The Bomag 420065120 Selector Switch is a genuine OEM component designed for Bomag BM 2000/50, BM 1300/30-T3, and BM 1200/30-T3 cold milling machines. Sourced directly from Bomag, this selector switch meets the same specifications as the original part installed at the factory, ensuring a correct, confident fit. This switch installs directly into the machine's control circuit, restoring operator control functions to full working order. Contractors running cold milling operations can trust part number 420065120 to deliver the same electrical response and durability as the switch it replaces.
Key Features
- Genuine OEM Electrical Specification — matched to the correct switching ratings and circuit logic for Bomag cold milling machine control systems, so there is no guesswork on electrical compatibility
- Direct-Fit Replacement — engineered to the same mounting configuration and connector interface as the original switch, allowing a straightforward swap without reworking the harness
- Broad Cold Milling Coverage — fits the BM 2000/50, BM 1300/30-T3, and BM 1200/30-T3 cold milling machines, covering multiple machine sizes in the Bomag BM milling lineup
- Restores Full Operator Control — a faulty selector switch can lock out critical machine functions or cause erratic operation; replacing it with part number 420065120 returns crisp, predictable switching response
- Electrical Safety Assurance — as a control-circuit component, using a correctly rated OEM switch helps prevent unintended electrical faults that could affect machine operation or operator safety
A selector switch is an operator-interface component mounted in the machine's control panel, allowing the operator to choose between operating modes, circuits, or functions by rotating or toggling the switch to the desired position. In a cold milling machine like the BM series, the selector switch plays a direct role in routing control signals to the correct systems, making accurate, low-resistance switching essential for safe and predictable machine behavior. When a selector switch wears out or fails internally, it can cause intermittent loss of function, stuck modes, or unresponsive controls — all of which interrupt milling operations and can create unsafe conditions on the job.
Part Details
| Part Number | 420065120 |
|---|---|
| Brand | Bomag |
| Part Type | Genuine OEM |
| Description | Selector Switch |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| Cold Milling Machine | BM2000/50 | 00800629 |
| Cold Milling Machine | BM1300/30-T3 | 00818425 |
| Cold Milling Machine | BM1200/30-T3 | 00818427 |
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.
