The Multiquip 42648 is a genuine OEM Hydraulic Tier 4 Heat Exchanger designed for HTX6H, STXDF, PRX, STX6H, MD80, and MD105 ride-on power trowels. As a direct OEM replacement, part 42648 is built to the exact specifications required by these hydrostatic and hybrid trowel platforms, ensuring correct fitment with the hydraulic circuit as originally configured. Sourced directly through authorized Multiquip distribution channels, this component delivers the thermal management performance your machine depends on during continuous finishing operations. DHS Equipment stocks genuine Multiquip OEM parts so you can get the right part the first time and keep your trowel running at full capacity.
Key Features
- Genuine OEM Thermal Specification — Engineered to the exact heat dissipation capacity required by the hydraulic system in Tier 4-compliant ride-on trowels, maintaining fluid temperatures within the operating range the system was designed around.
- Direct Hydraulic Circuit Replacement — Mounts and connects to the existing hydraulic plumbing using the original port configuration, allowing straightforward installation without reworking fluid lines.
- Broad Ride-On Trowel Coverage — Compatible with HTX6H, STXDF, PRX, STX6H, MD80, and MD105 models, spanning Multiquip's hydrostatic and hybrid ride-on trowel families.
- Protects Hydraulic Components from Overheating — A functioning heat exchanger prevents excessive fluid temperatures that accelerate pump and motor wear, seal degradation, and loss of blade pitch control responsiveness.
- Tier 4 Emissions System Compatibility — Designed specifically for Tier 4 engine configurations where hydraulic thermal loads and cooling requirements differ from earlier-generation machines.
A hydraulic heat exchanger regulates the temperature of the hydraulic fluid circulating through a ride-on trowel's drive and blade pitch control systems. As the hydraulic system works to power blade rotation and propulsion, friction generates heat in the fluid — the heat exchanger transfers that heat away before it can degrade fluid viscosity, damage seals, or cause pump and motor wear. When this component fails or becomes restricted, fluid temperatures rise unchecked, leading to sluggish blade response, erratic drive behavior, and potentially costly damage to the hydraulic pump and control valves.
Part Details
| Part Number | 42648 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hydraulic Tier 4 Heat Exchanger |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX6H |
| Whiteman Ride-On Power Trowels | STXDF |
| Ride-On Power Float | PRX |
| Whiteman Ride-On Power Trowels | STX6H |
| Hydraulic Ride-On Power Trowels | MD80 |
| Hydraulic Ride-On Power Trowels | MD105 |
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.
