The Multiquip 12791 Left Side Spider Assembly (1-1/4) is a genuine OEM component designed for Mechanical Ride-On Trowel models HTN-31VTCSL5 and HTO-31VTCSL5. As a direct OEM replacement, 12791 is manufactured to the same specifications as the original part, ensuring correct fitment and consistent trowel blade pitch control. Sourced directly through authorized Multiquip distribution, this assembly is the recommended replacement when the left-side spider shows wear, binding, or damage that affects blade angle performance.
Key Features
- Genuine OEM Spider Geometry — Manufactured to exact original tolerances, ensuring proper blade arm engagement and pitch adjustment across all operating positions.
- Direct Bolt-In Replacement — Matches the original mounting configuration on HTN-31VTCSL5 and HTO-31VTCSL5 trowels, with the correct 1-1/4 interface specification for immediate installation.
- Confirmed Fitment — Verified for Multiquip Mechanical Ride-On Trowel models HTN-31VTCSL5 and HTO-31VTCSL5.
- Consistent Blade Pitch Control — A properly functioning spider assembly maintains uniform blade angle across all rotor arms, which is critical to achieving a smooth, even finish on concrete slabs.
- Left-Side Specific Design — This assembly is engineered specifically for the left rotor position; using the correct side-specific part prevents misalignment and uneven finish patterns.
The spider assembly is the central hub component that connects the trowel's rotor arms and translates input from the pitch control mechanism into consistent blade angle adjustments. On a ride-on trowel, the left and right spider assemblies work in tandem to maintain even surface pressure and finish quality across the full machine width. When a spider assembly wears or becomes damaged, blade pitch becomes inconsistent or unresponsive, resulting in uneven concrete finishing, increased operator effort, and potential damage to adjacent drive components. Replacing it with the correct OEM part restores precise pitch response and protects the integrity of the rotor assembly.
Part Details
| Part Number | 12791 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Left Side Spider Assembly (1-1/4) |
Compatibility & Fitment
| Name | Model |
|---|---|
| Mechanical Ride-On Trowels | HTN-31VTCSL5 |
| Mechanical Ride-On Trowels | HTO-31VTCSL5 |
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.
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