The Multiquip 42749 Heat Exchanger Rotor Loop Left Hand Assembly is a genuine OEM component designed for the HTXG6DF hydrostatic ride-on power trowel. As a direct OEM replacement sourced from Multiquip, part 42749 is built to the exact specifications of the original unit, ensuring a correct fit within the machine's hydraulic cooling circuit. This assembly is the left-hand side of the rotor loop heat exchanger system and must be matched to the correct side during installation — confirm your left-hand requirement before ordering.
Key Features
- Genuine OEM Construction: — Manufactured to Multiquip's original design tolerances for the hydraulic rotor loop cooling circuit, ensuring correct flow characteristics and thermal transfer performance specific to the HTXG6DF platform.
- Left-Hand Side Specific: — This assembly is side-specific — confirm left-hand fitment before ordering, as the rotor loop system uses distinct left and right components that are not interchangeable.
- Direct HTXG6DF Fitment: — Engineered specifically for the Whiteman HTXG6DF heavy-duty hydrostatic ride-on power trowel, eliminating guesswork on compatibility.
- Protects Hydraulic System Integrity: — A functioning rotor loop heat exchanger keeps hydraulic fluid temperatures within operating range; a degraded or leaking unit can cause overheating, reduced trowel blade response, and unplanned shutdowns.
- Complete Assembly: — Supplied as a ready-to-install assembly (ASM), reducing bench time compared to sourcing individual sub-components.
The rotor loop heat exchanger is a critical component in the hydraulic system of a hydrostatic ride-on trowel. It regulates the temperature of hydraulic fluid circulating through the rotor drive circuit, dissipating excess heat generated during operation. When this component fails — whether through leaks, blockage, or physical damage — hydraulic fluid can overheat, leading to degraded trowel blade control, reduced drive response, and potential damage to downstream hydraulic components. The left-hand assembly (42749) forms one half of the rotor loop cooling system and must be replaced with the correct side-specific part to restore proper hydraulic thermal management.
Part Details
| Part Number | 42749 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Heat Exchanger Rotor Loop Left Hand Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTXG6DF |
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.
