The Multiquip 505423850 Dead Man Arm Collar DNO is a genuine OEM component designed for the MRV-14 walk-behind vibratory roller. Sourced directly from Multiquip, this collar is an exact match for the original part and installs without any adaptation. If you are servicing or restoring the operator presence control system on your MRV-14, this is the correct OEM replacement to spec.
Key Features
- Genuine OEM Construction — Manufactured to the same material and dimensional tolerances as the original collar, ensuring the dead man arm assembly seats and pivots correctly.
- Direct-Fit for MRV-14 — Engineered specifically for the MRV-14 walk-behind roller; drops into the existing assembly without rework or shimming.
- Operator Control System Integrity — A correctly fitted collar keeps the dead man arm operating with the proper range of motion and engagement feel, maintaining the responsiveness the operator depends on.
- Safety-Critical Component — The dead man arm is a core operator presence control; using a correctly dimensioned OEM collar ensures the mechanism engages and releases as designed, which is essential for safe machine operation.
- Verified Multiquip OEM Sourcing — Part 505423850 is a genuine Multiquip part, not a generic substitute, giving you confidence that the fitment and function match the original specification.
The dead man arm, also called an operator presence control, is a spring-loaded handle or lever that must be held by the operator for the machine to remain in motion. The collar on the dead man arm is a structural interface component that allows the arm to pivot, return, and engage the control mechanism smoothly and consistently. When this collar wears, cracks, or becomes damaged, the arm may bind, fail to return to the disengaged position, or lose the firm mechanical connection the control system requires — any of which can compromise both machine control and operator safety.
For questions about fitment or to confirm this is the correct part for your MRV-14, contact the DHS Equipment team before ordering.
Part Details
| Part Number | 505423850 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Dead Man Arm Collar DNO |
Compatibility & Fitment
| Name | Model |
|---|---|
| MRV-14 | MRV-14 |
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.
