Multiquip 21103 Hose Assembly .63 ID x 15.0 Long 90 One End R17
Multiquip

Multiquip 21103 Hose Assembly .63 ID x 15.0 Long 90 One End R17

$122.69
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SKU:
21103-Multiquip
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The Multiquip 21103 is a genuine OEM Hose Assembly.63 ID x 15.0 Long 90 One End R17 designed for the STX55J6 and STX55Y6 super-sized hydrostatic ride-on power trowels. As a direct OEM replacement, this hose assembly matches the original factory routing, end fitting configuration, and dimensional specifications for a straight-swap installation. Sourced directly through authorized Multiquip distribution, part 21103 ensures your trowel's hydraulic system returns to proper operating condition without adaptation or guesswork. Confirm your model code against STX55J6 or STX55Y6 before ordering to ensure accurate fitment.

Key Features

  • Genuine OEM Construction — Built to the same hose material grade, inner diameter tolerance, and end-fitting specification as the original, ensuring consistent flow and pressure integrity in the hydraulic circuit.
  • 90-Degree End Fitting on One End — The pre-formed 90-degree termination on one end matches the original routing geometry, allowing the hose to seat correctly against the hydraulic port without bending stress.
  • Verified STX55 Series Fitment — Confirmed for STX55J6 (John Deere diesel) and STX55Y6 (Yanmar diesel) super-sized hydrostatic ride-on trowels; always cross-reference your model code before ordering.
  • Maintains Hydraulic System Integrity — A correctly fitted hose assembly preserves blade pitch control response and drive hydraulics; a cracked, worn, or mismatched hose can cause pressure loss, erratic blade adjustment, or hydraulic fluid leaks.
  • Authorized Multiquip Part — Part number 21103 is supplied through the official Multiquip parts network, so you receive a traceable, authenticated component backed by manufacturer documentation.

A hydraulic hose assembly routes pressurized fluid between components in the trowel's hydrostatic system, enabling precise control of blade pitch and machine drive. On super-sized hydrostatic trowels like the STX55 series, the hydraulic circuit handles significant operating loads, and the hose must maintain a leak-free seal under continuous pressure cycling. When a hose deteriorates — through abrasion, heat fatigue, or fitting wear — hydraulic pressure drops, blade pitch control becomes inconsistent, and fluid loss can lead to broader system damage if left unaddressed.

Part Details

Part Number21103
BrandMultiquip
Part TypeGenuine OEM
DescriptionHose Assembly .63 ID x 15.0 Long 90 One End R17

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.