Multiquip 21095 Straight Fitting 4MJ-4MO

The Multiquip 21095 Straight Fitting 4MJ-4MO is a genuine OEM hydraulic fitting designed for Whiteman hydrostatic ride-on power trowels including the HTX44, STX55, LD6, LD60, MD80, and MD105 series. As a direct OEM replacement, 21095 delivers the exact thread specification and sealing geometry required by the original hydraulic circuit design. DHS Equipment sources this part directly through authorized Multiquip distribution channels, so you receive the same component installed at the factory. Verify your model against the fitment list to confirm compatibility before ordering.

Key Features

• OEM-Specified Thread Form — Manufactured to the exact 4MJ-4MO male JIC-to-male ORB thread specification, ensuring a leak-free hydraulic connection without re-tapping or adapting ports.
• Direct Hydraulic Line Replacement — Connects inline with existing hydraulic hose and manifold ports on the trowel's hydrostatic drive circuit, reinstalling the same way the original did.
• Broad Whiteman Trowel Compatibility — Confirmed fitment across HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, STXD6i, HTXD6i, LD6, LD6SL, LD60, MD80, and MD105 models.
• Hydraulic System Integrity — A correctly seated fitting maintains rated system pressure across the blade-pitch and drive circuits; a damaged or wrong-spec fitting causes pressure bleed-off, erratic blade response, and potential hydraulic fluid loss.
• Leak-Free Sealing Under Operating Pressure — The ORB male end creates a positive face seal at the port, eliminating the thread-sealant dependency of older NPT-style fittings and reducing the risk of seepage under sustained hydraulic load.

A straight hydraulic fitting routes pressurized fluid between two fixed-position hydraulic components — in this case within the hydrostatic blade-pitch and drive system of a ride-on power trowel. The 4MJ-4MO designation indicates a male JIC 37° flare on one end and a male O-ring boss (ORB) on the other, allowing a JIC hose assembly to terminate cleanly into an ORB-ported manifold or valve block. When this fitting cracks, corrodes, or strips, hydraulic pressure drops at that junction, causing sluggish or unresponsive blade-pitch adjustment and potential overheating of the hydraulic pump as it works to compensate for the loss.

For fitment questions or help confirming the correct part for your machine, contact the DHS Equipment team directly.

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.