The Multiquip 12159 Tee Fitting 6MJ 6MJ 6MO Run is a genuine OEM hydraulic fitting designed for Whiteman hydrostatic ride-on power trowels including the HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, STXD6i, and HTXD6i. As a direct OEM replacement, part 12159 meets the original design intent and connects into the hydraulic circuit without adaptation. Sourced directly through authorized Multiquip distribution, this fitting ensures your machine is restored with a component built to the same standard as the original. DHS Equipment stocks genuine Multiquip OEM parts to keep your trowel operating as intended.
Key Features
- Genuine OEM Hydraulic Integrity — Manufactured to original Multiquip specifications, ensuring correct thread engagement and pressure-rated performance in the hydraulic circuit.
- Run Tee Configuration — The 6MJ 6MJ 6MO Run tee orientation allows straight-through flow with a branch port, matching the original hydraulic routing of the machine.
- Direct Replacement Fit — Installs into the existing hydraulic line connections with no thread modification, matching the port sizing and thread type of the original fitting.
- Broad HTX and STX Series Compatibility — Confirmed fitment across HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, STXD6i, and HTXD6i ride-on trowels.
- Hydraulic System Reliability — A correctly seated tee fitting maintains consistent hydraulic pressure to the trowel's drive and blade control systems; a damaged or leaking fitting can cause sluggish response or loss of blade pitch control.
- Leak Prevention at the Connection Point — Proper thread form and sealing surface on this OEM fitting help prevent hydraulic fluid weeping that can compromise system pressure over time.
A tee fitting in a hydraulic system splits or combines flow at a junction point within the circuit, allowing fluid to be routed from one supply line to two separate destinations — or from two lines into one. On hydrostatic ride-on trowels like the HTX and STX series, hydraulic fittings like the 12159 are critical links between the pump, motors, and control valves that govern blade pitch and machine travel. When a fitting cracks, cross-threads, or develops a leak, hydraulic pressure drops and the operator may notice loss of drive response or inconsistent blade adjustment — making prompt replacement with the correct OEM part essential to restoring full machine function.
Part Details
| Part Number | 12159 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Tee Fitting 6MJ 6MJ 6MO Run |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44K4 |
| 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 | STXD6i |
| Whiteman Ride-On Power Trowels | HTXD6i |
| Whiteman Ride-On Power Trowels | STX55Y6 |
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.
