The Multiquip 12908 is a genuine OEM Right-Hand Worm Gear designed for HDA-Series walk-behind power trowels and Whiteman ride-on trowel models including JWN24HTCSL, JWN24HSCSL, HTN28K, and HTN27K. As a direct OEM component, this gear is manufactured to the same specification as the original, ensuring proper mesh geometry and torque transfer within the trowel's blade pitch system. Sourcing the correct-handed gear matters — installing the wrong orientation will result in improper blade adjustment function, so confirming fitment against your model code before ordering is essential. DHS Equipment supplies this part as a stocked Multiquip OEM replacement to keep your finishing equipment running at full capability.
Key Features
- OEM-Grade Worm Profile: — Tooth geometry and right-hand helix angle match original Multiquip specifications, ensuring smooth meshing and accurate blade pitch response.
- Correct Handed Configuration: — Specifically engineered as a right-hand worm gear; installs directly into the designated blade pitch gearbox position without modification.
- Broad Trowel Family Coverage: — Fits HDA-Series walk-behind trowels, JWN24HTCSL, JWN24HSCSL, HTN28K, and HTN27K ride-on trowel models.
- Blade Pitch Precision: — A worn or damaged worm gear causes inconsistent blade angle adjustment, leading to uneven concrete finishing and loss of operator control over surface texture.
- Direct OEM Sourcing: — Supplied as a genuine Multiquip part, this gear carries the same part number 12908 used in Multiquip service documentation, making cross-referencing straightforward.
The worm gear is a core component of the blade pitch adjustment mechanism in a power trowel. It works in tandem with a worm wheel to translate rotational input from the pitch control into precise angular movement of the trowel blades. When this gear wears, chips, or fails, the operator loses the ability to accurately set blade pitch — resulting in poor surface finish quality, uneven compaction of the concrete surface, and potential damage to adjoining drivetrain components. Replacing a worn right-hand worm gear promptly restores full pitch control and protects the surrounding gearbox assembly.
Part Details
| Part Number | 12908 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Right-Hand Worm Gear |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Walk-Behind Power Trowels | HDA-SERIES |
| Whiteman Ride-On Power Trowels | JWN24HTCSL/HSCSL |
| Whiteman Ride-On Power Trowels | HTN28K |
| Whiteman Ride-On Power Trowels | HTN27K |
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.
