The Multiquip 551211850 is a genuine OEM Motor Flange MRX-440 PA designed for the MRX-440 walk-behind vibratory roller. Sourced directly from Multiquip, this flange is manufactured to the same specifications as the original component installed at the factory, ensuring a correct, trouble-free installation. This part is confirmed to fit the MRX-440, so you can order with confidence and get your machine back in service without guesswork.
Key Features
- Genuine OEM Construction — Manufactured to the exact material and dimensional tolerances of the original motor flange, ensuring the motor mounts securely and seats flush without distortion or flex.
- Direct-Fit Replacement — Engineered specifically for the MRX-440, this flange aligns to the existing bolt pattern and motor interface so installation proceeds cleanly using standard tooling.
- MRX-440 Compatibility — Confirmed fitment for the Multiquip MRX-440 walk-behind roller, eliminating compatibility risk when ordering.
- Structural Integrity Under Load — A properly functioning motor flange holds the drive motor in precise alignment during compaction cycles; a cracked or worn flange can allow motor movement that accelerates bearing wear and causes vibration imbalance.
- Authentic Multiquip Part — Supplied as a genuine Multiquip component, so the fit, finish, and material grade match what was originally specified for the MRX-440 drivetrain.
The motor flange is the structural interface between the hydraulic or electric drive motor and the roller's main housing or drum assembly. It holds the motor in fixed, precise alignment so that rotational force is transferred cleanly to the drum without vibration-induced misalignment. When a flange cracks, corrodes, or becomes warped, the motor can shift under load, leading to uneven compaction, accelerated seal and bearing wear, and potential motor damage. Replacing a compromised flange promptly with a correct OEM part restores drivetrain stability and protects the surrounding components from secondary wear.
Part Details
| Part Number | 551211850 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Motor Flange MRX-440 PA |
Compatibility & Fitment
| Name | Model |
|---|---|
| MRX-440 | MRX-440 |
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.
