The Bomag 05546921 Pump Unit is a genuine OEM component designed for Bomag BW-series tandem rollers, including the BW 141 AD-4, BW 151 AD-4, BW 161 AD-4, BW 190 AD-4, BW 202 AD-4, BW 203 AD-4, and BW 205 AD 4, among others in the -4 generation lineup. Sourced directly from Bomag, this pump unit carries the same specifications as the original assembly fitted at the factory, ensuring a correct, drop-in match for the hydraulic system in your machine. This pump unit covers an extensive range of BW-series tandem roller variants, including AM, AC, ADH, ADO, and EU-Flex configurations, making it the right choice across a wide cross-section of the BW 141 through BW 205 tandem roller family.
Key Features
- Genuine OEM Hydraulic Performance — built to Bomag's exact flow-rate and pressure specifications for the hydraulic circuits on BW-series tandem rollers, so output matches what the system was engineered to receive
- Direct-Fit Replacement — matches the original mounting interface, port configuration, and drive coupling of the outgoing unit, allowing straightforward installation without modification
- Broad Tandem Roller Coverage — fits BW 141 AD-4, BW 151 AD-4, BW 154 AD-4, BW 161 AD-4, BW 161 ADH-4, BW 190 AD-4, BW 202 AD-4, BW 203 AD-4, BW 205 AD 4, and additional AM, AC, ADO, and EU-Flex variants
- Sustained Compaction Output — a correctly functioning pump unit maintains consistent hydraulic pressure to the drum drive and vibration circuits, preserving the compaction force and travel performance the machine is rated for
- Genuine Part Number Assurance — ordering by part number 05546921 confirms you are receiving the correct Bomag-authorized unit for your specific tandem roller variant, eliminating cross-reference guesswork
The pump unit is the heart of a tandem roller's hydraulic system, generating the pressurized flow that drives propulsion, drum vibration, and steering functions. When the pump unit degrades or fails, the machine may exhibit sluggish travel, reduced vibration amplitude, or complete loss of hydraulic function — directly compromising compaction quality and productivity. Replacing a worn pump unit with a genuine Bomag part restores the hydraulic output the system depends on, bringing the roller back to its full operating capability.
Part Details
| Part Number | 05546921 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Pump Unit |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 161 AD-4 | 00817641, 00818481, 00818959, 00824003, 00824735 |
| Tandem Roller | BW 141 AD-4 | 00817697, 00818561, 00818955, 00818999 |
| Tandem Roller | BW 154 AD-4 AM | 00817699, 00818447 |
| Tandem Roller | BW 161 ADH-4 | 00817739 |
| Tandem Roller | BW 190 AD-4 | 00817823, 00818379, 00818965, 00824009 |
| Tandem Roller | BW 190 AD-4 AM | 00817825, 00818309, 00824021 |
| 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 161 AC-4 | 00817947, 00818589, 00818967 |
| Tandem Roller | BW 161 ADH-4 CHINA | 00818365 |
| Tandem Roller | BW 202 AD-4 | 00818381, 00818961, 00824005 |
| Tandem Roller | BW 151 AC-4 AM | 00818559, 00824025 |
| Tandem Roller | BW 151 AD-4 | 00818563, 00818957, 00824001 |
| Tandem Roller | BW 151 AC-4 | 00818565, 00824011 |
| Tandem Roller | BW 203 AD-4 AM | 00818591, 00824019, 00825067 |
| Tandem Roller | BW 203 AD-4 | 00818599, 00818963 |
| Tandem Roller | BW 161 ADO-4 | 00824333, 00824335 |
| Tandem Roller | BW 161 AD-4 EU-Flex | 00824393 |
| Tandem Roller | BW 202 AD-4 EU-Flex | 00824395 |
| Tandem Roller | BW 203 AD-4 AM EU-Flex | 00824397 |
| Tandem Roller | BW203AD-4 | 00824739, 00826243 |
| Tandem Roller | BW 205 AD 4 | 00824889 |
| Tandem Roller | BW 203 ADO-4 | 00825049 |
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.
