The Multiquip 12331 Straight Fitting 10Mo-6Fo is a genuine OEM hydraulic fitting designed for HTX44 and STX55 series hydrostatic ride-on trowels and the RX1575 walk-behind roller. As a factory-original component, 12331 meets the exact dimensional and pressure specifications of the original part, ensuring a secure, leak-free connection in the hydraulic circuit. This fitting is confirmed to fit HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, and RX1575 models, making it a straightforward service replacement for technicians working across multiple machine types.
Key Features
- Genuine OEM Hydraulic Integrity — Factory-original construction ensures correct thread form, sealing surface finish, and pressure rating for the hydraulic systems on these machines.
- Straight Male-to-Female Configuration — The 10Mo-6Fo straight design provides an in-line connection between hydraulic lines, installing directly in place of the original fitting without rework to hose ends or ports.
- Broad Model Coverage — Fits HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, and RX1575, consolidating one part number across both hydrostatic trowel and roller platforms.
- Leak-Free Hydraulic Circuit Performance — A correctly seated fitting maintains system pressure, keeping hydraulic blade pitch and drive response consistent; a worn or cross-threaded fitting causes pressure loss, erratic blade control, and fluid leaks.
A straight hydraulic fitting serves as the connection point between two hydraulic lines or a line and a component port, allowing pressurized fluid to pass through without directional change. On hydrostatic ride-on trowels and walk-behind rollers, these fittings are part of the circuits that control blade pitch adjustment and machine drive. When a fitting fails — through thread damage, seal degradation, or cracking — hydraulic fluid escapes, pressure drops, and the affected circuit loses responsiveness or stops functioning altogether. Replacing a damaged fitting promptly with a correct OEM part like the Multiquip 12331 restores circuit integrity and prevents further damage to hoses and connected components.
For questions about fitment or to confirm compatibility with your machine's serial number, contact the DHS Equipment team directly.
Part Details
| Part Number | 12331 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Straight Fitting 10Mo-6Fo |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Rollers | RX1575 |
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.
