The Multiquip 21997 Straight Fitting -10FJ x -10MJ is a genuine OEM hydraulic fitting designed for Whiteman ride-on power trowels including the HTX44Y4, HTX44Y5, HTX44K4, STXD6i, and HTXD6i. As a direct factory replacement, this fitting delivers the exact thread configuration and port sizing required to maintain a leak-free hydraulic connection in demanding finishing applications. Sourced directly from Multiquip, part number 21997 ensures you're installing a component built to the same standard as the original. DHS Equipment stocks genuine Multiquip OEM parts so you can get your trowel back to work without guesswork.
Key Features
- Genuine OEM Thread Specification — Manufactured to the exact -10FJ female JIC and -10MJ male JIC thread dimensions required by Multiquip's hydraulic system design, ensuring a proper metal-to-metal seal without improvisation.
- Straight-Through Flow Path — The inline configuration maintains full hydraulic flow without directional restriction, supporting consistent blade pitch control and drive response on hydrostatic trowel systems.
- Confirmed Fitment for HTX and STX Series — Verified for use on HTX44Y4, HTX44Y5, HTX44K4, STXD6i, and HTXD6i Whiteman ride-on power trowels.
- Leak-Free Hydraulic Integrity — A correctly seated fitting prevents hydraulic fluid loss that would otherwise cause sluggish blade response, pressure drop, or loss of drive control mid-pour.
- Direct-Swap Installation — Matches the original port location and fitting size, threading in to the existing hydraulic line without adapters or re-routing.
A straight hydraulic fitting like the Multiquip 21997 serves as the connection point between hydraulic hoses and components within the trowel's hydrostatic drive and blade pitch control circuits. On ride-on trowels, maintaining tight, properly rated fittings is critical — even a minor hydraulic leak can rob the system of the pressure needed to steer the machine or adjust finishing blade angle consistently. When a fitting fails, corrodes, or strips at the threads, the result is fluid loss, erratic blade behavior, and potential damage to downstream hydraulic components. Replacing it promptly with the correct OEM part restores full system pressure and keeps the finishing pass on schedule.
Part Details
| Part Number | 21997 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Straight Fitting -10FJ x -10MJ |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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 | HTX44K4 |
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.
