The Multiquip 66401 Hydraulic Hose 3/8x420mm is a genuine OEM component designed for the RW1404MR roller (S/N 326075 and up). Sourced directly from Multiquip, this hose is built to the exact diameter and length specification required for correct hydraulic system operation on compatible RAMMAX walk-behind roller equipment. If your existing hose is leaking, cracked, or showing wear, replacing it with the correct 66401 ensures the hydraulic circuit is restored to proper working condition.
Key Features
- OEM-Grade Hydraulic Rating — Built to the pressure and flow specifications of the original hose, ensuring no loss of hydraulic performance in the circuit.
- Correct 3/8" Bore x 420mm Length — Matches the exact internal diameter and cut length of the factory-installed hose for a direct, connection-ready swap at the original routing points.
- Verified Fitment for RW1404MR (S/N 326075 and up) — Confirmed for the RAMMAX walk-behind roller with the specified serial number break, keeping your parts selection accurate.
- Hydraulic Integrity Restored — A deteriorated or leaking hose causes pressure drop and sluggish or unresponsive roller drive; this replacement brings the hydraulic circuit back to full operating pressure.
- Fuel and Fluid System Safety — A properly rated hydraulic hose prevents uncontrolled fluid loss and potential fire or slip hazards on the worksite, making correct hose specification genuinely safety-critical.
A hydraulic hose carries pressurized fluid between the pump, control valves, and drive motors that propel and operate the roller. On a walk-behind roller like the RW1404MR, the hydraulic system controls both the vibratory mechanism and the drive function, so a failing hose can result in loss of compaction force, erratic machine movement, or a complete shutdown of roller operation. Replacing a worn or damaged hose promptly with the correct OEM specification — the right bore size and length — keeps the hydraulic circuit sealed and operating at the pressure the system was designed to deliver.
Need help confirming this is the right part for your machine? Contact the DHS Equipment parts team with your model and serial number and we'll verify fitment before you order.
Part Details
| Part Number | 66401 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hydraulic Hose 3/8x420mm |
Compatibility & Fitment
| Name | Model |
|---|---|
| Rollers | RW1404MR S/N 326075 and up |
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.
