The Bomag 05902138 Steering Unit is a genuine OEM replacement built for Bomag single drum rollers across the BW 142, BW 145, BW 172, BW 177, BW 179, and BW 212 series, as well as the C 825 C single drum roller. Sourced directly from Bomag, this steering unit meets the same specifications as the original component installed at the factory. It is a direct-fit replacement for a wide range of BW-series single drum rollers spanning the D-2, D-3, DH-3, PDH-3, DH-4, and generation-4 variants, ensuring compatibility across multiple production runs. If you are maintaining or rebuilding a Bomag single drum roller and need a dependable steering unit, part number 05902138 is the correct OEM solution.
Key Features
- Genuine OEM Hydraulic Precision — manufactured to Bomag's original specifications, this steering unit delivers the correct hydraulic flow and pressure response required for smooth, accurate machine steering
- Drop-In Fitment — engineered to match the original mounting ports, shaft dimensions, and hydraulic connections of the replaced unit, allowing straightforward installation without reworking the steering circuit
- Broad Single Drum Roller Coverage — fits BW 142 D-2, BW 145, BW 172 D-2, BW 177, BW 179 DH-4, BW 212 D-2, and C 825 C single drum rollers, among others, across multiple generation variants
- Restored Operator Control — a worn or failing steering unit causes sluggish, unresponsive, or erratic articulation; replacing it with this OEM unit restores full, predictable directional control on the drum roller
- Safety-Critical Replacement — the steering unit is directly responsible for machine directional control on site; using a genuine OEM component ensures the hydraulic steering circuit performs within design tolerances, supporting safe machine operation
The steering unit is a hydraulic rotary valve that translates input from the operator's steering wheel into controlled hydraulic flow, directing fluid to the articulation or steering cylinders that change the machine's direction of travel. On single drum rollers like the BW-series, precise steering response is essential for accurate compaction passes and safe maneuvering on grade. When the steering unit wears or fails, operators typically notice increased steering effort, slow response, or a complete loss of directional control — conditions that stop productive compaction work and create a safety hazard on the job.
Part Details
| Part Number | 05902138 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Steering Unit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Single Drum Roller | BW 172 D-2 | 00810074 |
| Single Drum Roller | BW 142 D-2 | 00810077 |
| Single Drum Roller | BW 212 D-2 | 00810687 |
| Single Drum Roller | BW 177 D-3 | 00815310, 00817503 |
| Single Drum Roller | BW 145 D-3 | 00817479, 00817637 |
| Single Drum Roller | BW 145 DH-3 | 00817481, 00817638 |
| Single Drum Roller | BW 145 PDH-3 | 00817483, 00817639 |
| Single Drum Roller | BW 177 DH-3 | 00817505, 00817751 |
| Single Drum Roller | BW 177 DH 3 | 00817506 |
| Single Drum Roller | BW 177 PDH-3 | 00817508 |
| Single Drum Roller | BW145D 3 | 00817576, 00817927 |
| Single Drum Roller | BW145PDH 3 | 00817577 |
| Single Drum Roller | C 825 C | 00817578 |
| Single Drum Roller | BW177PDH 3 | 00817579 |
| Single Drum Roller | BW177DH-3 | 00817580 |
| Single Drum Roller | BW177D-3 | 00817586 |
| Single Drum Roller | BW 177 D-3 USA | 00817675 |
| Single Drum Roller | BW 177 DH-3 USA | 00817677 |
| Single Drum Roller | BW 177 PDH-3 USA | 00817679 |
| Single Drum Roller | BW 177 DH-4 | 00817761 |
| Single Drum Roller | BW 179 DH-4 | 00817767 |
| Single Drum Roller | BW177D 3 | 00817863 |
| Single Drum Roller | BW177DH 3 | 00817865 |
| Single Drum Roller | BW 145-DH-3 | 00817929 |
| Single Drum Roller | BW145DH 40 | 00818323, 00818939, 00818941 |
| Single Drum Roller | BW 145 DH 40 BW 145 DH 4 | 00818325 |
| Single Drum Roller | BW 145 PDH 40 BW145 PDH 4 | 00818327 |
| Single Drum Roller | BW145D 40 | 00818935, 00818937 |
| Single Drum Roller | BW145PDH 40 | 00818943 |
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.
