The Bomag 05766410 Marginal Relay is a genuine OEM electrical relay designed for a wide range of Bomag tandem rollers, single drum rollers, and the BMP 851 trench compactor. Sourced directly from Bomag, this relay matches the exact electrical specification of the original component, ensuring correct circuit switching behavior across every compatible machine. This marginal relay fits the BW 184 AD, BW 100 ADM-2, BW 141 AD-2, BW 144 AD-2, BW 151 AC-2, BW 151 AD-2, BW 154 AD-2, BW 80 AD-2, BW 80 ADS, BW 90 AC-2, and BW 90 AD-2 tandem rollers, the BW 124 DH-3, BW 124 PDH-3, BW 145 D-3, BW 145 DH-3, BW 145 PDH-3, BW 124 DH-4, BW 124 PDH, BW 124 DH-40, BW 124 PDH-40, BW 145 DH 40, BW 145 PDH 40, BW 145 D 40, C 815 C, C 825 C, and C815D single drum rollers, as well as the BMP 851 trench compactor. Ordering by part number 05766410 confirms you are receiving the correct OEM component for your machine.
Key Features
- Exact OEM Electrical Specification — matched to the original relay's switching voltage and contact rating, preventing the erratic circuit behavior caused by an out-of-spec substitute
- Direct Drop-In Replacement — mounts and connects using the factory connector and mounting position, so installation is straightforward without rewiring
- Broad Fitment Across the BW and BMP Lines — compatible with Bomag BW-series tandem rollers, BW-series single drum rollers including the BW 184 AD and BW 124 DH-3 families, and the BMP 851 trench compactor
- Prevents Electrical System Faults — a failed marginal relay can cause unpredictable control circuit behavior, stalling critical machine functions; replacing it restores stable operation
- Genuine Bomag OEM Part — manufactured to Bomag's own design and quality standards, so the relay performs exactly as it did when the machine left the factory
A marginal relay is an electrical switching component that controls a secondary or auxiliary circuit within the machine's electrical system. It acts as a gatekeeper, opening or closing a circuit in response to a signal from the main control system, which protects sensitive components from excessive current loads and allows the control system to operate higher-demand circuits safely. When a marginal relay wears out or fails, the circuits it manages may behave erratically, fail to activate, or remain permanently open, disrupting machine functions that depend on that relay for their power supply or switching logic.
Part Details
| Part Number | 05766410 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Marginal Relay |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 184 AD | 00810713, 00810715 |
| Trench Compactor | BMP 851 | 00815200 |
| Tandem Roller | BW 100 ADM-2 | 00817459 |
| Single Drum Roller | BW 124 DH-3 | 00817464, 00817634 |
| Single Drum Roller | BW 124 PDH-3 | 00817465 |
| Tandem Roller | BW 141 AD-2 | 00817474 |
| Tandem Roller | BW 144 AD-2 | 00817477, 00817478 |
| Single Drum Roller | BW 145 D-3 | 00817479, 00817637 |
| Single Drum Roller | BW 145 DH-3 | 00817481, 00817638 |
| Single Drum Roller | BW 145 PDH-3 | 00817483, 00817639 |
| Tandem Roller | BW 151 AC-2 | 00817485 |
| Tandem Roller | BW 151 AD-2 | 00817486 |
| Tandem Roller | BW 154 AD-2 | 00817490, 00817491 |
| Tandem Roller | BW 80 AD-2 | 00817566 |
| Tandem Roller | BW 80 ADS | 00817567, 00818513 |
| Tandem Roller | BW 90 AC-2 | 00817568, 00818045 |
| Tandem Roller | BW 90 AD-2 | 00817569, 00818041, 00818507 |
| Tandem Roller | BW141AD 2 | 00817573 |
| Single Drum Roller | BW124PDH 3 | 00817574, 00818025 |
| Single Drum Roller | C 815 C | 00817575 |
| Single Drum Roller | BW145D 3 | 00817576, 00817927 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Single Drum Roller | BW 145-DH-3 | 00817929 |
| Single Drum Roller | BW 124 DH-4 | 00818295, 00824495, 00824709 |
| Single Drum Roller | BW 124 PDH | 00818297 |
| Single Drum Roller | BW124DH 4 | 00818311 |
| Single Drum Roller | BW145DH 40 | 00818323, 00818939, 00818941 |
| Single Drum Roller | BW 145 DH 40 BW 145 DH 4 | 00818325 |
| Single Drum Roller | BW 145 PDH 40 BW145 PDH 4 | 00818327 |
| Single Drum Roller | BW 124 DH-40 | 00818521, 00824499 |
| Single Drum Roller | BW 124 PDH-40 | 00818523, 00824497 |
| Single Drum Roller | C815D | 00818569 |
| Single Drum Roller | BW124PDH-40 | 00818571 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
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.
