The Multiquip 551440390 is a genuine OEM Nylon Tube 6.3 400L designed for the MRX-440P walk-behind roller. Sourced directly from Multiquip, this replacement tube matches the original component specification, ensuring a correct, no-hassle installation. If you operate an MRX-440P and need to restore the fluid or fuel routing to proper working order, 551440390 is the part to reach for.
Key Features
- Genuine OEM Construction — Manufactured to the same material grade and dimensional tolerances as the original nylon tube, preserving correct flow capacity and bend characteristics under operating conditions.
- Direct-Line Replacement — Matches the original routing length of 400L and 6.3mm diameter, connecting to existing fittings and brackets without rework or adapters.
- Confirmed MRX-440P Fitment — Verified for use on the Multiquip MRX-440P walk-behind roller, so you can order with confidence before the machine ever comes off the job.
- Maintains Fluid Integrity — A cracked or kinked nylon tube can cause leaks, pressure loss, or fluid contamination; replacing it promptly with this part keeps fluid delivery consistent and the roller operating as intended.
- Fuel and Chemical Resistance — Nylon construction resists degradation from fuels, hydraulic fluids, and moisture exposure common in outdoor compaction applications.
A nylon tube in a walk-behind roller serves as a conduit for fuel, hydraulic fluid, or lubricant between system components, keeping flow continuous and contained. When a tube cracks, splits, or becomes brittle from heat or age, it can cause fluid loss, erratic machine behavior, or contamination of surrounding components. Replacing a worn tube promptly with a correctly sized OEM part restores system integrity and prevents secondary damage to pumps, valves, or engine components downstream.
Part Details
| Part Number | 551440390 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Nylon Tube 6.3 400L |
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.
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