Multiquip 21364 Tee 6MJ Bulkhead Run Fitting

The Multiquip 21364 Tee 6MJ Bulkhead Run Fitting is a genuine OEM fitting designed for the STX55J6 and STX55Y6 hydrostatic ride-on power trowels. As a direct OEM replacement, this fitting meets the exact specifications Multiquip built into the hydraulic system of these machines, ensuring correct flow routing and a secure, leak-free connection. It is verified to fit STX55J6 and STX55Y6 units without modification. Sourced directly through authorized channels, this part carries the assurance of genuine Multiquip quality.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's exact thread and port specifications, ensuring correct sealing pressure and dimensional compatibility within the hydraulic circuit.
• Direct Drop-In Replacement — Threads and body dimensions match the original fitting, allowing straightforward installation into the existing bulkhead mount on STX55-series trowels.
• Confirmed Fitment — Verified for STX55J6 and STX55Y6 hydrostatic ride-on trowels; always cross-reference your model code before ordering.
• Leak-Free Hydraulic Routing — A properly seated tee fitting maintains consistent hydraulic pressure split across the circuit; a failed or cross-threaded fitting can cause pressure loss and erratic blade or drive response.
• Fuel and Fluid System Safety — Correct fitting integrity prevents uncontrolled fluid discharge in the hydraulic circuit, protecting operator safety and machine components.

A tee bulkhead fitting splits a single hydraulic or fluid line into two separate flow paths while passing through a panel or housing wall, with the bulkhead shoulder and locknut securing it firmly in place. On hydrostatic ride-on trowels like the STX55 series, these fittings are critical junction points in the hydraulic circuit that controls both blade pitch and machine drive. When a tee fitting cracks, cross-threads, or its sealing surfaces deteriorate, hydraulic fluid can leak at the junction, causing pressure drop, inconsistent blade response, and potential damage to downstream hydraulic components.

For assistance confirming this part fits your machine, contact the DHS Equipment team with your model and serial number before ordering.

Part Details

Compatibility & Fitment

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.