The Bomag 05850285 Steering Cylinder is a genuine OEM component designed for BW 141 AD-4, BW 151 AD-4, BW 151 AC-4, and BW 154 AD-4 tandem rollers, including AM variants. Sourced directly from Bomag, this steering cylinder matches the original in dimensions, port configuration, and hydraulic rating — no guesswork on fit. If you're servicing any of the BW 141 or BW 151 and BW 154 series tandem rollers covered by part number 05850285, this is the correct replacement to restore steering response and keep your machine operating to spec.
Key Features
- Genuine OEM Hydraulic Integrity — manufactured to Bomag's original bore tolerances and seal specifications, ensuring consistent hydraulic pressure delivery and full steering travel without internal bypass or drift
- Direct-Mount Replacement — matches the original cylinder's port placement, mounting geometry, and rod dimensions for a straightforward swap on supported tandem rollers
- Broad Tandem Roller Coverage — fits BW 141 AD-4, BW 141 AD-4 AM, BW 151 AD-4, BW 151 AD-4 AM, BW 151 AC-4, BW 151 AC-4 AM, BW151AD 4, BW 154 AD-4, and BW 154 AD-4 AM tandem rollers
- Restored Steering Precision — a worn or leaking steering cylinder causes sluggish articulation and uneven pass control on asphalt; replacing with this OEM cylinder restores sharp, predictable steering response
- Operator Safety — the steering cylinder is a safety-critical hydraulic component; using a genuine OEM part maintains the correct actuation force and fail-safe behavior the machine was engineered around
The steering cylinder is the hydraulic actuator that controls articulation on a tandem roller — when the operator turns the wheel, pressurized hydraulic fluid extends or retracts this cylinder to pivot the machine's front and rear frames relative to each other. On asphalt paving equipment like the BW 141, BW 151, and BW 154 series tandem rollers, precise articulation is essential for maintaining straight rolling passes and tight turning on confined job sites. A cylinder that leaks internally or has worn seals will cause steering lag, unpredictable drift, or loss of articulation lock — all of which compromise both paving quality and operator safety.
Part Details
| Part Number | 05850285 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Steering Cylinder |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 141 AD-4 | 00817697, 00818561, 00818955, 00818999 |
| Tandem Roller | BW 154 AD-4 AM | 00817699, 00818447 |
| Tandem Roller | BW151AD 4 | 00817843 |
| Tandem Roller | BW 154 AD-4 | 00817901, 00818557 |
| Tandem Roller | BW 151 AD-4 AM | 00817913, 00818555, 00824017 |
| Tandem Roller | BW 141 AD-4 AM | 00817925, 00818553 |
| Tandem Roller | BW 151 AC-4 AM | 00817953, 00818559, 00824025 |
| Tandem Roller | BW 151 AD-4 | 00818563, 00818957, 00824001 |
| Tandem Roller | BW 151 AC-4 | 00818565, 00819699, 00824011 |
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.
