The Bomag 05766872 Marginal Relay is a genuine OEM electrical component designed for Bomag BC-series refuse/landfill compactors and soil compactors. Sourced directly from Bomag, this relay delivers the correct switching characteristics and terminal configuration required by the machine's electrical system. Compatible fitment spans multiple generations of BC-series machines, including BC 572 RB-2, BC 672 RB, BC 672 RB-2, BC 672 RB-3, BC 672 RB-4, BC 672 EB-2, BC 772 RB, BC 772 RB-2, BC 772 RB-3, BC 772 RB-4, BC 772 RS, BC 772 RS-2, BC 772 RS-3, BC 772 RS-4, BC 772 EB-2, BC 772 EB-4, BC 972 RB, BC 972 RB-2, BC 972 RB-3, BC 1172 RB-2, and BC 1172 RB-3. Cross-referencing part number 05766872 against your machine's parts manual before ordering confirms an exact match.
Key Features
- Correct Switching Specification — as a genuine OEM relay, this component meets the exact coil voltage, contact rating, and switching threshold required by the BC-series electrical architecture
- Drop-In Terminal Compatibility — the relay mounts and connects to the existing relay socket without modification, preserving the integrity of the machine's wiring harness
- Broad BC-Series Coverage — fits refuse/landfill compactor variants including BC 572, BC 672, BC 772, BC 972, and BC 1172 RB/RS generations, as well as BC 772 and BC 672 soil compactors
- Electrical Circuit Integrity — a functioning marginal relay ensures controlled circuit switching across key machine systems; a failed relay can cause erratic operation, system lockout, or failure of dependent circuits to activate
- Electrical System Safety — correct relay specification prevents overcurrent conditions and ensures safety-critical switching circuits respond as designed during machine operation
A marginal relay is an electrically operated switch that opens or closes a circuit based on a signal from the machine's control system. In heavy compactors like the BC-series, relays manage power routing to various operational systems, ensuring circuits engage and disengage under the correct conditions. When a relay fails — whether through contact wear, coil burnout, or voltage degradation — the circuits it controls may stop responding, behave intermittently, or fail to shut off, causing operational faults that can be difficult to diagnose without replacing the suspect component.
Part Details
| Part Number | 05766872 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Marginal Relay |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Refuse / Landfill Compactor | BC 772 RB | 00817406 |
| Refuse / Landfill Compactor | BC 772 RS | 00817407 |
| Refuse / Landfill Compactor | BC 972 RB | 00817408 |
| Refuse / Landfill Compactor | BC 672 RB | 00817909 |
| Refuse / Landfill Compactor | BC 1172 RB-3 | 00818153 |
| Refuse / Landfill Compactor | BC 772 RB-2 | 00818179, 00818885, 00818933, 00824639 |
| Refuse / Landfill Compactor | BC 672 RB-2 | 00818181, 00818887, 00818931, 00824641 |
| Refuse / Landfill Compactor | BC 572 RB-2 | 00818183, 00818893, 00824257 |
| Refuse / Landfill Compactor | BC 772 RS-2 | 00818185, 00818895, 00824643 |
| Soil Compactor | BC 772 EB-2 | 00818187, 00818897 |
| Soil Compactor | BC 672 EB-2 | 00818189 |
| Refuse / Landfill Compactor | BC 972 RB-2 | 00818191, 00818701, 00818889 |
| Refuse / Landfill Compactor | BC 1172 RB-2 | 00818193, 00818703, 00818891 |
| Refuse / Landfill Compactor | BC 972 RB-3 | 00824085 |
| Refuse / Landfill Compactor | BC 772 RB-3 | 00824101 |
| Refuse / Landfill Compactor | BC 672 RB-3 | 00824259 |
| Refuse / Landfill Compactor | BC 772 RS-3 | 00824349 |
| Refuse / Landfill Compactor | BC 772 RB-4 | 00824355 |
| Refuse / Landfill Compactor | BC 772 RS-4 | 00824529 |
| Refuse / Landfill Compactor | BC 672 RB-4 | 00824531 |
| Soil Compactor | BC 772 EB-4 | 00824857 |
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.
