The Multiquip 3-66591 is a genuine OEM Hydraulic Hose AC40P4B designed for the AC40P4B. Sourced directly from Multiquip, this hose is manufactured to the exact specifications of the original component, ensuring a correct, trouble-free installation. If you are servicing or restoring hydraulic function on your AC40P4B, this is the factory-correct part to use.
Key Features
- Genuine OEM Construction — Built to the precise pressure ratings and hose dimensions specified for the original hydraulic circuit, not a generic substitute.
- Direct-Fit Replacement — Engineered to connect to the existing fittings and routing of the AC40P4B hydraulic system without modification to line ends or brackets.
- AC40P4B Compatibility — Confirmed fitment for the Multiquip AC40P4B, eliminating guesswork when ordering replacement hydraulic components.
- Hydraulic Integrity Maintained — A correctly rated hose sustains the operating pressure of the system; an undersized or degraded hose risks pressure loss, leaks, or full hydraulic failure.
- Pressure and Flex Rated — OEM hose construction accounts for the specific bend radius, temperature range, and fluid compatibility required in this hydraulic application.
A hydraulic hose carries pressurized fluid between components in a hydraulic system — in this case, within the AC40P4B. It allows the system to transmit force to drive functions such as movement, blade adjustment, or other hydraulically actuated mechanisms depending on the machine. When a hose cracks, swells, or develops a leak, hydraulic pressure drops and the affected function becomes sluggish or stops working entirely. Replacing a worn hose promptly with the correct OEM part restores full system pressure and prevents fluid loss that can damage other components downstream.
For fitment questions or help confirming this part is right for your machine, contact the DHS Equipment team before ordering.
Part Details
| Part Number | 3-66591 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hydraulic Hose AC40P4B |
Compatibility & Fitment
| Name | Model |
|---|---|
| AC40P4B | AC40P4B |
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.
