The Multiquip 2129 Shaft Assembly Pillow Block Bearing Service is a genuine OEM component designed for STX55, HTX44, HHN34, HTXD6i, STXD6i, and related Whiteman and International ride-on power trowel models. As a direct OEM replacement, part 2129 is manufactured to the same specifications as the original, ensuring correct fit and function within the rotor drive system. This assembly is also confirmed compatible with HTN and JTO series ride-on trowels, making it a widely applicable service part across the Multiquip hydrostatic and mechanical trowel lineup. When your pillow block bearing assembly shows wear, having the correct OEM shaft assembly on hand keeps your finishing operation on schedule.
Key Features
- Genuine OEM Precision: — Manufactured to original design tolerances, ensuring the shaft seats correctly within the pillow block housing and maintains proper rotor alignment under continuous finishing loads.
- Direct-Fit Replacement: — Matches the original mounting configuration on STX55, HTX44, HHN34, HTXD6i, STXD6i, HTN, and JTO series trowels for a straightforward service swap.
- Broad Trowel Family Coverage: — A single part number covers STX55J6, STX55Y6, HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, and additional Whiteman and International ride-on trowel configurations.
- Rotor Drive Integrity: — A worn or failed pillow block bearing shaft assembly causes rotor wobble, uneven blade pitch, and accelerated wear on surrounding drivetrain components — replacing it restores smooth, consistent blade rotation.
- Verified Multiquip Part Number: — Ordering by OEM part number 2129 eliminates substitution risk and confirms you receive the correct assembly for your specific trowel model.
The pillow block bearing shaft assembly is a core element of a ride-on trowel's rotor drive system. It supports the rotating shaft within a fixed housing, allowing the trowel blades to spin consistently under the load of concrete finishing work. When the bearing or shaft surface wears, the rotor loses concentricity, which translates directly into uneven blade contact with the slab surface, increased vibration, and accelerated wear on adjacent components. Replacing this assembly with the correct OEM part restores the precise rotational geometry the machine depends on to produce a flat, well-finished concrete surface.
Part Details
| Part Number | 2129 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Shaft Assembly Pillow Block Bearing Service |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | STX55Y6 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | HHN34TVD |
| Whiteman Ride-On Power Trowels | HTXD6i |
| Whiteman Ride-On Power Trowels | STXD6i |
| International Ride-On Power Trowels | JTNSW24HTCSL |
| International Ride-On Power Trowels | JTNSW20HTCSL |
| International Ride-On Power Trowels | JTNSW20 |
| International Ride-On Power Trowels | JTNS20 |
| Whiteman Ride-On Power Trowels | HTN-KHOLER/ONAN/HONDA |
| Whiteman Ride-On Power Trowels | JTO-SERIES |
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.
