The Multiquip 3911758 is a genuine OEM HHN CVT Clutch Stub Shaft designed for HHN31V and HHN34TVD Whiteman mechanical ride-on power trowels. As a direct Multiquip OEM component, part 3911758 is manufactured to the exact dimensions and material specifications required for proper CVT clutch engagement on these machines. This stub shaft is a critical drivetrain component, and sourcing a genuine replacement ensures the CVT clutch system operates exactly as Multiquip intended. Verify your model number against the HHN31V and HHN34TVD fitment before ordering to confirm this is the correct part for your machine.
Key Features
- Genuine OEM Dimensional Accuracy — Machined to the exact tolerances required for correct CVT clutch engagement, ensuring the shaft seats and drives as originally designed.
- Direct Drop-In Replacement — Engineered to match the original stub shaft interface on HHN-series trowels, allowing straightforward installation without custom fitting or machining.
- Confirmed Fitment for HHN31V and HHN34TVD — Specifically validated for Whiteman HHN31V and HHN34TVD mechanical ride-on power trowels.
- Maintains CVT Clutch Integrity — A worn or damaged stub shaft causes slippage, inconsistent power transfer, and accelerated clutch wear; replacing it restores full drivetrain responsiveness.
- Drivetrain Safety Compliance — Correct stub shaft geometry is essential for predictable clutch engagement on a ride-on trowel, where unexpected drive behavior poses a direct operator safety risk.
The stub shaft is the mechanical link between the CVT clutch assembly and the drivetrain on HHN-series ride-on trowels. It transmits rotational force from the clutch to the downstream drive components, and its geometry directly governs how smoothly and consistently power is transferred as the operator varies blade speed and machine movement. When a stub shaft wears, bends, or fractures, the result is erratic power delivery, excessive clutch heat, and potential loss of drive control — making timely replacement essential for both machine performance and operator safety.
For fitment questions or help confirming this is the right part for your HHN31V or HHN34TVD, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 3911758 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | HHN CVT Clutch Stub Shaft |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HHN31V |
| Whiteman Ride-On Power Trowels | HHN34TVD |
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.
