Multiquip 20532 Spider Plate Keyed Tapered 6-Blade Ductile

The Multiquip 20532 Spider Plate Keyed Tapered 6-Blade Ductile is a genuine OEM component designed for STX55J6 and STX55Y6 super-sized hydrostatic ride-on power trowels. As a direct Multiquip OEM part, the part is manufactured to the same specifications as the original, ensuring a correct, trouble-free installation on your machine. This spider plate is purpose-built for the STX55 series, so you can be confident it seats and keys correctly without guesswork. Keep a spare on hand to stay ahead of scheduled blade maintenance and avoid unplanned work stoppages on the slab.

Key Features

• Ductile Iron Construction — Ductile iron delivers the toughness and impact resistance required to handle the cyclic loading and torque demands of a ride-on trowel spider plate, outlasting brittle cast alternatives.
• Keyed and Tapered Interface — The keyed, tapered design locks the spider plate securely to the rotor shaft, maintaining precise blade-pitch alignment during operation and preventing rotational slip under load.
• 6-Blade Configuration — Engineered for a 6-blade trowel rotor layout, matching the blade count and arm spacing of the STX55 series for balanced, uniform float and finish passes.
• Genuine OEM Part — Sourced directly from Multiquip, part this part meets the original engineering tolerances for the STX55 hydrostatic trowel platform — no substitutions or dimensional compromises.
• Confirmed STX55 Series Fitment — Verified for STX55J6 and STX55Y6 models, covering both the John Deere and Yanmar diesel-powered variants of the super-sized hydrostatic series.

The spider plate is the central hub component of a ride-on trowel's rotor assembly. It connects the rotor shaft to the trowel arms and transmits the pitch-adjustment inputs that control blade angle during floating and finishing. The keyed, tapered seat ensures the plate transfers torque cleanly and holds blade geometry consistent across the full rotor sweep. When a spider plate wears, cracks, or loses its seating integrity, blade pitch becomes uneven, finish quality deteriorates, and the rotor assembly can develop dangerous runout — making timely replacement essential to both surface quality and operator safety.

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.