The Bomag 05570746 Seat Switch is a genuine OEM component designed for Bomag BW-series tandem rollers and single drum rollers, including the BW 80 AD-2, BW 100 AD-5, BW 120 AD-5, BW 138 AD-5, and BW 211 D-5 SL, among many others across the BW compaction lineup. Sourced directly from Bomag, this seat switch meets original equipment specifications for a direct, reliable replacement. It installs into the operator seat assembly and integrates with the machine's safety interlock system without the need for wiring modification. Confirmed fitment spans both -4 and -5 generation tandem rollers as well as select BW 124 single drum models.
Key Features
- Genuine OEM Electrical Specification — manufactured to Bomag's original switching output and circuit resistance specs, ensuring correct interlock logic for your machine's control system
- Direct Drop-In Replacement — matches the original connector, mounting footprint, and actuation travel of the factory seat switch for a clean installation
- Broad BW-Series Coverage — fits a wide range of Bomag tandem rollers from the BW 80 AD-2 through BW 138 AC-5 and BW 138 AD-5, plus BW 124 PDH-5, BW 124 DH-5, BW 211 D-5 SL, and BW 213 D-5 SL single drum rollers
- Operator Presence Detection — a functioning seat switch is what allows the machine to start and remain in operation; a failed switch can prevent the roller from running or cause unintended shutdowns mid-pass
- Safety Interlock Integrity — the seat switch is a core element of the operator presence system; using the correct OEM part maintains the interlock circuit as Bomag engineered it, preventing bypass conditions that could create unsafe operating situations
The seat switch is an operator presence sensor mounted beneath or within the operator seat. When the operator sits down, the switch closes, signaling to the machine's control system that an operator is in position — a required condition for the drivetrain and vibration systems to engage. Replacing a faulty seat switch with a correct OEM unit restores normal interlock function and keeps the machine operating safely as designed.
Part Details
| Part Number | 05570746 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Seat Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 80 AD-2 | 00817566 |
| Tandem Roller | BW 80 ADS | 00817567, 00818513 |
| Tandem Roller | BW 90 AC-2 | 00817568 |
| Tandem Roller | BW 90 AD-2 | 00817569, 00818041, 00818507 |
| Tandem Roller | BW 100 AD-4 | 00817685, 00818465, 00824271, 00824273 |
| Tandem Roller | BW 100 AC-4 | 00817687, 00818467, 00818731 |
| Tandem Roller | BW 120 AD-4 | 00817689, 00818469, 00818477, 00818593, 00818733, 00824173 |
| Tandem Roller | BW 120 AC-4 | 00817691, 00818471, 00818597 |
| Tandem Roller | BW 135 AD | 00818357 |
| Tandem Roller | BW 138 AD | 00818359 |
| Tandem Roller | BW 138 AC | 00818361 |
| Tandem Roller | BW 138-AD | 00818389 |
| Tandem Roller | BW 125 AD-4 | 00818473 |
| Tandem Roller | BW 125 AC-4 | 00818475 |
| Tandem Roller | BW 100 SCC-5 | 00818505, 00824127, 00825295 |
| Tandem Roller | BW120AD 4 | 00818595, 00818871 |
| Tandem Roller | BW 80 AD-5 | 00818707, 00824117, 00825283 |
| Tandem Roller | BW 90 AD-5 | 00818709, 00824119, 00825285 |
| Tandem Roller | BW 100 ADM-5 | 00818711, 00824121, 00825289 |
| Tandem Roller | BW 90 SC-5 | 00818713, 00824125 |
| Tandem Roller | BW 100 SC-5 | 00818715, 00824129 |
| Tandem Roller | BW 100 ACM-5 | 00818717, 00824123, 00825291 |
| Tandem Roller | BW 138 AC-5 | 00818719, 00824923, 00824929, 00825561 |
| Tandem Roller | BW 138 AD-5 | 00818721, 00824175, 00824921, 00824927, 00825351, 00825559 |
| Tandem Roller | BW 135 AD-5 | 00818723, 00824931, 00825355, 00825563 |
| Tandem Roller | BW 100 AD-5 | 00824029, 00824561, 00824617, 00824833, 00824995, 00825357, 00825373, 00825565, 00825643, 00826215, 00826219, 00826813, 00827043 |
| Tandem Roller | BW 120 AC-5 | 00824031, 00824619, 00824839, 00825363, 00825571, 00826093, 00827049 |
| Tandem Roller | BW 120 AD-5 | 00824033, 00824563, 00824615, 00824835, 00824997, 00825359, 00825567, 00825645, 00826049, 00826217, 00826221, 00826639, 00826689, 00827045 |
| Tandem Roller | BW 100 AC-5 | 00824275, 00824621, 00824837, 00825361, 00825569, 00826091, 00827047 |
| Tandem Roller | BW 120 SL-5 | 00824537, 00824559, 00825001, 00825615, 00826779, 00827055 |
| Tandem Roller | BW 100 SL-5 | 00824557, 00824999, 00826553 |
| Single Drum Roller | BW 124 PDH-5 | 00825071, 00825075, 00825625, 00825735 |
| Single Drum Roller | BW 124 DH-5 | 00825073, 00825193, 00825623, 00825733 |
| Tandem Roller | BW 90 AC-5 | 00825287 |
| Single Drum Roller | BW 211 D-5 SL | 00826379, 00826703, 00826825 |
| Single Drum Roller | BW 213 D-5 SL | 00826383, 00826827 |
| Tandem Roller | BW 120 SLC-5 | 00826435 |
| Tandem Roller | BW 120SL-5 | 00826609 |
| Tandem Roller | BW 100 ADe-5 | 00826733 |
| Tandem Roller | BW 120 ADe-5 | 00826735 |
| Tandem Roller | BW 120 AD-5 CC | 00826793 |
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.
