The Bomag 05818831 Steering Unit is a genuine OEM component designed for BW 100, BW 120, and BW 138 series tandem rollers. Sourced directly from Bomag, this steering unit is built to the same specifications as the original, ensuring a direct, correct-fit installation on compatible machines. This unit covers a wide range of generation-5 tandem roller variants, including the BW 100 AC-5, BW 100 AD-5, BW 100 ADe-5, BW 100 SL-5, BW 120 AC-5, BW 120 AD-5, BW 120 AD-5 CC, BW 120 ADe-5, BW 120 SL-5, BW 120 SLC-5, BW 138 AC-5, and BW 138 AD-5. When your tandem roller's steering response becomes sluggish, imprecise, or fails entirely, replacing this unit with a genuine Bomag part restores full operator control and keeps the machine performing to spec.
Key Features
- Genuine OEM Hydraulic Integrity — manufactured to Bomag's original pressure and flow specifications for the steering circuit, ensuring the response feel and control precision your operators rely on are fully restored
- Direct Installation Fit — matches the original mounting configuration and hydraulic port layout of the BW 100, BW 120, and BW 138 tandem roller steering systems, slotting in without adaptation
- Broad Generation-5 Tandem Roller Coverage — compatible with AC-5, AD-5, ADe-5, SL-5, SLC-5, and CC variants across the BW 100, BW 120, and BW 138 series, including part number 05818831 verified fitment
- Restored Steering Accuracy — a functioning steering unit delivers precise articulation control critical for tight asphalt pass alignment; a worn or failed unit causes drift, uneven compaction patterns, and lost operator confidence
- Operational Safety — the steering unit is a safety-critical hydraulic component; using a genuine Bomag replacement ensures the system operates within designed pressure tolerances, reducing the risk of steering loss during operation
The steering unit is the heart of a tandem roller's hydraulic steering system, translating input from the steering wheel into precise directional movement of the machine's articulated frame. It meters hydraulic fluid flow to the steering cylinder in proportion to operator input, giving the machine its characteristic responsive, low-effort handling. When this component wears or fails, operators experience increased steering effort, wandering, or a complete loss of directional control — all of which compromise compaction quality and site safety. Replacing a degraded steering unit promptly with a genuine Bomag part restores the hydraulic balance the system was designed around.
Part Details
| Part Number | 05818831 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Steering Unit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AC-5 | 00818719, 00824923, 00824929, 00825561 |
| Tandem Roller | BW 138 AD-5 | 00818721, 00824175, 00824921, 00824927, 00825351, 00825559 |
| Tandem Roller | BW 135 AD-5 | 00818723, 00824931, 00825355, 00825563 |
| Tandem Roller | BW 100 AD-5 | 00824029, 00824561, 00824617, 00824833, 00824995, 00825357, 00825373, 00825565, 00825643, 00826215, 00826219, 00826813, 00827043 |
| Tandem Roller | BW 120 AC-5 | 00824031, 00824619, 00824839, 00825363, 00825571, 00826093, 00827049 |
| Tandem Roller | BW 120 AD-5 | 00824033, 00824563, 00824615, 00824835, 00824997, 00825359, 00825567, 00825645, 00826049, 00826217, 00826221, 00826639, 00826689, 00827045 |
| Tandem Roller | BW 100 AC-5 | 00824275, 00824621, 00824837, 00825361, 00825569, 00826091, 00827047 |
| Tandem Roller | BW 120 SL-5 | 00824537, 00824559, 00825001, 00825615, 00826779, 00827055 |
| Tandem Roller | BW 100 SL-5 | 00824557, 00824999, 00826553 |
| Tandem Roller | BW 120 SLC-5 | 00826435 |
| Tandem Roller | BW 120SL-5 | 00826609 |
| Tandem Roller | BW 100 ADe-5 | 00826733 |
| Tandem Roller | BW 120 ADe-5 | 00826735 |
| Tandem Roller | BW 120 AD-5 CC | 00826793 |
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.
