The Multiquip 22859 Hydraulic Radiator Assembly is a genuine OEM component designed for STXD6i and HTXD6i hydrostatic ride-on power trowels. As a direct OEM replacement, part 22859 is built to the same specifications as the original unit, ensuring a drop-in fit within the machine's hydraulic cooling circuit. DHS Equipment sources this assembly directly through authorized Multiquip channels, so you can order with confidence knowing you're getting the correct part for your machine. This assembly is the right call when your trowel's hydraulic system is running hot or showing signs of cooling degradation.
Key Features
- Genuine OEM Cooling Performance — Engineered to maintain precise hydraulic fluid temperature thresholds, matching the original thermal management design of the STXD6i and HTXD6i.
- Direct-Fit Assembly — Mounts to the existing bracket and hydraulic line connections on compatible trowels without reworking fittings or mounting points.
- Confirmed Fitment — Verified for STXD6i and HTXD6i hydrostatic ride-on power trowels; use part number 22859 to confirm compatibility before ordering.
- Protects Hydraulic System Longevity — A functioning hydraulic radiator keeps fluid viscosity stable under load; a failed or clogged unit accelerates pump and motor wear across the entire hydraulic circuit.
- Operational Safety Compliance — Overheating hydraulic fluid can lead to pressure spikes and seal failures; replacing a degraded radiator assembly restores safe operating temperatures and protects downstream components.
The hydraulic radiator assembly is responsible for dissipating heat from the hydraulic fluid as it circulates through the trowel's drive and blade-pitch control systems. On hydrostatic ride-on trowels like the STXD6i and HTXD6i, the hydraulic system works under sustained load, generating significant heat that must be managed to keep fluid viscosity and system pressure within safe operating ranges. When this assembly becomes clogged, damaged, or begins leaking, hydraulic fluid temperatures climb rapidly, leading to reduced responsiveness, accelerated wear on pumps and motors, and potential system shutdown on the jobsite.
For questions about part number 22859 or fitment on your specific machine, contact the DHS Equipment parts team for assistance.
Part Details
| Part Number | 22859 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hydraulic Radiator Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STXD6i |
| Whiteman Ride-On Power Trowels | HTXD6i |
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.
