The Bomag 78102303 Wire Harness is a genuine OEM component designed for Bomag tandem rollers including the BW 135 AD, BW 138 AD, 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 138 AC, BW120AD 3, and BW 138-AD. Sourced directly from Bomag, this wire harness is manufactured to the exact connector layout, wire gauge, and routing specifications of the original — ensuring a correct, trouble-free installation without the guesswork of non-OEM alternatives. When your tandem roller's electrical system needs attention, replacing the harness with the correct Bomag part number 78102303 keeps every circuit operating exactly as designed.
Key Features
- OEM Electrical Integrity — manufactured to the precise connector pinout, wire gauge, and insulation rating of the original harness, preserving correct voltage distribution and signal accuracy across all circuits
- Direct Connector Match — plugs directly into the existing harness routing and connector points on compatible Bomag tandem rollers with no splicing or adaptation needed
- Broad Tandem Roller Coverage — fits a wide range of Bomag tandem rollers including the BW 100 AC-3, BW 120 AD-3, BW 125 ADH, BW 135 AD, BW 138 AD, and related AC and AD variants
- Restored Electrical Performance — a damaged or degraded wire harness can cause intermittent faults, failed controls, and sensor errors; this replacement restores full electrical function to the machine
- Electrical Safety Compliance — correct harness routing and insulation prevent shorts, arcing, and unintended current paths that can damage control modules or create fire risk on the machine
The wire harness is the central electrical backbone of the tandem roller, bundling and routing power and signal wiring between the engine, control panel, sensors, and hydraulic solenoids. A healthy harness ensures every system — from drum vibration control to propulsion — receives clean, uninterrupted electrical signals. When a harness deteriorates through abrasion, heat exposure, or connector corrosion, operators may experience erratic machine behavior, warning faults, or complete loss of function in one or more systems; replacing it with the correct OEM part restores full, predictable operation.
Part Details
| Part Number | 78102303 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Wire Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 135 AD | 00810120, 00817471 |
| 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 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.
