The Bomag 78003199 Wire Harness is a genuine OEM 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 wire harness matches the original specifications for connector type, conductor gauge, and routing layout — so it installs without adaptation. When an electrical fault or damaged harness is holding up your tandem roller, replacing it with the correct OEM part number 78003199 is the fastest path back to full operation.
Key Features
- OEM Conductor and Connector Integrity — Built to Bomag's original specifications for wire gauge, insulation rating, and connector pinout, ensuring correct signal and power delivery throughout the harness.
- Direct Drop-In Replacement — Matches the original routing, length, and termination points of the factory harness for a straightforward swap on compatible BW-series tandem rollers.
- Broad Tandem Roller Coverage — Fits BW 100, BW 120, BW 125, BW 135, and BW 138 tandem rollers across AC and AD variants, including the BW 138 AD, BW 135 AC, BW 125 ACH, and BW 120 AD-3.
- Restored Electrical System Reliability — A worn or damaged wire harness causes intermittent faults, sensor dropouts, and control failures; this replacement restores consistent electrical communication across all connected systems.
- Electrical Safety Compliance — Correct insulation ratings and secure connector seating help prevent shorts, ground faults, and unintended electrical events that can arise from degraded or incorrect wiring.
The wire harness is the central electrical backbone of the tandem roller, routing power and control signals between the engine, operator controls, sensors, and auxiliary systems. When the harness degrades — through abrasion, heat damage, or connector corrosion — the result is unreliable machine behavior ranging from sensor errors and control malfunctions to complete electrical failure. Replacing a damaged harness with a correctly specified OEM unit like part number 78003199 ensures every circuit carries the right signal at the right voltage, restoring full machine function and eliminating the guesswork that comes with chasing intermittent electrical faults.
Part Details
| Part Number | 78003199 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Wire Harness |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 138 AD | 00810191, 00817473, 00818359 |
| 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, 00817833 |
| Tandem Roller | BW 125 ACH | 00817466 |
| Tandem Roller | BW 125 ADH | 00817467 |
| Tandem Roller | BW 135 AC | 00817470 |
| Tandem Roller | BW 135 AD | 00817471, 00818357 |
| Tandem Roller | BW 138 AC | 00817472, 00818361 |
| Tandem Roller | BW120AD 3 | 00817571 |
| Tandem Roller | BW 138-AD | 00817572, 00818389 |
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.
