The Multiquip 25511 Straight Fitting 4F5X-S is a genuine OEM straight fitting designed for a wide range of Multiquip concrete pumps, power buggies, mixers, and fireproofing pump units. As a direct OEM replacement, part 25511 is manufactured to the same specifications as the original component, ensuring a secure, leak-free connection in the fluid or hydraulic line where it is installed. This fitting is confirmed for use across multiple equipment families including LS-40, LS40TD, LS50TD, LS60TD, LS400, LS500, C30HDZ, WTB-16, WTB-16PD, MG30, MG30T2D, MG30M2D, MG30T3D, MG30M3D, and ST-70. Sourcing the correct OEM fitting by part number 25511 helps maintain the integrity of the fluid system and keeps your equipment running as intended.
Key Features
- Genuine OEM Construction — Manufactured to original Multiquip specifications, ensuring correct thread engagement, sealing surface geometry, and pressure rating for the fluid circuits on these machines.
- Direct-Fit Connection — The 4F5X-S straight fitting installs directly into the existing port without thread chasing or adapter workarounds, maintaining original line routing.
- Broad Equipment Compatibility — Fits Multiquip concrete pump models LS-40, LS40TD, LS50TD, LS60TD, LS400, LS500, C30HDZ, power buggies WTB-16 and WTB-16PD, fireproofing pumps MG30T2D, MG30M2D, MG30T3D, and MG30M3D, mixer MG30, and submersible pump ST-70.
- Leak Prevention — A correctly seated straight fitting maintains system pressure and prevents fluid loss that can lead to pump cavitation, hydraulic drift, or contamination of surrounding components.
- Fluid System Integrity — Using the OEM-specified fitting ensures the connection point meets the pressure and flow requirements of the original circuit design, protecting downstream components from stress caused by incorrect fittings.
A straight fitting is a threaded connector used to join two sections of fluid or hydraulic line in a direct, in-line configuration. On concrete pumps, power buggies, and similar equipment, these fittings appear throughout hydraulic circuits, lubrication lines, and water or slurry transfer systems, where they must maintain a reliable seal under continuous pressure and vibration. A worn, cracked, or incorrectly sized fitting will allow fluid to escape, reducing system pressure and potentially causing pump failure, hydraulic component damage, or unsafe operating conditions. Replacing a damaged fitting promptly with the correct OEM part restores the sealed system and prevents escalating damage to connected lines and valves.
For fitment questions or help confirming this part is correct for your serial number, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | EM25511 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Straight Fitting 4F5X-S |
Compatibility & Fitment
| Name | Model |
|---|---|
| Fireproofing Pumps | MG30T2D |
| Fireproofing Pumps | MG30M2D |
| Fireproofing Pumps | MG30T3D |
| Fireproofing Pumps | MG30M3D |
| Power Buggies | WTB-16 |
| Power Buggies | WTB-16PD |
| Mayco Pumps | C30HDZ |
| Mayco Pumps | LS-40 |
| Mayco Pumps | LS40TD |
| Mayco Pumps | LS50TD |
| Mayco Pumps | LS400 |
| Mayco Pumps | LS500 |
| Mayco Pumps | LS60TD |
| Submersible Pumps | ST-70 |
| Fireproofing Pumps | MG30 |
| Mayco Pumps | LS40D |
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.
