The Multiquip 151B0113 is a genuine OEM Seal Kit Complete OMTW 315 designed for HTX44 and STX55 series hydrostatic ride-on power trowels, including the HTX44K5, HTX44Y4, HTX44Y5, and STX55Y6. As a factory-sourced component, this seal kit matches the original material grades and dimensional tolerances specified for these machines — ensuring a correct installation without the guesswork of adapting an off-spec part. DHS Equipment supplies this kit direct from Multiquip's authorized parts inventory, so you can be confident you're getting the exact assembly your machine calls for.
Key Features
- Genuine OEM Sealing Materials — Factory-spec elastomers and seal compounds matched to the hydraulic fluid compatibility and pressure ratings of the OMTW 315 motor circuit.
- Complete Kit — One Part Number — All seals needed for a full OMTW 315 motor reseal are included in a single assembly, streamlining the rebuild process.
- Confirmed Fitment — Verified for HTX44K5, HTX44Y4, HTX44Y5, and STX55Y6 hydrostatic ride-on trowels.
- Restores Hydraulic Integrity — Worn or compromised seals cause internal hydraulic leakage, reducing blade pitch control responsiveness and drive performance; replacing with this kit returns the motor to proper operating condition.
- Hydraulic System Safety — Degraded seals can lead to uncontrolled hydraulic pressure loss, affecting blade and drive response on an active trowel; correct sealing is essential for predictable machine behavior.
The OMTW 315 is a hydraulic orbit motor used in the blade pitch and drive systems of Multiquip's hydrostatic ride-on trowels. Seals within this motor prevent internal and external hydraulic fluid bypass, maintaining the pressure needed for consistent blade angle adjustment and smooth forward and reverse travel. When seals wear or fail — typically from heat cycling, contamination, or age — the motor loses efficiency, resulting in sluggish or erratic blade control and potential fluid leaks that can escalate into more significant hydraulic damage if left unaddressed.
For questions about fitment or to confirm this is the correct seal kit for your machine, contact the DHS Equipment parts team before ordering.
Part Details
| Part Number | 151B0113 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Seal Kit Complete OMTW 315 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | HTX44K5 |
| 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.
