Multiquip 42280-SK Motor Mount Block Assembly Kit 2 DOF Pivot

The Multiquip 42280-SK Motor Mount Block Assembly Kit 2 DOF Pivot is a genuine OEM replacement designed for STXDF, LD60, LD6, LD6SL, and PRX series ride-on power trowels. This assembly ships as a complete kit, giving you everything needed to restore the two-degree-of-freedom pivot mount on the motor block to original specification. Sourced directly from Multiquip, the 42280-SK ensures a direct, exact-match installation on the machines it was engineered for. Keep this part on hand as part of your planned maintenance program to avoid unexpected trowel downtime mid-pour.

Key Features

• Genuine OEM Pivot Isolation: — Engineered to the same vibration-damping and load-bearing tolerances as the original mount, maintaining correct motor alignment under continuous blade torque loads.
• Complete Kit Format: — Supplied as a full assembly kit so all mating hardware and mount components are replaced together, eliminating mismatched wear between old and new pieces.
• Two-Degree-of-Freedom Pivot Design: — The 2 DOF pivot geometry allows controlled motor movement in two planes, absorbing operational stress without transferring it to the frame or drive components.
• Broad Ride-On Trowel Compatibility: — Fits STXDF, LD60, LD6, LD6SL, and PRX ride-on power trowel models, covering both hydrostatic and hybrid power float platforms in the Multiquip lineup.
• Blade Control Integrity: — A worn or failed motor mount causes blade pitch instability and uneven finishing patterns; replacing it with 42280-SK restores consistent, controllable blade response across the trowel deck.

The motor mount block on a ride-on power trowel is responsible for securing the motor to the machine frame while allowing a controlled degree of movement through its pivot design. On 2 DOF systems, the mount absorbs torque and vibration forces in two planes, protecting surrounding drivetrain and hydraulic components from stress fractures and premature wear. When this mount degrades — through cracking, compression set, or pivot wear — operators will notice increased vibration through the frame, inconsistent blade pitch response, and accelerated wear on connected hardware. Replacing it promptly with a properly rated OEM assembly like the 42280-SK is essential to maintaining finish quality and protecting the broader trowel drivetrain.

For fitment questions or to confirm compatibility with your specific serial number, contact the DHS Equipment parts team directly.

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.