The Bomag 05546651 Control Unit is a genuine OEM component designed for Bomag BW 177 and BW 179 single drum rollers, as well as BW 154 and BW 174 tandem rollers. As a direct OEM replacement, this control unit is produced to the same specifications as the original, ensuring accurate signal processing and seamless integration with your machine's existing wiring and systems. This part is confirmed to fit the BW 177 DH-4, BW 177 PDH-4, BW 179 DH-4, BW 179 PDH-4, BW 154 AP-4, BW 154 AP-4 AM, BW 154 ACP-4, BW 154 ACP-4 AM, BW 154 AP-4i, BW 154 AP-4i AM, BW 154 ACP-4i AM, BW 174 AP-4, BW 174 AP-4 AM, BW 174 AP-4 AM PB, BW 174 AP-4 PB, BW 174 AP-4i, BW 174 AP-4i AM, BW 174 APO-4i, and BW 174 ACP 4I AM. Sourced directly from Bomag, this unit delivers the correct electrical characteristics and connector compatibility your roller depends on.
Key Features
- Genuine OEM Electrical Specification — manufactured to Bomag's original output and signal tolerances, ensuring the control unit communicates correctly with sensors, actuators, and the machine's onboard systems
- Direct Drop-In Replacement — matches the original unit's connector configuration and mounting footprint, allowing straightforward installation without rewiring or adaptation
- Broad Fitment Coverage — confirmed for BW 177 and BW 179 single drum rollers and BW 154 and BW 174 tandem rollers, including DH, PDH, AP, ACP, and APO variants across the -4 and -4i generations
- Restored Machine Control — a functioning control unit keeps compaction functions, drive response, and operator inputs operating as intended; a failed unit can cause erratic behavior, loss of function, or machine shutdown
- Electrical System Integrity — as a safety-critical electronic component governing machine operation, using a genuine OEM unit ensures correct fault detection and system protection behavior are preserved
The control unit serves as the electronic brain for key machine functions, receiving input signals from operator controls and sensors, then directing outputs to drive systems, compaction mechanisms, and instrumentation. When this unit degrades or fails, the machine may exhibit erratic responses, loss of drive or vibration control, or fail to start altogether. Replacing it with a genuine Bomag part number 05546651 restores full, correctly calibrated control so the roller can return to productive compaction work.
Part Details
| Part Number | 05546651 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Control Unit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 177 DH-4 | 00817761, 00817765, 00818453, 00818543, 00824037, 00824133 |
| Single Drum Roller | BW 177 PDH-4 | 00817763, 00818541 |
| Single Drum Roller | BW 179 DH-4 | 00817767, 00818545, 00824137 |
| Single Drum Roller | BW 179 PDH-4 | 00817769, 00818549, 00824139 |
| Tandem Roller | BW 154 AP-4 AM | 00818299, 00824177, 00824715 |
| Tandem Roller | BW 154 AP-4 | 00818301, 00824179, 00824717 |
| Tandem Roller | BW 154 ACP-4 AM | 00818303, 00824719 |
| Tandem Roller | BW 154 ACP-4 | 00818305, 00824721 |
| Tandem Roller | BW 174 AP-4 AM | 00818655, 00818845, 00824543 |
| Tandem Roller | BW 174 AP-4 | 00818657, 00818847, 00824545 |
| Tandem Roller | BW 174 AP-4 AM PB | 00818971 |
| Tandem Roller | BW 174 AP-4 PB | 00818973 |
| Tandem Roller | BW 174 AP-4i AM | 00824093, 00824627, 00825051 |
| Tandem Roller | BW 174 AP-4i | 00824095, 00824629, 00825053 |
| Tandem Roller | BW 154 AP-4i AM | 00824385 |
| Tandem Roller | BW 154 AP-4i | 00824587 |
| Tandem Roller | BW 154 ACP-4i AM | 00824589 |
| Tandem Roller | BW 174 APO-4i | 00825099 |
| Tandem Roller | BW 174 ACP 4I AM | 00825103 |
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.
