The Bomag 05878170 Control Block is a genuine OEM hydraulic component designed for Bomag BW 80 AD-2, BW 80 ADS, BW 90 AC-2, BW 90 AD-2 tandem rollers, and BW 900-2 and BW 900-50 walk-behind light rollers. As a direct OEM replacement, this control block is manufactured to the same specifications as the original unit, ensuring correct integration with the machine's hydraulic system. Sourced directly through authorized Bomag supply channels, part number 05878170 is the correct service part for maintaining full hydraulic control functionality across these roller models.
Key Features
- Genuine OEM Hydraulic Precision — manufactured to exact original specifications, ensuring correct flow control, porting, and pressure ratings for these roller hydraulic circuits
- Direct Replacement Fit — matches the original mounting configuration and port layout, allowing installation without modification to existing hydraulic lines or brackets
- Broad Roller Coverage — fits BW 80 AD-2, BW 80 ADS, BW 90 AC-2, and BW 90 AD-2 tandem rollers, as well as BW 900-2 and BW 900-50 walk-behind light rollers
- Restored Hydraulic Response — a fully functioning control block ensures consistent directional control and drive response; a worn or failed unit can cause erratic movement, loss of drive, or unresponsive controls
- Hydraulic System Integrity — OEM-matched internal sealing and valve geometry help prevent internal leakage and pressure loss that can compromise roller performance over time
The control block is a central hydraulic valve assembly that directs pressurized fluid to the drive and vibration circuits within the roller. It governs the flow and direction of hydraulic oil, translating operator inputs into controlled machine movement and compaction functions. When a control block fails or develops internal leakage, the machine may exhibit sluggish or unpredictable response, loss of drive in one or both directions, or reduced compaction output — making timely replacement essential to keeping these rollers operating correctly.
Part Details
| Part Number | 05878170 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Control Block |
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, 00818045 |
| Tandem Roller | BW 90 AD-2 | 00817569, 00818041, 00818507 |
| Walk-Behind / Light Roller | BW 900-2 | 00818363 |
| Walk-Behind / Light Roller | BW 900-50 | 00818921, 00825617, 00826539, 00827119 |
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.
