The Multiquip 43461 LH Heat Exchanger Assembly is a genuine OEM component designed for the STXDF series super-sized hydrostatic ride-on power trowel. As a direct OEM replacement, 43461 meets the original engineering specifications for the STXDF dual-fuel hydrostatic trowel platform, ensuring proper thermal management of the hydraulic system. Sourced directly through authorized Multiquip supply channels, this assembly installs in the left-hand heat exchanger position and is confirmed for STXDF fitment.
Key Features
- Genuine OEM Heat Transfer Integrity — Built to the original specification for internal flow path geometry and core capacity, so hydraulic fluid temperatures stay within the design operating range of the STXDF.
- Left-Hand Position Specific — Engineered for the LH mounting location on the STXDF; the assembly aligns directly with the existing brackets, porting, and hardware without adaptation.
- STXDF Series Fitment Confirmed — Verified for the STXDF super-sized hydrostatic ride-on trowel, including the dual-fuel (propane and gasoline) configuration.
- Hydraulic System Protection — A functioning heat exchanger keeps hydraulic fluid from overheating during extended finishing runs; a degraded or leaking unit risks overheating the drive and blade-pitch circuits, leading to sluggish response or system damage.
- Critical Fluid System Component — On a hydrostatic trowel, hydraulic integrity is directly tied to operator control and blade behavior; using a correctly rated OEM assembly maintains safe, predictable machine response.
A heat exchanger in a hydrostatic ride-on trowel serves as the cooling unit for the hydraulic fluid that powers both the drive system and the blade-pitch control circuits. As the machine works, the hydraulic system generates heat, and the heat exchanger transfers that heat away from the fluid before it recirculates through the pumps and motors. When the heat exchanger is cracked, clogged, or leaking, fluid temperatures climb rapidly, causing the hydraulic system to lose efficiency, shortening seal and pump life, and potentially making the machine difficult to control safely.
For help confirming this part fits your specific unit, contact the DHS Equipment team with your model and serial number before ordering.
Part Details
| Part Number | 43461 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | LH Heat Exchanger Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STXDF |
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.
