The Bomag 05850412 Steering Cylinder is a genuine OEM component designed for BW 161 AD-5, BW 190 AD-5, and BW 206 AD-5 tandem rollers. Sourced directly from Bomag, this steering cylinder meets the exact engineering specifications of the original unit, ensuring consistent hydraulic actuation and reliable directional control on every pass. This part is confirmed to fit the BW 161 AD-5, BW 161 ADO-5, BW 190 AD-5, BW 190 ADO-5, BW 206 AD-5, and BW 206 AD-5 AM tandem rollers, covering the full range of AD-5 series machines in this lineup.
Key Features
- Genuine OEM Hydraulic Precision — manufactured to Bomag's original tolerances for correct hydraulic pressure response and full steering travel in tandem roller applications
- Direct-Fit Replacement — mounts to the original cylinder ports and mounting points, allowing a straightforward swap without reworking hydraulic lines or brackets
- Broad AD-5 Series Coverage — fits BW 161 AD-5, BW 161 ADO-5, BW 190 AD-5, BW 190 ADO-5, BW 206 AD-5, and BW 206 AD-5 AM tandem rollers
- Restore Steering Response — a worn or leaking steering cylinder causes sluggish articulation and reduced operator control; replacing it brings the machine back to full, responsive performance
- Operational Safety — precise steering is critical on asphalt paving applications where lane accuracy and edge control directly affect both output quality and crew safety
The steering cylinder is the hydraulic actuator responsible for articulating the front and rear frames of a tandem roller, allowing the operator to steer accurately across asphalt surfaces. It converts hydraulic pressure from the steering circuit into controlled lateral movement, keeping the machine on line through curves, edges, and tight passes. When the cylinder develops internal leaks or seal wear, steering becomes imprecise or slow to respond — increasing the risk of overruns and uneven compaction — making timely replacement essential for both performance and safe machine operation.
Part Details
| Part Number | 05850412 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Steering Cylinder |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 161 AD-5 | 00824103, 00824647, 00824945 |
| Tandem Roller | BW 206 AD-5 | 00824283 |
| Tandem Roller | BW 206 AD-5 AM | 00824287 |
| Tandem Roller | BW 161 ADO-5 | 00824359, 00824657 |
| Tandem Roller | BW 190 AD-5 | 00824361, 00824603, 00824651 |
| Tandem Roller | BW 190 ADO-5 | 00824363, 00824661 |
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.
