Multiquip 21267 Pump Control Bearing Block Assembly Left Hand

The Multiquip 21267 is a genuine OEM Pump Control Bearing Block Assembly Left Hand designed for Whiteman hydrostatic ride-on power trowel models including the HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, STXD6i, HTXD6i, and HTXG6DF. As a direct Multiquip OEM part, 21267 is manufactured to the same specifications as the original component installed at the factory, ensuring a correct fit within the hydraulic pump control linkage. This assembly is a critical structural and functional component for the left-hand pump control circuit of the HTX and STX series trowel platforms. Sourcing the correct OEM 21267 is essential on hydrostatic trowels where pump control geometry directly affects machine drive response.

Key Features

• Genuine OEM Bearing Precision — Manufactured to Multiquip's original tolerances, ensuring the bearing block maintains accurate alignment within the hydraulic pump control linkage without play or slop.
• Left-Hand Specific Assembly — This is the left-hand designated assembly; confirm operator orientation before ordering to ensure the correct side is replaced.
• Direct-Fit for HTX44 and STX55 Series — Confirmed fitment for HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, STXD6i, HTXD6i, and HTXG6DF hydrostatic ride-on trowels.
• Maintains Pump Control Response — A correctly installed bearing block keeps the pump control arm moving freely and on-axis, preserving smooth, predictable drive response during finishing passes.
• Hydraulic System Integrity — Wear or failure in this assembly can cause erratic steering, uneven pump engagement, or loss of directional control — making timely replacement critical on a ride-on trowel operating over fresh concrete.

The pump control bearing block assembly supports the mechanical linkage that connects the operator's drive handle input to the hydrostatic pump control arm on each side of the machine. On hydrostatic ride-on trowels like the HTX and STX series, this linkage translates handle movement into precise pump displacement changes, which directly controls forward, reverse, and turning motion. When the bearing block wears, becomes damaged, or develops play, the linkage loses accuracy — resulting in sluggish steering, unpredictable drive behavior, or uneven pump engagement that can compromise both finish quality and operator control.

Part Details

Compatibility & Fitment

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.