Multiquip 21468 Plastic Knob 1/4-20 x 1 Stud

The Multiquip 21468 Plastic Knob 1/4-20 x 1 Stud is a genuine OEM component designed for Whiteman ride-on power trowels and SP1G saw equipment, including HTX44, STX55, STXD6i, and HTXD6i series machines. As a direct OEM replacement, part 21468 is manufactured to the same specifications as the original, ensuring a correct thread engagement on the 1/4-20 stud without the need for fitment adjustments. Sourced directly through authorized Multiquip channels, this knob is the correct choice when restoring controls or operator interface components to original condition. DHS Equipment stocks genuine Multiquip OEM parts so you can get the right part the first time.

Key Features

• Genuine OEM Thread Spec: — Manufactured to exact 1/4-20 thread specification, ensuring full engagement and secure hold on the stud without stripping or cross-threading.
• Drop-In Stud Compatibility: — Designed to thread directly onto the 1/4-20 x 1 stud as originally installed, matching the original mounting point precisely.
• Broad Trowel Series Coverage: — Confirmed fitment across HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, STXD6i, and HTXD6i ride-on power trowels, plus the SP1G saw.
• Operator Control Integrity: — A worn or cracked knob compromises the operator's grip and control adjustments; replacing it with the correct OEM part restores confident, secure operation.

A plastic knob on a ride-on trowel or saw serves as the operator's direct interface with a threaded adjustment stud, allowing settings to be tightened or loosened by hand without tools. The knob's thread form must match the stud precisely — in this case a 1/4-20 thread — so that clamping force is applied evenly and the knob seats firmly without wobble. When a knob becomes cracked, stripped, or broken, the associated control point becomes difficult or impossible to adjust safely, which can affect machine setup and operator confidence during use.

Part Details

Compatibility & Fitment

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.