The Bomag 05850007 Steering Cylinder is a genuine OEM component designed for Bomag tandem rollers across a wide range of BW-series models. Sourced directly from Bomag, this steering cylinder delivers the correct geometry, port dimensions, and stroke specification required for proper articulated steering function on compatible machines. This cylinder fits an extensive lineup including BW 100, BW 115, BW 120, BW 125, BW 131, BW 135, BW 138, BW 141, BW 144, BW 151, BW 154, BW 170, and BW 174 tandem rollers across multiple generation variants. When your machine's steering response becomes sluggish, inconsistent, or fails entirely, replacing the worn cylinder with a genuine part number 05850007 restores the hydraulic steering system to proper operating condition.
Key Features
- Genuine OEM Hydraulic Integrity — manufactured to Bomag's original specifications, ensuring correct operating pressure, cylinder bore, and seal compatibility for tandem roller steering systems
- Direct-Fit Replacement — matches the original mounting points, hydraulic port sizing, and stroke length so this steering cylinder installs into compatible BW tandem rollers without modification
- Broad BW Tandem Roller Coverage — fits BW 100, BW 115, BW 120, BW 125, BW 131, BW 135, BW 138, BW 141, BW 144, BW 151, BW 154, BW 170, and BW 174 tandem rollers, including AC, AD, ACH, ADH, ACW, and AM variants across multiple generations
- Restored Steering Precision — a functioning steering cylinder is essential for accurate articulation and straight-line tracking on asphalt; a failed or leaking cylinder causes erratic steering response and compromises compaction quality
- Hydraulic Safety Assurance — as a critical steering system component, using an OEM-spec cylinder ensures the machine responds predictably to operator input, supporting safe operation on live paving sites
The steering cylinder is a hydraulic actuator that controls the articulation joint between the front and rear frames of a tandem roller. When the operator turns the steering wheel or engages the steering controls, pressurized hydraulic fluid extends or retracts the cylinder, pivoting the machine's frame sections to change direction. A worn, damaged, or leaking steering cylinder causes poor steering response, fluid loss, and can result in the machine wandering or becoming difficult to control — all of which directly impact compaction quality and operator safety on the job.
Part Details
| Part Number | 05850007 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Steering Cylinder |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 120 AD | 00810019, 00810051, 00810146 |
| Tandem Roller | BW 138 AD | 00810105, 00810191, 00817473, 00818359 |
| Tandem Roller | BW 135 AD | 00810120, 00817471, 00818357 |
| Tandem Roller | BW 100 AC-3 | 00817457 |
| Tandem Roller | BW 100 AD-3 | 00817458 |
| Tandem Roller | BW 120 AC-3 | 00817462 |
| Tandem Roller | BW 120 AD-3 | 00817463, 00817831, 00817833 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 138 AC | 00817472, 00818361 |
| Tandem Roller | BW 141 AD-2 | 00817474 |
| Tandem Roller | BW 144 AD-2 | 00817477, 00817478 |
| Tandem Roller | BW 151 AC-2 | 00817485 |
| Tandem Roller | BW 151 AD-2 | 00817486 |
| Tandem Roller | BW 154 AD-2 | 00817490, 00817491, 00817599 |
| Tandem Roller | BW 170 AD | 00817498 |
| Tandem Roller | BW 174 AC | 00817499 |
| Tandem Roller | BW 174 AC AM | 00817500 |
| Tandem Roller | BW 174 AD | 00817501 |
| Tandem Roller | BW 174 AD AM | 00817502 |
| Tandem Roller | BW120AD 3 | 00817571 |
| Tandem Roller | BW 138-AD | 00817572, 00818389 |
| Tandem Roller | BW141AD 2 | 00817573 |
| Tandem Roller | BW 100 AD-4 | 00817685 |
| Tandem Roller | BW 100 AC-4 | 00817687 |
| Tandem Roller | BW 120 AD-4 | 00817689 |
| Tandem Roller | BW 120 AC-4 | 00817691 |
| Tandem Roller | BW 174 AD-2 AM | 00817693 |
| Tandem Roller | BW 174 AD-2 | 00817695 |
| Tandem Roller | BW 174 AC-2 | 00817712 |
| Tandem Roller | BW 174 AC-2 AM | 00817714 |
| Tandem Roller | BW120 AD-3 | 00817849 |
| Tandem Roller | BW 115 AC-3 | 00818693 |
| Tandem Roller | BW 115 AD-3 | 00818695 |
| Tandem Roller | BW 115 AC-5 | 00824933 |
| Tandem Roller | BW 131 ACW-5 | 00824937 |
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.
