The Bomag 05558642 Reducer Socket is a genuine OEM component designed for Bomag tandem rollers spanning the BW 100, BW 120, BW 125, BW 135, BW 138, BW 141, BW 144, BW 151, BW 154, and BW 164 series. As a factory-sourced part, this reducer socket carries the exact dimensions and thread specification required for a direct, trouble-free installation. Confirmed fitment covers a wide range of Bomag tandem rollers including the BW 100 AD-5, BW 120 AD-5, BW 138 AD, BW 164 AD, and many additional AC, AD, and ACH variants across multiple production generations. When you need an exact-match replacement you can count on, sourcing by part number 05558642 ensures you receive the correct component every time.
Key Features
- Genuine OEM Thread Integrity — manufactured to Bomag's original thread and dimensional tolerances, so the reducer socket seats and seals correctly without the risk of cross-threading or leakage that a mismatched fitting can cause.
- Direct Bolt-In Replacement — matches the original port size and external drive specification of the application, allowing straightforward installation without reworking fittings or adjacent hardware.
- Broad Tandem Roller Coverage — fits a wide range of Bomag tandem rollers including the BW 100, BW 120, BW 125, BW 135, BW 138, BW 141, BW 144, BW 151, BW 154, and BW 164 across AC, AD, ACH, and ADH variants and multiple production generations.
- System Pressure Reliability — a correctly fitted reducer socket maintains rated hydraulic or fluid-system pressure at the connection point; a worn or improperly sized socket can cause pressure drop, leaks, or system contamination.
- Verified Part Number Traceability — ordering by genuine Bomag part number 05558642 confirms you are receiving the exact component specified for your machine, eliminating guesswork when sourcing from the Bomag parts catalog.
A reducer socket is a threaded adapter fitting that steps down from one port or pipe size to another within a fluid system — hydraulic, lubrication, or coolant — allowing components with different thread sizes to connect without fabricating custom lines or fittings. On Bomag tandem rollers, fittings of this type are used throughout the hydraulic and service circuits to route fluid efficiently between components. When a reducer socket becomes damaged, corroded, or stripped, it can compromise the integrity of the entire circuit at that junction, leading to fluid loss, contamination ingress, or an inability to maintain the operating pressure the system requires for proper roller function.
Part Details
| Part Number | 05558642 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Reducer Socket |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AD | 00810105, 00810191, 00817473, 00818359 |
| Tandem Roller | BW 135 AD | 00810120, 00817471, 00818357 |
| Tandem Roller | BW 164 AD | 00810155 |
| 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, 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 | BW120AD 3 | 00817571 |
| Tandem Roller | BW 138-AD | 00817572, 00818389 |
| Tandem Roller | BW141AD 2 | 00817573 |
| Tandem Roller | BW 100 AD-4 | 00817685, 00818465, 00824271, 00824273 |
| Tandem Roller | BW 100 AC-4 | 00817687, 00818467, 00818731 |
| Tandem Roller | BW 120 AD-4 | 00817689, 00818469, 00818477, 00818593, 00818733, 00824173 |
| Tandem Roller | BW 120 AC-4 | 00817691, 00818471, 00818597 |
| Tandem Roller | BW 125 AD-4 | 00817937, 00818473 |
| Tandem Roller | BW 125 AC-4 | 00818271, 00818475 |
| Tandem Roller | BW120AD 4 | 00818595, 00818871 |
| Tandem Roller | BW 100 AD-5 | 00824029 |
| Tandem Roller | BW 120 AC-5 | 00824031 |
| Tandem Roller | BW 120 AD-5 | 00824033 |
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.
