The Multiquip 21336 is a genuine OEM Hose Assembly 3/8 x 22 TR Ends designed for the STX55J6 and STX55Y6 super-sized hydrostatic ride-on power trowels. As a direct Multiquip OEM part, 21336 is built to the exact specifications required to maintain proper hydraulic circuit integrity on these machines. This part is noted as obsolete (OBS), so availability may be limited — if you need the Multiquip 21336, securing it promptly is strongly advised. Confirm your model code against STX55J6 or STX55Y6 before ordering to ensure correct fitment.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's exact hose routing and end-fitting specifications, ensuring correct pressure ratings and sealing performance for the hydraulic system on STX55 series trowels.
- Threaded TR End Fittings — The 3/8 x 22 TR end configuration connects directly to the designated hydraulic ports without adapters or reworking of the existing fittings.
- Confirmed STX55 Series Fitment — Verified for the STX55J6 and STX55Y6 super-sized hydrostatic ride-on trowels; check your model code before ordering.
- Hydraulic Integrity Maintained — A correctly functioning hose assembly keeps hydraulic fluid routed and pressurized as designed, supporting consistent blade pitch control and drive response across the trowel's operating range.
- Obsolete Part — Limited Stock — Listed as OBS by Multiquip, meaning this part is no longer in regular production; purchasing while stock is available avoids extended machine downtime waiting on sourcing alternatives.
A hydraulic hose assembly routes pressurized fluid between components in the trowel's hydrostatic drive and blade pitch control circuits. On super-sized hydrostatic machines like the STX55 series, these hoses carry the hydraulic pressure that allows the operator to adjust blade angles and propel the machine across the slab. When a hose assembly degrades, develops a leak, or fails, hydraulic pressure drops — resulting in sluggish or unresponsive blade pitch adjustment, loss of drive performance, and potential fluid loss that can damage other hydraulic components. Replacing a worn or leaking hose assembly with the correct OEM part restores the circuit to its intended operating condition.
Part Details
| Part Number | 21336 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hose Assembly 3/8 x 22 TR Ends |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STX55J6 |
| 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.
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