The Bomag 05742561 Alternator is a genuine OEM component designed for Bomag BW 154, BW 174, BW 161, BW 190, and BW 202 series tandem rollers. As a direct OEM replacement, this alternator meets Bomag's original electrical output specifications, ensuring your machine's charging system operates exactly as engineered. Confirmed fitment spans a wide range of tandem roller variants, including the BW 154 AP-4 AM, BW 154 ACP-4 AM, BW 174 AP-4, BW 174 AP-4 AM, BW 174 AP-4 AM PB, BW 174 AP-4 PB, BW 174 AP-4i AM, BW 174 AP-4i, BW 174 APO-4i, BW 174 ACP 4I AM, BW 161 AD-5, BW 161 AC-5, BW 161 ADO-5, BW 190 AD-5, BW 190 ADO-5, and BW 202 AD-5. Sourced directly from Bomag, this is the same unit installed at the factory — no guesswork on fit or compatibility.
Key Features
- OEM Electrical Output Match — Meets Bomag's original charging voltage and amperage specification for these tandem rollers, preventing undercharging or overcharging of the battery and electrical system.
- Drop-In Fitment — Engineered to the same mounting dimensions and connector configuration as the original, allowing a straightforward installation on all listed BW-series tandem roller variants.
- Broad Tandem Roller Coverage — Confirmed fit across BW 154, BW 174, BW 161, BW 190, and BW 202 tandem rollers, including AM, PB, AP, AC, AD, ADO, and 4i variants.
- Charging System Reliability — A properly functioning alternator keeps the battery charged and powers onboard electronics during operation; a failing unit can cause unexpected shutdowns and electrical faults mid-shift.
- Electrical Safety Compliance — Using a genuine OEM alternator rated for the correct output ensures the machine's wiring, fuses, and battery are not exposed to voltage irregularities that can cause damage or create hazardous conditions.
The alternator is the machine's primary source of electrical power during operation, converting mechanical energy from the engine into the DC current needed to charge the battery and supply the roller's electrical systems. On tandem rollers like the BW 161, BW 174, and BW 202 series, this includes powering controls, instrumentation, and any auxiliary electrical functions. When an alternator weakens or fails, the battery depletes, the machine becomes unreliable, and continued operation risks broader electrical damage — making timely replacement with a correctly rated unit essential to keeping the roller productive on the job.
Part Details
| Part Number | 05742561 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Alternator |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 154 AP-4 AM | 00818299 |
| Tandem Roller | BW 154 ACP-4 AM | 00818303 |
| Tandem Roller | BW 174 AP-4 AM | 00818845, 00824543 |
| Tandem Roller | BW 174 AP-4 | 00818847, 00824545 |
| Tandem Roller | BW 174 AP-4 AM PB | 00818971 |
| Tandem Roller | BW 174 AP-4 PB | 00818973 |
| Tandem Roller | BW 174 AP-4i AM | 00824093, 00824627, 00825051 |
| Tandem Roller | BW 174 AP-4i | 00824095, 00824629, 00825053 |
| Tandem Roller | BW 161 AD-5 | 00824103, 00824647 |
| Tandem Roller | BW 161 AC-5 | 00824109, 00824655 |
| Tandem Roller | BW 161 ADO-5 | 00824359, 00824657 |
| Tandem Roller | BW 190 AD-5 | 00824361, 00824651 |
| Tandem Roller | BW 190 ADO-5 | 00824363, 00824661 |
| Tandem Roller | BW 202 AD-5 | 00824649 |
| Tandem Roller | BW 174 APO-4i | 00825099 |
| Tandem Roller | BW 174 ACP 4I AM | 00825103 |
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.
