The Multiquip 8131 is a genuine OEM Finish Nut LH 5/16-24 designed for Whiteman hydrostatic ride-on power trowels, including the STX55Y6, STX55J6, STX6H, HTX6H, HTX44Y5, HTX44Y4, HTX44K5, and HTX44K4. As a direct OEM component sourced from Multiquip, this nut meets the exact thread specification and material grade required by the original design. Left-hand thread hardware is application-specific, making correct part selection critical — the 8131 ensures the right fit the first time. Confirm your model code against the fitment list before ordering to ensure compatibility with your machine.
Key Features
- Left-Hand Thread Precision — Machined to a 5/16-24 LH thread specification, matching the exact fastener requirement where standard right-hand hardware cannot be substituted.
- Genuine OEM Component — Sourced directly from Multiquip, this nut carries the same material grade and dimensional tolerance as the hardware installed at the factory.
- Broad STX and HTX Fitment — Compatible across STX55, STX6H, HTX6H, and HTX44 series Whiteman ride-on power trowels, covering a wide range of hydrostatic trowel configurations.
- Secure Fastening Under Load — A correctly torqued finish nut maintains critical assembly integrity on rotating and high-vibration components; a worn or mismatched nut risks loosening under operational stress.
- Drop-In Installation — Matches the original thread engagement and seating profile, allowing straightforward replacement during scheduled maintenance or field repair.
A finish nut is a low-profile fastener used to lock or terminate a threaded assembly while minimizing protrusion beyond the mating surface. On ride-on power trowels, left-hand thread fasteners are used in specific locations — typically on rotating assemblies — where the natural direction of rotation would otherwise loosen a conventional right-hand nut over time. Using the incorrect thread direction in these positions will result in progressive loosening, potential loss of the fastened component, and risk of damage to surrounding hardware. Replacing a worn or missing finish nut with the correct Multiquip 8131 restores the integrity of the assembly and keeps the trowel operating as intended.
For fitment questions or to confirm compatibility with your specific serial number, contact the DHS Equipment parts team directly.
Part Details
| Part Number | 8131 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Finish Nut LH 5/16-24 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | STX6H |
| Whiteman Ride-On Power Trowels | HTX6H |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
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.
