Multiquip 11980 Spider Assembly 6 Blade L.S. Splined

The Multiquip 11980 Spider Assembly 6 Blade L.S. Splined is a genuine OEM component designed for Whiteman hydrostatic ride-on power trowels including the HTXD6i, STXD6i, STX55Y6, STX55J6, HTX44Y5, and HTX44Y4. As a direct factory replacement, this assembly maintains the precise blade pitch geometry and splined interface that these professional finishing machines depend on. Sourced directly from Multiquip, part 11980 delivers the exact fit and construction spec of the original unit. Confirm your model code against the fitment list before ordering to ensure compatibility with your trowel configuration.

Key Features

• Genuine OEM Construction — Manufactured to Multiquip's original design tolerances, ensuring the splined hub engagement and blade arm geometry match the factory-installed assembly exactly.
• Splined Hub Interface — The L.S. splined design locks directly onto the lower shaft, providing positive rotational transfer without slippage or blade-pitch drift during finishing passes.
• 6-Blade Configuration — Supports a full six-blade setup for maximum surface coverage, consistent finish quality, and even load distribution across the trowel head.
• Broad Hydrostatic Trowel Fitment — Compatible with HTXD6i, STXD6i, STX55Y6, STX55J6, HTX44Y5, and HTX44Y4 — covering both HTX and STX series hydrostatic ride-on trowels.
• Finish Quality Protection — A worn or damaged spider assembly causes uneven blade pitch across the head, producing inconsistent concrete surface finish; replacing with part 11980 restores uniform blade action.

The spider assembly is the central hub component of a ride-on trowel's finishing head, connecting the gearbox output shaft to the individual trowel blade arms. It translates rotational drive into synchronized blade movement while allowing pitch adjustment across all six blades simultaneously. When the spider assembly wears — particularly at the splined bore or blade arm seats — blades lose uniform pitch control, leading to chatter marks, uneven finish, and excessive operator correction on freshly placed concrete slabs.

For questions about part 11980 or to confirm fitment on your Whiteman ride-on trowel, contact the DHS Equipment 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.