The Bomag 78102202 Wiring Kit is a genuine OEM component designed for Bomag BW-series tandem rollers, including the BW 100 AD-3, BW 120 AD-3, BW 120 AC-3, BW 125 ADH, BW 135 AD, BW 138 AC, and BW 138 AD. Sourced directly from Bomag, this wiring kit delivers the exact connectors, wire gauges, and routing configuration specified for these machines — no guesswork on compatibility. It is the correct replacement when aging, damaged, or corroded wiring causes electrical faults across the roller's control and power circuits.
Key Features
- Genuine OEM Electrical Integrity — manufactured to Bomag's own specifications for correct conductor sizing, insulation rating, and connector keying, ensuring every circuit in your tandem roller functions as designed
- Drop-In Harness Replacement — pre-terminated connectors align directly with the OEM routing points on compatible BW-series tandem rollers, so the installation follows the original harness path without rework
- Broad BW 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, and related BW 120 and BW 138 tandem roller variants
- Restores Full Electrical Function — a failed or corroded wiring harness can disable controls, sensors, and safety circuits; replacing it with part number 78102202 brings all connected systems back online correctly
- Electrical Safety Assurance — correct wire gauge and insulation prevent overheating, short circuits, and intermittent faults that can create unsafe operating conditions on a working roller
The wiring kit in a tandem roller consolidates the electrical connections that link the engine, control panel, sensors, and operational circuits into a single, organized harness assembly. When this harness degrades — through heat cycling, vibration, moisture ingress, or physical abrasion — the result can range from intermittent warning lights to complete loss of machine control. Replacing the wiring kit with the correct OEM assembly restores clean signal paths and power delivery throughout the roller, returning the machine to full operational reliability.
Part Details
| Part Number | 78102202 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Wiring Kit |
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, 00817831, 00817833 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 135 AD | 00817471, 00818357 |
| Tandem Roller | BW 138 AC | 00817472, 00818361 |
| Tandem Roller | BW 138 AD | 00817473, 00818359 |
| Tandem Roller | BW120AD 3 | 00817571 |
| Tandem Roller | BW 138-AD | 00817572, 00818389 |
| Tandem Roller | BW120 AD-3 | 00817849 |
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.
