The Multiquip 321800006 is a genuine OEM Metering Curve Kit designed for HTX44 and HHX series hydrostatic ride-on power trowels. As a direct OEM replacement, this kit is manufactured to the same specifications as the original component, ensuring consistent blade pitch response across the full range of trowel operation. Confirmed fitment covers the HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, HHXD5, HHXG5, and HHXD5-ES models. Sourced directly from Multiquip, the 321800006 is the correct choice when restoring precise pitch control to your ride-on trowel.
Key Features
- Genuine OEM Pitch Control Accuracy — Manufactured to original Multiquip specifications, ensuring the metering curve delivers the correct blade angle response across the full pitch range.
- Direct-Swap Installation — Replaces the worn or damaged metering curve using the same mounting points and geometry as the factory part, making reinstallation straightforward.
- Broad HTX44 and HHX Series Fitment — Compatible with HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, HHXD5, HHXG5, and HHXD5-ES ride-on power trowels.
- Consistent Blade Response — A correctly functioning metering curve translates operator input into smooth, progressive blade pitch adjustment, which is critical for achieving an even finish on large concrete slabs.
- Operational Safety — Worn or damaged metering curves can cause erratic blade pitch behavior during finishing passes; replacing with a genuine OEM kit restores predictable, controlled machine response.
The metering curve is a mechanical cam or guide component within the blade pitch control system of a hydrostatic ride-on trowel. It translates the operator's handle input into a calibrated change in blade pitch angle, governing how aggressively the blades engage the concrete surface. When the metering curve wears or deforms, blade pitch response becomes inconsistent — leading to uneven concrete finishing, difficulty controlling the machine's direction of travel, and increased operator fatigue. Replacing it with a correct OEM kit like the Multiquip 321800006 restores the precise, linear pitch feel that these machines depend on for professional-grade finishing results.
Part Details
| Part Number | 321800006 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Metering Curve Kit |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HHXD5 |
| Whiteman Ride-On Power Trowels | HHXG5 |
| Whiteman Ride-On Power Trowels | HHXD5-ES |
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.
