Wacker Neuson 5000181872 Spider Assembly Kit

The Wacker Neuson Spider Assembly Kit is a genuine OEM Spider Assembly Kit designed for the CT36 and CT48 series walk-behind power trowels, including the CT36-5A, CT36-6, CT36-8A, CT36-9, CT36-400E, CT48-8A, CT48-9, CT48-11A, and CT48-13A-V models. As a direct factory replacement, this kit ships with every component needed to restore the spider assembly to original operating condition — no sourcing individual pieces separately. Wacker Neuson genuine OEM parts are manufactured to the same specifications as the original components, so you can be confident the will install and perform exactly as the factory intended. With broad coverage across the CT36 and CT48 trowel families, this is a high-demand service kit for contractors and equipment shops keeping concrete finishing equipment on the slab.

Key Features

• Genuine OEM Construction: — Manufactured by Wacker Neuson to original design tolerances, ensuring the spider assembly seats and articulates correctly within the gearbox and blade pitch system.
• Complete Kit Format: — Supplies all components of the spider assembly in a single part number, eliminating the need to cross-reference and order individual sub-components separately.
• Broad CT-Series Fitment: — Confirmed fit across CT36 and CT48 walk-behind trowel variants, covering gas-powered and electric models including the CT36-5A, CT36-8A-V, CT48-9, CT48-11A, CT48-13A-V, and more.
• Restores Blade Pitch Control: — A worn or damaged spider assembly causes uneven blade angle, inconsistent float finish, and increased operator effort; replacing it with this kit brings pitch response back to full, smooth operation.
• Direct Replacement Installation: — Designed to swap in where the original assembly was removed, using the same mounting points and hardware interfaces as the factory-installed part.

The spider assembly is the mechanical hub at the center of a walk-behind trowel's rotor system. It connects the gearbox output to the trowel arms and controls the collective pitch of the finishing blades — allowing the operator to adjust blade angle for floating or finishing passes. When the spider assembly wears, cracks, or seizes, blade pitch becomes erratic or unresponsive, leading to an uneven concrete surface and increased stress on the gearbox. Replacing a failed spider assembly promptly restores smooth, consistent blade control and protects the surrounding drivetrain components from further wear.

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.