The Multiquip 551010250 Back Buzzer Switch is a genuine OEM component designed for the MRX-440P walk-behind roller. Sourced directly from Multiquip, this part meets the exact specifications of the original switch installed at the factory, ensuring correct operation of the reverse alarm system on your machine. If you're working on an MRX-440P and need a direct, verified replacement, part 551010250 is the correct unit for this application.
Key Features
- Genuine OEM Electrical Spec — Matches the original switch's output characteristics exactly, so the reverse alarm circuit activates and de-activates as designed without signal mismatch or erratic behavior.
- Direct-Fit Installation — Engineered to the same connector type, mounting footprint, and switching logic as the original, making the swap straightforward with no adaptation needed on the MRX-440P wiring harness.
- Confirmed MRX-440P Compatibility — Verified fitment for the MRX-440P RAMMAX walk-behind roller; check your model code before ordering to ensure this is the correct application.
- Reverse Alarm Integrity — A functioning back buzzer switch is essential for consistent, audible reverse warning; a faulty switch can cause the alarm to fail silently or sound continuously, disrupting safe machine operation.
- Operational Safety Relevance — The reverse warning system is a critical safety feature on roller equipment operating near workers and obstacles; replacing a worn or failed switch restores the alarm to full working order.
The back buzzer switch controls the activation of the machine's reverse audible warning alarm. When the operator selects reverse, this switch completes the circuit that triggers the buzzer, alerting nearby workers to the change in machine direction. A failed or worn switch can cause the alarm to stop sounding entirely or activate unpredictably, compromising awareness on the worksite and potentially violating safety requirements for powered roller equipment.
Part Details
| Part Number | 551010250 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Back Buzzer Switch |
Compatibility & Fitment
| Name | Model |
|---|---|
| MRX-440P | MRX-440P |
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.
