The Bomag 78003312 Module is a genuine OEM component designed for Bomag BW 100 AD-3, BW 120 AC-3, BW 120 AD-3, BW 125 ADH, BW 135 AD, BW 138 AC, BW 138 AD, BW120AD 3, and BW 138-AD tandem rollers. As a direct OEM replacement, this module is sourced through Bomag's authorized parts network, ensuring the correct specifications for your machine. This part installs directly in place of the original, covering the full range of compatible BW-series tandem roller variants listed above. Contact DHS Equipment to confirm fitment for your specific serial range before ordering.
Key Features
- Genuine OEM Specification — sourced directly from Bomag's authorized parts network, meaning this module meets the exact electrical and operational parameters of the original component it replaces.
- Direct Drop-In Replacement — engineered to the same connector, mounting, and interface configuration as the factory-installed unit, so installation follows the original procedure without adaptation.
- Broad Tandem Roller Coverage — fits BW 100 AD-3, BW 120 AC-3, BW 120 AD-3, BW 125 ADH, BW 135 AD, BW 138 AC, BW 138 AD, BW120AD 3, and BW 138-AD tandem rollers, consolidating parts sourcing across multiple machine variants.
- Restored Machine Control — a correctly functioning module keeps the roller's electronic systems operating as intended; a failed or degraded module can trigger fault codes, interrupt machine functions, or prevent operation entirely.
- Electrical System Integrity — as an OEM part, this module is built to the correct signal, voltage, and communication standards required by Bomag's onboard systems, protecting connected components from compatibility issues.
A module in Bomag tandem rollers serves as a control or processing unit within the machine's electronic architecture, managing inputs and outputs for one or more operational systems — such as drive control, vibration management, or instrument communication. When this component fails, the affected system may produce erratic behavior, fault warnings, or a complete loss of function in the circuit it governs. Replacing the module with a genuine OEM part restores the correct signal processing and system communication, returning the roller to full operational status.
Part Details
| Part Number | 78003312 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Module |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 100 AD-3 | 00817458 |
| Tandem Roller | BW 120 AC-3 | 00817462 |
| Tandem Roller | BW 120 AD-3 | 00817463 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 135 AD | 00817471 |
| Tandem Roller | BW 138 AC | 00817472 |
| Tandem Roller | BW 138 AD | 00817473 |
| Tandem Roller | BW120AD 3 | 00817571 |
| Tandem Roller | BW 138-AD | 00817572 |
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.
