The Multiquip 42628 is a genuine OEM Adapter 14T SAE 5 Pump Rexroth-Hatz designed for HTX6H and STX6H hydrostatic ride-on power trowels. As a direct Multiquip OEM component, part 42628 is manufactured to the exact tolerances required for proper coupling between the Rexroth hydraulic pump and the Hatz diesel engine on these machines. Verified fitment covers the HTX6H heavy-duty hydrostatic trowel and the STX6H super-sized hydrostatic trowel — confirm your model before ordering to ensure a correct match.
Key Features
- Genuine OEM Hydraulic Pump Adapter: — Manufactured to Multiquip's exact specification for the Rexroth pump-to-Hatz engine interface, ensuring correct spline engagement and torque transfer.
- 14-Tooth SAE 5 Spline Interface: — The 14T SAE 5 spline pattern matches the input shaft of the Rexroth hydraulic pump precisely, allowing direct installation without shaft modification.
- Confirmed Fitment for HTX6H and STX6H: — Engineered specifically for Multiquip's heavy-duty and super-sized hydrostatic ride-on trowel series powered by the Hatz diesel engine.
- Hydraulic Drive Integrity: — A correctly fitted adapter maintains full hydraulic pressure and blade-pitch response; a worn or mismatched adapter can introduce slop at the pump shaft, degrading trowel control and surface finish quality.
- Critical Powertrain Safety Component: — This adapter sits at the engine-to-pump junction; a failed or incorrect adapter under load can result in sudden loss of hydraulic drive, making accurate fitment essential for operator safety.
The Adapter 14T SAE 5 Pump Rexroth-Hatz serves as the mechanical coupling between the Hatz diesel engine output and the Rexroth hydraulic pump that powers the trowel's blade pitch and drive functions. It transmits rotational force from the engine into the hydraulic system, and its spline count and SAE flange size must match both mating components exactly to prevent slippage, vibration, or premature pump wear. When this adapter wears, cracks, or is replaced with an incorrect substitute, hydraulic pressure becomes inconsistent, leading to erratic blade response and potential drivetrain damage on the trowel.
Part Details
| Part Number | 42628 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Adapter 14T SAE 5 Pump Rexroth-Hatz |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX6H |
| Whiteman Ride-On Power Trowels | STX6H |
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.
