components such as motors, solenoids, lighting, or auxiliary systems. On heavy equipment like cold milling machines and large compactors, relays are critical to keeping control electronics isolated from the high electrical loads of working systems. When a relay fails — whether through contact wear, coil burnout, or corrosion — the circuit it controls either stops functioning entirely or, in some cases, remains permanently energized, both of which can halt machine operation or create unsafe conditions. Replacing a worn relay with the correct OEM part restores proper circuit switching and protects the broader electrical 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.

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.