The Multiquip 12489 Flange Gasket is a genuine OEM component designed for STH and HTH44T series hydrostatic ride-on trowels. As a direct OEM replacement, it is manufactured to the same specifications as the original part, ensuring a proper seal at the flange joint without rework or modification. This gasket is confirmed for use on STH and HTH44T hydrostatic ride-on trowel models. Keep a spare on hand to minimize unplanned downtime during troweling operations.
Key Features
- Genuine OEM Sealing Integrity — Manufactured to the exact compression and material grade of the original, ensuring a leak-free seal at the flange interface from day one.
- Direct-Fit Installation — Matches the original flange profile and bolt pattern on STH and HTH44T trowels for a straightforward drop-in replacement.
- Confirmed Fitment — Compatible with STH and HTH44T hydrostatic ride-on trowel models; always cross-reference part number 12489 before ordering.
- Protects Hydraulic System Performance — A correctly seated flange gasket maintains system pressure and prevents fluid seepage that can compromise hydraulic blade and drive control.
- OEM Sourcing from DHS Equipment — Sourced as a genuine Multiquip part, giving you confidence that this part meets the original design intent for your machine.
A flange gasket creates a pressure-tight seal between two mating flange surfaces in the machine's hydraulic or fluid circuit. On hydrostatic ride-on trowels like the STH and HTH44T, maintaining a sound seal at these joints is critical — a failed or worn gasket allows fluid to escape, which can cause erratic blade pitch response, loss of drive pressure, and accelerated wear on surrounding hydraulic components. Replacing a degraded flange gasket promptly restores proper system integrity and keeps the trowel operating consistently across the full range of finishing passes.
Part Details
| Part Number | 12489 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flange Gasket |
Compatibility & Fitment
| Name | Model |
|---|---|
| Hydrostatic Ride-On Trowels | STH |
| Hydrostatic Ride-On Trowels | HTH44T |
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.
