The Multiquip 11876 Spider Plate 1-1/8 Shaft 4 Blade J/B Rider is a genuine OEM component designed for JTNS20, JTNSW20, JTNSW20HTCSL, and JTNSW24HTCSL International Ride-On Power Trowels. This is a direct Multiquip OEM part, manufactured to the exact specifications of the original, ensuring correct geometry and blade engagement on the trowel rotor assembly. Sourced directly through authorized distribution, part number 11876 is the factory-correct replacement when the spider plate shows wear, cracking, or dimensional loss that affects blade pitch or blade-to-blade consistency.
Key Features
- Genuine OEM Construction — Manufactured to Multiquip's original engineering tolerances for the spider plate hub interface, ensuring correct blade seating across all four blade arms.
- 1-1/8 Inch Shaft Bore — Machined specifically for the 1-1/8 inch rotor shaft found on J/B Rider configurations, allowing direct installation without shaft modification.
- 4-Blade Rotor Compatibility — Configured for four-blade rotor assemblies, maintaining correct blade spacing and pitch geometry throughout the finishing pass.
- Confirmed Fitment — Verified for JTNS20, JTNSW20, JTNSW20HTCSL, and JTNSW24HTCSL ride-on power trowel models.
- Restores Consistent Surface Finish — A worn or damaged spider plate causes uneven blade pitch and inconsistent pressure across the slab surface; replacing with part 11876 restores uniform blade action and finish quality.
The spider plate is the central hub component that connects the trowel's rotor shaft to the finishing blades, transmitting rotational force while allowing blade pitch to be adjusted during operation. On a four-blade ride-on trowel, the spider plate must maintain precise dimensional integrity so each blade arm sits at the same angle and exerts equal pressure on the concrete surface. When the spider plate wears or cracks, blade pitch becomes uneven, surface finish quality deteriorates, and continued operation risks further damage to the rotor assembly. Replacing the spider plate with the correct Multiquip OEM part restores proper blade geometry and protects the surrounding drivetrain components.
Part Details
| Part Number | 11876 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spider Plate 1-1/8 Shaft 4 Blade J/B Rider |
Compatibility & Fitment
| Name | Model |
|---|---|
| International Ride-On Power Trowels | JTNS20 |
| International Ride-On Power Trowels | JTNSW20 |
| International Ride-On Power Trowels | JTNSW20HTCSL |
| International Ride-On Power Trowels | JTNSW24HTCSL |
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.
