The Multiquip 12147 is a genuine OEM Fitting QD 6MO Diagnostic PD361 designed for PRX hybrid power floats and Whiteman ride-on power trowel models including STX55Y6, STX55J6, HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, and related HHX-series units. As a direct Multiquip OEM component, part 12147 is manufactured to the exact specifications required by the hydraulic diagnostic circuit on these machines. Confirm your model number against the fitment list before ordering to ensure correct installation. DHS Equipment stocks genuine Multiquip parts so you can get the right component shipped without delay.
Key Features
- Genuine OEM Hydraulic Fitting: — Manufactured to Multiquip's exact port geometry and thread specification, ensuring a leak-free connection in the diagnostic circuit without the risk of mismatched tolerances.
- Quick-Disconnect Diagnostic Port: — The QD 6MO quick-disconnect design allows technicians to attach diagnostic gauges and test equipment to the hydraulic system quickly and cleanly.
- Broad Ride-On Trowel Fitment: — Compatible with PRX hybrid power floats and multiple Whiteman hydrostatic and hybrid ride-on trowel models, including STX55, HTX44, and HHX-series machines.
- Hydraulic System Integrity: — A correctly seated diagnostic fitting maintains circuit pressure isolation during servicing, preventing unintended pressure bleed-off that could interfere with trowel blade pitch or drive function.
- Direct Service Access: — Designed for tool-assisted installation into the PD361 diagnostic port, the 12147 seats securely and resists vibration loosening under the continuous operating loads typical of ride-on trowel work.
A QD diagnostic fitting is a quick-disconnect hydraulic port fitting used to access the hydraulic system for pressure testing, fault diagnosis, and fluid sampling without requiring full line disconnection. On ride-on power trowels like the STX55 and HTX44 series, the hydraulic system governs both blade pitch adjustment and machine drive — making accurate diagnostic access critical for identifying pressure faults, pump wear, or valve issues. A damaged or missing diagnostic fitting can prevent technicians from performing hydraulic system checks, leading to unresolved performance issues and extended service time.
Part Details
| Part Number | 12147 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Fitting QD 6MO Diagnostic PD361 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Ride-On Power Float | PRX |
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | HHXDF4-DF5 |
| Whiteman Ride-On Power Trowels | HHXD5-ES |
| Whiteman Ride-On Power Trowels | HHXG5 |
| Whiteman Ride-On Power Trowels | HHXD5 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
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.
