The Bomag 78003137 Earth Ground Wire is a genuine OEM electrical component designed for Bomag BW-series tandem rollers, including the BW 100 AC-3, BW 100 AD-3, BW 120 AC-3, BW 120 AD-3, BW 125 ACH, BW 125 ADH, BW 135 AC, BW 135 AD, BW 138 AC, and BW 138 AD. Sourced directly from Bomag, this ground wire is manufactured to the exact resistance and routing specification of the original part, ensuring a correct, code-matched installation. It is a direct replacement for the factory component, covering the full range of AC and AD drive variants within the BW tandem roller family.
Key Features
- OEM Electrical Specification — manufactured to Bomag's exact conductor gauge, insulation grade, and terminal configuration for proper grounding continuity in tandem roller electrical systems
- Direct OEM Replacement — connects to the factory mounting points without modification, restoring the original ground path as intended during assembly
- Broad Tandem Roller Coverage — fits BW 100, BW 120, BW 125, BW 135, and BW 138 tandem rollers across AC and AD drive configurations, including the BW 125 ACH and BW 125 ADH variants
- Electrical System Integrity — a properly functioning earth ground wire keeps onboard electronics, sensors, and control systems operating within designed voltage parameters, preventing erratic behavior or component damage
- Safety-Critical Grounding Path — correct grounding protects operators and sensitive electrical components from voltage faults; a degraded or broken ground wire can cause intermittent faults, control failures, or electrical hazards on the machine
The earth ground wire provides the return path that completes electrical circuits throughout the machine, anchoring the electrical system to the chassis at a stable reference voltage. Without a solid ground connection, voltage irregularities can affect everything from engine controls to vibration system electronics, producing symptoms that are difficult to diagnose and potentially damaging to downstream components. Replacing a corroded, broken, or damaged ground wire with a genuine Bomag part number 78003137 restores proper circuit continuity and protects the full electrical system on your tandem roller.
Part Details
| Part Number | 78003137 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Earth Ground Wire |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AD | 00810191, 00817473 |
| 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 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 135 AD | 00817471 |
| Tandem Roller | BW 138 AC | 00817472 |
| 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.
