The Multiquip 21266 is a genuine OEM Pump Control Right Hand Bearing Block Assembly designed for HTX44 and STX55 series hydrostatic ride-on power trowels. As a direct Multiquip OEM component, part 21266 is manufactured to the exact tolerances required by the hydraulic drive system on these machines. This assembly is confirmed to fit HTX44Y4, HTX44Y5, HTX44K4, HTX44K5, STX55J6, and STX55Y6 models, making it the correct replacement for right-hand pump control service on these units. Sourced directly through authorized supply channels, the Multiquip 21266 installs without modification and restores the hydraulic pump control circuit to proper operating condition.
Key Features
- Genuine OEM Construction — Precision-machined bearing block built to the exact dimensional and load specifications of the original hydraulic pump control assembly, ensuring correct bearing seating and housing alignment.
- Direct-Mount Replacement — Engineered to drop into the right-hand pump control position on HTX44 and STX55 hydrostatic trowels, aligning with existing mounting points and hydraulic interfaces.
- Broad HTX44 and STX55 Fitment — Verified compatibility across HTX44Y4, HTX44Y5, HTX44K4, HTX44K5, STX55J6, and STX55Y6 models.
- Hydraulic Pump Control Integrity — A correctly functioning bearing block maintains proper pump shaft support and control linkage alignment; wear or failure in this component causes imprecise blade speed control and uneven trowel pressure across the deck.
- Authorized OEM Sourcing — Supplied through DHS Equipment as an authorized Multiquip parts distributor, so the part number, configuration, and revision level match current production specifications.
The pump control bearing block assembly supports and locates the hydraulic pump control shaft on hydrostatic ride-on trowels, allowing the operator's inputs to translate accurately into hydraulic output and blade speed adjustment. On HTX and STX series machines, the right-hand bearing block carries lateral and radial loads on the pump control linkage, keeping the assembly in alignment under continuous vibration and operational stress. When this component wears or fails, the pump control becomes loose or inconsistent, leading to uneven trowel blade pressure, reduced finishing quality, and potential damage to the hydraulic pump itself.
For fitment questions or to confirm this part is correct for your specific machine serial range, contact the DHS Equipment team directly.
Part Details
| Part Number | 21266 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Pump Control Right Hand Bearing Block Assembly |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | STX55Y6 |
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.
Multiquip
Multiquip 21267 Pump Control Bearing Block Assembly Left Hand
