The Multiquip 2128 Pitch Control Shaft is a genuine OEM component designed for HTX44, STX55, HTXD6i, STXD6i, HHN31V, HHN34TVD, and CA4HC/CA5BC series Whiteman power trowels. As a direct OEM replacement, it is manufactured to the same specifications as the original part, ensuring consistent blade pitch adjustment performance across the trowel's operating range. Verified fitment spans both ride-on hydrostatic and walk-behind trowel models, making part 2128 a reliable choice for operators maintaining machines in these families.
Key Features
- Genuine OEM Shaft Tolerancing — Machined to the original dimensional specification, ensuring smooth rotational engagement within the pitch control linkage without binding or play.
- Drop-In Replacement — Installs directly into the existing pitch control assembly on compatible trowel models, matching original mounting points and shaft geometry.
- Broad Trowel Fitment — Compatible with HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, STX55Y6, HTXD6i, STXD6i, HHN31V, HHN34TVD, and CA4HC/CA5BC models.
- Consistent Blade Pitch Response — A correctly functioning pitch control shaft delivers precise, repeatable blade angle adjustment, allowing the operator to maintain optimal finishing pressure across the slab.
- Operational Safety Relevance — Worn or damaged pitch control components can cause unpredictable blade response on ride-on trowels; replacing with a genuine OEM shaft restores predictable handling and operator control.
The pitch control shaft is a core mechanical link in a power trowel's blade pitch adjustment system. It transmits the operator's input — whether through a joystick, handle, or control arm — into actual blade angle changes at the spider assembly, directly controlling how aggressively the blades bear down on the concrete surface. When this shaft is worn, bent, or damaged, the operator loses precise control over blade pitch, which can result in uneven finishing, blade chatter, or an inability to properly float or finish a slab. Replacing it promptly with a correct OEM component restores full control authority and protects the quality of the finished surface.
For fitment questions or to confirm compatibility with your specific serial number, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 2128 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Pitch Control Shaft |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | HTXD6i |
| Whiteman Ride-On Power Trowels | STXD6i |
| Whiteman Walk-Behind Power Trowels | CA4HC/CA5BC |
| Whiteman Ride-On Power Trowels | HHN31V |
| Whiteman Ride-On Power Trowels | HHN34TVD |
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.
