The Bomag 05570777 Seat Switch is a genuine OEM component designed for BC-series refuse/landfill compactors and soil compactors, including the BC 671 RB, BC 772 RB, BC 772 RS, BC 772 RB-2, BC 772 RS-2, BC 1172 RB, and BC 772 EB-2. Sourced directly from Bomag, this seat switch carries the exact fit, electrical specifications, and connector configuration required by the original machine design. Whether you're servicing a high-cycle landfill compactor or a BC 772 EB-2 soil compactor, this switch reinstalls to OEM spec with no guesswork on compatibility.
Key Features
- OEM Electrical Accuracy — meets the original switching threshold and circuit specifications, ensuring the operator presence signal behaves exactly as Bomag designed it
- Direct Plug-In Replacement — matches the factory connector, mounting bracket, and contact configuration for a clean installation into the operator seat assembly
- Broad BC-Series Coverage — fits BC 671 RB, BC 772 RB, BC 772 RS, BC 772 RB-2, BC 772 RS-2, and BC 1172 RB refuse/landfill compactors, as well as the BC 772 EB-2 soil compactor
- Operator Presence Integrity — a correctly functioning seat switch keeps safety-critical interlocks active; a failed switch can disable the machine unexpectedly or, worse, allow operation without a seated operator
- Safety-Critical Component — as part of the operator detection circuit, this switch directly governs machine enable/disable logic; using a correctly specified OEM part is essential for safe, compliant operation on regulated landfill and construction sites
The seat switch is an operator presence sensor mounted beneath the operator's seat. When the operator sits down, the switch closes an electrical circuit that signals the machine's control system that the seat is occupied — enabling normal operation of drive and compaction functions. If the switch fails or produces an intermittent signal, the machine may shut down unexpectedly mid-cycle, throw a fault code, or in cases of switch failure in the closed position, allow functions to remain active without an operator present. Keeping this switch in good working condition is a fundamental part of maintaining both uptime and site safety on BC-series compactors.
Part Details
| Part Number | 05570777 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Seat Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Refuse / Landfill Compactor | BC 671 RB | 00817401 |
| Refuse / Landfill Compactor | BC 772 RB | 00817406 |
| Refuse / Landfill Compactor | BC 772 RS | 00817407 |
| Refuse / Landfill Compactor | BC 1172 RB | 00817827 |
| Refuse / Landfill Compactor | BC 772 RB-2 | 00818179 |
| Refuse / Landfill Compactor | BC 772 RS-2 | 00818185 |
| Soil Compactor | BC 772 EB-2 | 00818187 |
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.
