The Bomag 87270102 Rotary Switch is a genuine OEM electrical component designed for Bomag BW-series tandem rollers, BC-series refuse and landfill compactors, and the MPH 121 recycler/stabilizer. Sourced directly through Bomag's authorized parts network, this rotary switch delivers an exact OEM match in form, function, and electrical specification. Confirmed fitment spans models including the BW 144 AD-2, BW 154 AD-2, BW 170 AD, BW 174 AC, BW 174 AC AM, BW 174 AD, BW 174 AD AM, BW 180 AD, BW 184 AD, BC 972 RB, BC 1172 RB, and MPH 121. When an operator control switch wears out or fails, replacing it with part number 87270102 restores proper system switching function without guesswork.
Key Features
- OEM Electrical Specification — matched to Bomag's original resistance, contact rating, and switching characteristics for this switch position, ensuring the circuit responds exactly as designed
- Direct Drop-In Replacement — manufactured to the same mounting footprint and connector interface as the original, so this rotary switch installs into the existing housing without modification
- Broad Fitment Coverage — confirmed for BW-series tandem rollers including the BW 174 AD, BW 180 AD, and BW 184 AD, BC 972 RB and BC 1172 RB refuse/landfill compactors, and the MPH 121 recycler/stabilizer
- Restores Operator Control — a worn or corroded rotary switch causes erratic or unresponsive system behavior; replacing it with a genuine OEM unit brings control response back to full working order
- Electrical Safety Integrity — correct contact rating and switching logic matter for operator safety; using the specified OEM switch prevents unintended circuit behavior that an out-of-spec substitute can introduce
A rotary switch serves as a multi-position selector in the machine's electrical control circuit, allowing the operator to engage or toggle between system functions by rotating a keyed or knurled dial through defined detent positions. Each position completes or opens a specific circuit path, directing electrical signals to the appropriate system — such as mode selection, lighting, or auxiliary functions. When the switch wears internally or its contacts corrode, the machine may lose response to operator inputs, behave intermittently, or fail to activate a function entirely, making prompt replacement essential to maintaining safe and predictable machine operation.
Part Details
| Part Number | 87270102 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Rotary Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Tandem Roller | BW 184 AD | 00810713, 00810715, 00817514 |
| Refuse / Landfill Compactor | BC 972 RB | 00817408 |
| Tandem Roller | BW 144 AD-2 | 00817477 |
| Tandem Roller | BW 154 AD-2 | 00817491 |
| Tandem Roller | BW 170 AD | 00817498 |
| Tandem Roller | BW 174 AC | 00817499 |
| Tandem Roller | BW 174 AC AM | 00817500 |
| Tandem Roller | BW 174 AD | 00817501 |
| Tandem Roller | BW 174 AD AM | 00817502 |
| Tandem Roller | BW 180 AD | 00817513 |
| Recycler / Stabilizer | MPH 121 | 00817587 |
| Refuse / Landfill Compactor | BC 1172 RB | 00817827 |
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.
