The Multiquip 12771 is a genuine OEM LH Worm Gear HT 1-1/4 designed for Whiteman and International ride-on power trowel models including HTN-KHOLER, HTN27K, HTN28K, and HTNS5S-2. As a direct Multiquip OEM component, part 12771 is manufactured to the same specifications as the original gear, ensuring correct tooth geometry, hand orientation, and dimensional fit within the trowel's drive assembly. This is a left-hand worm gear — confirm your machine's drive configuration before ordering to ensure you receive the correct-handed component for your application.
Key Features
- OEM Gear Geometry: — Cut to the original left-hand helix angle and tooth profile, maintaining correct mesh engagement with the mating worm shaft in the trowel drive assembly.
- Drop-In Drive Assembly Fit: — Dimensioned to mount directly into the HTN-series gearbox housing without modification, aligning with existing shaft, keyway, and bearing positions.
- Confirmed HTN-Series Fitment: — Verified for HTN-KHOLER, HTN27K, HTN28K, and HTNS5S-2 Whiteman and International ride-on power trowels.
- Smooth Blade Speed Transmission: — A correctly functioning worm gear transfers engine torque to the trowel blades evenly; a worn or stripped gear causes erratic blade rotation, uneven finishing, and accelerated wear on the mating shaft.
- Genuine Multiquip OEM Part: — Sourced directly from Multiquip, part number 12771 carries full OEM traceability and is the same component supplied in original equipment production.
A worm gear is a key element of the power trowel's blade-drive gearbox, converting rotational input from the engine-driven shaft into the controlled blade speed needed for smooth concrete finishing. The left-hand orientation of this worm gear determines the direction of torque transfer, making it essential to match the correct-handed gear to your specific machine's gearbox configuration. When this gear wears, chips, or strips, blade rotation becomes inconsistent or stops entirely, compromising finish quality and potentially damaging the worm shaft and housing.
Part Details
| Part Number | 12771 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | LH Worm Gear HT 1-1/4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTN-KHOLER/ONAN/HONDA |
| Whiteman Ride-On Power Trowels | HTN27K |
| Whiteman Ride-On Power Trowels | HTN28K |
| International Ride-On Power Trowels | HTNS5S-2 |
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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