The Multiquip 21107 Filter Suction 5" 10 Micron Syn LHA is a genuine OEM suction filter designed for HTX44 and STX55 series Whiteman hydrostatic ride-on power trowels. As a direct OEM replacement, part 21107 meets the exact specifications required by Multiquip for these hydrostatic trowel platforms, ensuring proper hydraulic system protection. Compatible models include the HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, and STX55Y6, making this filter a reliable service part for a wide range of Whiteman ride-on trowel configurations. Keeping the hydraulic suction circuit clean with the correct filter is essential to protecting pump and valve components throughout the service life of the machine.
Key Features
- Genuine OEM Filtration Rating — 10 micron synthetic media provides the exact contamination control specified for the HTX44 and STX55 hydraulic systems.
- Correct 5" Form Factor — Sized to fit the suction port housing without modification, ensuring a secure, leak-free installation at the hydraulic inlet.
- Broad HTX44 and STX55 Coverage — Fits HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, and STX55Y6 Whiteman hydrostatic ride-on trowels.
- Hydraulic Pump Protection — A clean suction filter prevents particulate ingestion that can score hydraulic pump internals and degrade blade pitch control responsiveness.
- Synthetic Filter Media — Synthetic construction resists collapse under suction pressure and maintains filtration efficiency across a wide operating temperature range.
A suction filter sits at the inlet of a hydraulic pump and prevents particulate contamination from entering the hydraulic circuit before the fluid reaches the pump. In hydrostatic ride-on trowels like the HTX44 and STX55 series, the hydraulic system drives both blade pitch adjustment and machine propulsion, so unfiltered flow can accelerate wear on precision pump and motor components. When a suction filter becomes clogged or collapses, the pump starves for fluid, causing sluggish controls, overheating, and potential pump failure — making timely filter replacement a critical part of routine hydraulic maintenance.
DHS Equipment is an authorized Multiquip parts dealer. If you need help confirming this part fits your specific machine, contact our team before ordering.
Part Details
| Part Number | 21107 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Filter Suction 5" 10 Micron Syn LHA |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44K4 |
| Whiteman Ride-On Power Trowels | HTX44K5 |
| Whiteman Ride-On Power Trowels | STX55J6 |
| Whiteman Ride-On Power Trowels | HTX44Y4 |
| Whiteman Ride-On Power Trowels | HTX44Y5 |
| Whiteman Ride-On Power Trowels | STX55Y6 |
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.
